What are the features of memory cedar auto 10?

The device was developed in 2008 at the LLC "Scientific and Production Enterprise "Dunes" in the city of Tomsk, replacing its predecessor Kedr-Avto-4. It is intended for charging batteries based on acid electrolyte and lead plates. (12-volt). In comparison with the previous model charger cedar auto 10 compares favorably:

• It has a high degree of protection against incorrect connection, overload and short circuit clamps;
• The model is equipped with the most modern transformers manufactured by the leading enterprise of the Russian Federation;
• There is a pre-start mode - afterburner mode (the battery is charged at a current of up to 10A), after which it automatically switches to nominal charging with a current of 5A;
• After the process of charging the battery with a current of 4 A, the system will automatically transfer the device to the recharging mode at a current strength of 0.5 A. Thus, a full battery charge is guaranteed and its overcharging is not allowed;
• It is possible to desulfate the battery in a cyclic charge mode;
• The warranty period is exactly one year from the date of sale;
• In automatic charge mode, the rated current is 4A;
• With proper operation and compliance with the rules of storage, the service life is at least five years;
• The weight of the device does not exceed 0.6 kilograms.

Brief description of the charger cedar auto 10:

Prestart charge mode - does not exceed 10 A;
Dimensions - 185X130X90 millimeters;
Power consumption - does not exceed 250W;
Charge current nominal 4 A;
The nominal voltage of the battery to be charged is 12V;
Mains voltage nominal - 220 ±10% V;
Weight - does not exceed 0.6 kilograms.

The time it takes to fully charge the battery with high quality directly depends on how discharged the battery was before charging, and what capacity the battery has. The pre-start mode is provided thanks to the microprocessor that the cedar auto 10 charger is equipped with. To activate it, you just need to press the "Automatic" button intended for this. After that automatic system charger supplies increased current. This mode is indispensable in cases where you need to charge the battery as quickly as possible.

Comments (17):

If you put a zener diode at 8.5V, nothing bad will happen? Will this affect the operation and characteristics of the device in any way?

#2 root June 14 2017

Victor, here are the parameters of the KS175Zh, which is installed in the circuit:

• Minimum stabilization voltage 7.1 V;
• Rated stabilization voltage - 7.5 V;
• Maximum stabilization voltage - 7.9 V;
• Zener diode stabilization current - 4 mA.

As you can see, the zener diode has some stabilization voltage spread: 7.1-7.9 V. It is used in the circuit to power the logic circuits of the K176 series.
Most likely, replacing the KS175Zh with a zener diode with a voltage of 8.5V will not affect the operation of the charger in any way.

#3 Vladimir January 19 2018

Why is the scheme like this? printed circuit board from another schema?
I can't find it from the printed circuit board diagram.

#4 root January 19 2018

Vladimir, the printed circuit board (Fig. 10) was developed for the 1991 circuit (Fig. 7), and it differs slightly from the original factory board (Fig. 9). The printed circuit board drawing for the circuit in Figure 3 has not yet been seen by us.

#5 Eugene February 11 2018

There is a PCB in Sprint-Layout-6. If you want I can post it.

#6 root February 11 2018

Eugene, thanks for sharing! Printed circuit board for Kedr-Auto-4A (SprintLayout 6) - Download

#7 Vladimir July 25 2018

Is there an alternative to KU202G?

#8 root July 26 2018

Foreign analogues of KU202 - BT138, VT151 (12A) in the TO-220 package.

#9 Arthur October 28 2018

How to add manual mode for cedar auto 4A, so that you can force charge with a current of 6A?

#10 Alex January 08 2019

I got to repair KEDR AUTO 12V, I don’t know the year. I will not speak for all CEDARs, only on the example of this instance. Printed circuit board and wiring diagram according to Fig. 10. Schematic diagram - fully complies with Fig. 7. Diagram Fig. 3 contains obvious errors, the connection of the DD4 - K176TM2 chip is incorrectly shown. There, even for the DD4.2 part, the legs of the microcircuit are incorrectly numbered. In my copy, it was this microcircuit that failed, I had to figure it out. As shown in the diagram in Fig. 3, the node on the DD4 chip cannot work correctly. It would be better to remove it .... the diagram in Fig. 3.

#11 root January 09 2019

Alex, thanks for the comments. Errors corrected. We checked the numbering of the pins of all microcircuits in Figure 3 - for the DD4.2 element, they were mixed up in places 12 with 13 and 10 with 11.

#12 Geory February 03 2019

All health! They gave me a cedar 12v out of order, the problem is in the trance. TPP3-2-220-50k did not find anything in the current network (consists of 1 primary 1-2, and two secondary 5-6, and 4-3 the resistance of the primary and secondary and output voltages is very necessary. Thanks in advance.

#13 Pavel February 04 2019

Hello, What do R5 and R9 govern? How can I limit the voltage to 14.8V?

#14 Dmitry February 06 2019

Good day to all! One person has already asked about an alternative to KU 202g. I'm not very good at radio and electrical equipment. One of the thyristors has failed. In the store, when buying, the "master sellers" assured that KU 202g and Ku 202zh are interchangeable (at that time KU 202g was not on sale). Yes, of course, after installing the KU 202zh, the device works, but the automatic shutdown does not work when the battery is already fully charged.
You have to constantly watch so that recharging does not happen and the plates in the battery do not crumble.
Maybe there is still an alternative EXACTLY KU 202g?

#15 root February 06 2019

Thyristors KU202G and KU202ZH are identical in terms of characteristics, except for the parameter " Constant pressure in the closed state", where it is equal to 50V and 10V, respectively.

The circuit is low-voltage and this parameter here may not be so critical, perhaps some other details have failed. It is necessary to check whether all transistors and diodes are working, to study the operation of the device and check the microcircuits.

The board has a trimming resistor R5 "End of charge" (diagram in Figure 7), perhaps it was twisted without understanding and the device is not configured to turn off the charge when a certain voltage level on the batteries is reached.

#16 ALEX February 11 2019

Hello. U zu cedar stopped working as a result of a break in the diodes in the circuit of the control electrodes of the thyristors.
Replaced diodes and thyristors. Charging went only in cyclic mode. When the automatic mode was turned on, the LED turned off, the ammeter showed a current of 2 a and turned off after a couple of seconds. well, but there was no fixed shutdown. Zu turns on with the specified parameters and turns off until you turn it off from the network. Please advise how it should be. Thank you in advance.

#17 alex March 14 2019

charging occurs in a cyclic mode. those. the ammeter needle deviates by 1 A and then drops again to 0 A. and so on with a frequency of approximately 50-60 Hz.

Overview of chargers for car battery series "Cedar"

Any car owner should have a charger for a 12 V car battery in their arsenal. It is simply impossible to do without it when operating a car. If you are a beginner car enthusiast and have not yet bought a charger for a battery, then you will definitely come to this. This is especially important in winter, when you need to charge the battery more often than usual. Otherwise, you may end up in a car with a “dead” battery and have to “light up”. You can, of course, charge the battery at the service station. But these are extra costs and wasted time. It is easier to charge the battery in the garage or at home. You just need to choose the right charger. In this article we will talk about chargers for the Cedar car battery. Consider different models and read what people say in the reviews.

"Kedr-M"

This charger (charger) is designed to charge car batteries. And also the device is designed to restore the performance of batteries, which they have lost as a result of oxidation and sulfation of the electrodes. In addition, the charger can be used for charge-discharge training to increase the service life.

The main features of the device:

• Disabling the charging process in automatic mode;
• There is a cyclic mode of operation (charge-discharge) to restore the lost capacity as a result of plate sulfation;
• Protection against not correct connection clamps to current leads and from short circuit;
• There is a recharge mode designed to set the battery to full capacity.

The network cable, as well as cords with clips, are located in a special compartment on the back of the device.

Note! ZU "Kedr-M" voltage, which is life-threatening. Always switch off the machine before repair work and changing the fuse. It is strictly forbidden to use self-made fuses and block the openings in the housing provided for ventilation. In addition, it is forbidden to charge the battery closer than one meter to heaters, stoves, etc.

The table below shows the main parameters of the Kedr-M device.

Characteristics	Meaning
Characteristics	Meaning
Voltage in the power supply network, V	220
Chargeable battery rating, V	12
Charge current, A	up to 4
Power consumption, watt	up to 85
Duration of impulse charge current in cyclic mode, sec	from 15 to 75
Duration of pulsed discharge current in cyclic mode, sec	from 5 to 25
Permissible ambient temperature, C	from 10 to 40
Permissible air humidity, %	98 (at 25 C)
Permissible atmospheric,	84 kPa

In order to prepare Kedr-M for work, open the rear compartment and remove the cords with terminals. Set the first toggle switch to charge mode, and the second select continuous or cyclic mode. Continuous is recommended when you need to charge the battery. The cyclic mode is used when desulfating or forming electrodes. At the same time, a 12 volt light bulb with a power of 6 watts must be connected to the terminals. Then, observing the polarity, connect the terminals to the current leads.

It is worth noting here that the Kedr-M charger has protection against short circuit and wrong connection. The device will only work if a battery with a voltage of 10 volts or more is connected to the terminals. That is, it will not charge a deeply discharged battery, going into protection.

During the operation of the charger, you can switch modes without disconnecting the device from the 220 volt network. If the battery is discharged, then at first the charging current will be 4 amps, and then it will constantly decrease. After the battery is fully charged, the charger will turn off and the LED will flash, indicating the end of the process. After that, you can set Kedr-M to recharge mode.

In cyclic mode, the battery is charged for approximately 45 seconds and then discharged by means of a connected light bulb. In this mode, there is no automatic shutdown and the process must be controlled independently.

Below you can see two options for the schematic diagram of the Kedr-M car battery charger.

In the table below, you can see the designation of the elements in the circuit diagram.

Chargers "Kedr-Auto 4A" and "Kedr-Auto 12V"

This model of charger is designed for charging, restoring 12 volt lead-acid batteries and conducting charge-charge training cycles.

The power and battery cords exit from the back of the device. Unlike the Kedr-M model, there is no compartment for laying wires. The procedure for using the Kedr-Auto 4A charger will be shown below in the "How to use?" section. The table below shows the main characteristics of these models.

The following is circuit diagram"Kedr-Auto 4A" and "Kedr-Auto 12V".

In the table you can see a list of elements indicated on the circuit diagram.

The photo below shows a printed circuit board for the manufacture of "Kedr-Auto 4A" and "Kedr-Auto 12V".

This is an improved version of the Kedr-Auto 4A charger, which was released in 2008. The manufacturer reports that the charger is designed to charge 12-volt lead-acid batteries.

What is the difference between the improved model?

• Improved protection against incorrect connection of terminals, short circuit and overload;
• When assembling, modern transformers and other components are used;
• Added prelaunch mode ("afterburner"). In this mode, the battery is charged with a current of 10 amperes. After that, the charger automatically switches to charging mode with a current of 4 amperes;
• After the end of the main stage of charging, "Kedr-Auto-10" automatically transfers the device to recharging with a current of 0.5 amperes. This ensures the most complete battery charge and eliminates overcharging.;
• Possibility to carry out desulfation in a cycle;
• In automatic charge mode, the rated current is 4A;
• Service life of 5 years, subject to the operating instructions;
• The mass of the memory is only 600 grams;
• Warranty ─ 1 year.

The main characteristics of "Kedr-Auto-10" can be seen below:

• Dimensions are 185 by 130 by 90 millimeters;
• Prestart mode with charging current up to 10 amperes;
• Rated charging current 4 amps;
• Power consumption is up to 250 watts;
• The nominal value of the rechargeable batteries is 12 volts;
• The charger is powered by 220 volts.

Charging time depends on the degree of rarefaction of the battery and its capacity. ZU "Kedr-Auto-10" has a microprocessor that controls charging. Including pre-launch mode. All this is done when the device is switched to automatic mode. First, an increased charge current is applied, which is then reduced to nominal. This speeds up the charging process.

Description Any rechargeable battery is charged from a source that exceeds the battery voltage, and this must be a source direct current. Therefore, the charger must convert the alternating current to direct current, and at the output give us the voltage necessary for charging. The device does this excellently. Here are its technical data:

• capable of operating from a household network of 220 V ± 11 V;
• the nominal voltage of the battery it charges is 12 V;
• minimum charge current - 4.0 A;
• consumes no more than 85 watts.

Designed for both charging and restoring batteries that have lost their charge due to a number of reasons. A lot of factors can cause a voltage drop on the battery, but the most basic is the sulfation of the plates and their oxidation. Cedar is also intended for training charge-discharge cycles that restore the battery's ability to hold a charge.

Charger cedar auto 10a. instruction in video format

GENERAL INFORMATION 1. Charger"Kedr-Auto" is designed to charge 12-volt batteries. The charging time depends on the capacity of the battery and the degree of its discharge. Important information for the car enthusiast who wants his battery to last a long time.

A common mistake motorists make is that they start taking care of the battery when the car can no longer be started. It is known that in the urban driving cycle the starter is often used, and during the period of short trips the generator does not have time to fully charge the battery. Let's take a look at the chemistry of the process When the battery is discharged, a white coating is deposited on the plates from the electrolyte.

This is a normal process (sulfation). And if you start charging the battery in a timely manner, then it is restored.

Charger cedar auto 10a

SAFETY REQUIREMENTS ATTENTION! Before working with the Kedr-auto charger, you must carefully study this instruction manual. It is forbidden to: - disassemble the device case and operate the charger with the top cover removed; - operate the device if the power cord is damaged; - operate in conditions of high humidity, as well as in aggressive environments; - operate the charger near open flames or other sources of heat radiation; - operate the device with closed ventilation openings. The battery charging process must be carried out in a well-ventilated area.

WORK PROCEDURE All disconnection or connection work battery to the device must be carried out with the mains voltage switched off.

Charger "cedar": description, instructions

The pre-start mode is provided thanks to the microprocessor that the Kedr AUTO 10 charger is equipped with. To activate it, you just need to press the "Automatic" button intended for this. After that, the automatic charger system supplies an increased current.

Important

This mode is indispensable in cases where you need to charge the battery as quickly as possible. 5. The device has light indicators corresponding to the operating modes. 6. The device has reliable protection against overload, incorrect connection and short circuit of the battery cord clamps.

ATTENTION! If the battery is completely discharged, the battery terminals must be removed. After 30 min. connect the charger. ATTENTION! The device only works in conjunction with a rechargeable battery. The lamp connected to the battery cord clamps will not light.

Overview of chargers for a car battery of the "cedar" series

Kedr-auto-10"). Control panel Before starting the device, it is necessary to familiarize yourself with the rules of its operation. Neglect of this simple rule can cause electric shock or even death. The most important thing is to study the control panel of the device before connecting it to the battery.
In the vast majority of cases, it includes:

1. Switch for controlling automatic modes "Charge / Recharge".
2. A fuse holder, in other words, a fuse connector.
3. Toggle switch for automatic modes "Continuous / Cyclic".
4. Ammeter and full battery indicator in the form of LED.

In the back wall of the device there is a small compartment in which there are cords necessary to connect the Kedr charger to the mains and battery.

Charger cedar auto 4a - instructions, diagram

The instruction says that to charge the battery, you must do the following:

1. Remove the cords from the cavity on the back wall, gently stretch them on the floor, make sure that the clamps do not touch.
2. Connect the device to an alternating current source of 220 Volts.
3. Switch the toggle switches to the "Charge" and "Continuous" positions.
4. Observing the polarity, connect the clamps to the battery terminals.

After that, the battery will start charging. As soon as the electric capacity is fully restored, the Kedr charger will notify you of this with a red indicator “Charging complete”. After that, the battery is ready for work. Restoration of working capacity The decrease in battery capacity occurs as a result of partial sulphation of the plates - the formation of sulphates on the electrodes. In this case, it is possible to increase the efficiency and increase the durability of the battery.

Attention

Charging the battery in cyclic mode lasts 45 seconds, after which a special light bulb turns on. This mode does not have an automatic shutdown, so it is desirable to control the entire process. "Kedr-Auto 4A" and "Kedr-Auto 12V" Both models are used for battery recovery, charging and charge-discharge training cycles. On the rear wall of the devices are the power and connection wires to the battery.

There is no special compartment for placing wires in these models. The instructions for the chargers "Kedr-Auto 4A" and "Kedr-Auto 12V" describe in detail the rules of operation and the procedure for use.

Charger cedar auto 10a instruction diagram how to use

Either the genetic force of habit, or commendable patriotism, but the Kedr Auto 4a charger enjoys a certain popularity. Many have difficulty repairing this device due to the fact that the circuit is lost, and it is not always possible to find the original one. We rummaged through our archives, and dug up a device diagram, which we offer for study.

It has a simple architecture, and it’s quite easy to figure it out if you can distinguish a resistor from a canister. And if you can’t, we will try to explain what it is, why it is needed and how to use it. When to Use the Charger Chemistry is a delicate thing, and a battery is made up of chemical processes through and through.
We will not dive into the intricacies of chemistry, but we will find out what concerns the average motorist, his battery, and the Kedr Auto 4a charger. The battery should be ok. Winter and summer.
BASIC TECHNICAL DATA Nominal supply voltage, V170-240 Supply current frequency, Hz50-60 Nominal charge voltage, V12 Nominal charge current, A5.0±1 Power consumption, W, no more than 250 Weight, kg0.6 dimensions, mm185x130×90 Pre-start charge mode, A10.0* * only for the model "Kedr-auto-10" ELECTRICAL DIAGRAM Kedr AUTO 10 CLIMATE OPERATING CONDITIONS Kedr AUTO 10 ATTENTION! The device is intended for indoor use. Ambient temperature, °С-10 +40 Relative air humidity, no more than 98% at 25°С Atmosphere pressure, kPaot 84 to 106 COMPLETENESS OF DELIVERY Kedr AUTO 10 1. Charger 1 pc. 2. Passport 1 pc. 3. Individual consumer packaging 1 pc.
Users often note that the charger can last ten or more years without any complaints. For many users, one of the main benefits is cycling, as it allows for desulfation and revitalization of old batteries. Motorists often note that with the help of this mode it was possible to restore the performance of the batteries, which for a long time were completely discharged.
Of course, it is impossible to completely restore the battery capacity, but a positive effect can be achieved. However, one may encounter negative feedback. Some owners of Kedr-Auto chargers note that the battery does not charge in automatic mode. If the battery capacity exceeds 60 Ah, then it takes a very long time to charge it due to the 4 amp limit.
Before you start charging, you need to make sure that your battery needs to be recharged and that it is working. To do this, measure the voltage at the terminals. In winter, maximum allowable level discharge is no more than 25% of the nominal value, and in summer - no more than 50%.

If the voltmeter reads lower, then the battery needs to be charged. 1. Remove the device from the packaging. 2. Connect the clamps of the charger to the battery terminals, observing the polarity. At the same time, the indicator light "AUTOMATIC" lights up. 3.

Connect the mains plug to the mains alternating current with a voltage of 220 V. 4. You can make sure that the charging process has begun by the arrow current indicator, which should show a current of 5 ± 1A. 5.

Modern chargers are small in size and weight, and also have increased efficiency and safety margin. ZU Kedr Auto 10a belongs to the category of just such products. Due to the fact that this model is produced in our country, it is maximally adapted for operation in conditions of variable characteristics of the electric current in the network.

Maintenance

Device overview

The Kedr Auto 10a charger consists of a rectangular plastic case, on the front panel of which there are indication and control elements. To control the level of charging current, the device is equipped with a mechanical ammeter.

Also, an LED is built into the front panel of the device, which allows you to visually determine in which mode the memory is operating. To the right of the LED is a button with which you can easily select the battery charge option.

On the opposite side, an electric cable with a plug and output wires to the battery are connected to the charger, at the ends of which there are spring clips.

Technical characteristics of the Kedr Auto 10a device

In order to ensure maximum efficiency when using the Kedr Auto 10a charger, you need to know the main technical characteristics of such devices. In the instructions for this device, the manufacturer specifies the following parameters:

Characteristic	Meaning
Voltage	170-240 Volts
Prestart charge mode	10 Amp
Max charging current	10 Amp
Rated charging current	5 Amp
Charge voltage	15 volt
Charge algorithm	Smooth decrease in current
Power consumption	up to 250 watts
Rated battery voltage	12 Volt
Suitable for battery charging	Lead acid
Rechargeable battery capacity	from 14 to 190 Ah
Ammeter	Strelochny
Dimensions	185x130x90mm
Weight	600 grams

The territory of Russia is divided into 4 climatic zones, therefore, in addition to the main specifications it is important to know under what environmental conditions the operation of the Kedr Auto charger is allowed.

If the car is charged in an open area in winter, then the minimum temperature below which the operation of the charger is prohibited is minus 10 degrees Celsius. The maximum positive operating temperature of Kedr Auto 10a is +40º C.

Features of the device and for which batteries it is intended

Using the Kedr Auto 10a charger, you can charge a car battery with a voltage of 12 volts. A feature of this model is the impossibility of setting the exact value of the current strength. The vehicle's main charge cycle is an automatic process that is activated when the charger is connected to the battery and ends when full charge batteries. The maximum value of the current strength at the battery terminals throughout the entire charging cycle is 5 A.

Given such features of the device, it can be assumed that it will take too long to charge large-capacity batteries. To fully restore the battery charge, it will be necessary to supply 10% to its terminals for 10 hours, so a battery with a capacity of 150 A / h cannot be charged even during the day.

How to charge the battery using Kedr Auto 10a

You can charge the battery using Kedr Auto 10a in three modes: automatic, pre-start and cyclic. Each charge recovery option has its own characteristics, therefore, in order to properly connect the device, several steps must be performed in sequence.

In automatic mode

In automatic mode, the algorithm of the device operation completely eliminates the possibility of overcharging, which cannot but have a positive effect on the “health” of the battery. To properly activate this mode, it is enough:

• Connect the charger clamps to the battery terminals observing the polarity.
• Connect the plug to an AC outlet.

Thus, 2 steps are enough for the device to start working in automatic mode. After the end of the charging cycle, the charger will reduce the supply of electric current to the minimum possible value, and for additional information about the completion of the process, the LED will start flashing.

In prelaunch mode

In a situation where the battery is not completely discharged, but it is not possible to crank the crankshaft to a sufficient number of revolutions to start the engine, you can perform express recharging using this device. In order to activate the pre-launch mode of the Kedr Auto 10a charger, you must:

• Connect the clamps to the battery terminals observing the polarity.
• Connect the device to the network.
• Press the mode switch button 2 times.

After activation of the pre-start mode, the red indicator on the front panel will glow continuously for 5 minutes, while the current at the battery terminals will increase to 10 A. This is usually enough to significantly restore the capacity of the car battery. At the end of the pre-start mode, the device will automatically be switched to automatic operation.

In cycle mode

The Kedr Auto 10a charger has a cyclic charging mode that allows you to restore batteries that have been subjected to deep discharges. As a rule, in this case, sulfates form on the surface of the plates, which prevent the normal course of a chemical reaction during standard battery charging.

To activate the cyclic mode, it is also necessary to connect the battery to the charger, as described above, but after turning on automatic mode immediately press the button located to the right of the ammeter. The activation of the intermittent operation of the device can be judged by the red LED flashing on and off alternately.

Circuit diagram

Download official instructions

PDF Operating instructions for the Kedr Auto 10 charger can be downloaded.

Do you have a charger Cedar Auto 10a? Then tell us in the comments which one and about your impressions about it, this will help other motorists a lot and make the material more complete and accurate.