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12v Dc Battery Charging Power Supply
R&D for 20 years
Top level technology
Self manufactured
Strict quality control
50 rectifiers for one order
1. Application
15v acdc switching power supply is aplied to:
Electrochemistry: Plating, anodizing, electro polishing, electrolysis, electro winning, electro refining, electronic cleaning, tinning, pickling, surface coloring, cathod protection
Heating: Inductive heating, DC heating, single phase AC heating
Water treatment: Waste water treatment, seawater desalination
Battery charging: Battery charging
2. Product basic introduction
This rectifier is suitable for battery charging to provide stable DC power supply.
This rectifier adopts high frequency IGBT as semiconductor component and PWM modulation technology. It is modular structure design, easy to expand output current capacity, several rectifier modules could be connected in parallel and mounted in stack up to 20 modules to make more current. Single rectifier has independent power modules, each module could output independently or output in parallel connection.
The rectifier is made up with the following subassemblies:
Diode bridge
IGBT inverter H bridge
High frequency transformer
Secondary Schottky diodes
Capacitors and inductors
Control and protection circuit and devices
Cooling circuit
Remote control box(optional)
3. Comparison with other suppliers
1. Rectifier status indication
(1) Auto/Manual mode display
At left it is Auto mode, at right it is Manual mode
Auto mode: ; Manual mode:
(2) CC/CV mode
At left it is CC mode, at right it is CV mode
(3) Charging status
When the rectifier is charging battery, the red light is on. When it is not charging, the color is grey.
(4) Charged status
When the rectifier finishes charging, the red light is on. Otherwise, the color is grey.
(5) Alarm status
When there is no alarm, it shows red color continuously, when there is alarm, it is flashing.
(6) Cell number
It shows number of series connected cells.
(7) Status:
l It shows the status of the rectifier, including:
Charging, charged, stop.
l When there is fault with battery, it will show battery status, including:
When actual battery voltage exceeds set max. Voltage*cell number, it will show incorrect battery voltage.
When actual battery voltage is lower than set min. Voltage*cell number, it will show no battery.
The min. and max. voltage is set on touch panel parameter setting page.
4. Unique functions of GERE rectifier
*Module structure support direct parallel, current expanding
*Touch panel for display, operation
*Profibus, Profinet, Modbus, 4-20mA, 0-10V for remote control
*Fault auto diagnose and alarm
*Timer setting, auto OFF
*Process Step Setting, auto running
*Soft Start & Stop, time setting
*Save last time output setting,such as keeping 12V while starting
*Cabinet seal for water cooling version, avoid corrosion
5. Technical parameters
| Parameters name | Parameter value |
| Input voltage | 3 phase AC 380V, 480V, 415V, 220V ±10%, 50-60Hz |
| Output DC current | Rated 1000A~120kA |
Output DC voltage | Rated 12V-200V |
| Protection class | Up to IP54 |
| Efficiency | >90% @ rated output |
| Power factor | ≥0.93 @ rated output |
| Ambient temp. | Max. 50°C |
| Cooling | Water or forced air cooling |
| Regulation range | Stepless at constant voltage or current 0-100% |
| Control precision | Voltage/current≤0.5% |
| Duty ratio | Continuous operation at rated loads up to 2000m altitude |
| Control mode | Constant current/voltage/power |
| Operation mode | Local/remote |
| Relative humidity | 15%-85%RH |
| Communication interface | RS485, 0-10V/4-20mA |
| Communication protocol | MODBUS,Profibus, Profinet, TCP/IP |
| Process programming | Available |
| Polarity reversal | Available |
| Module separate output | Available |
| Parrallel connection module number | No limit |
| Remote control box | Available |
| Spare parts | Available |
| HMI | Touch panel or digital meters/buttons |
| Package | Plywood packing for export |
6. Electrical protections
Main Circuit Breaker
Under water pressure
Output over current
Output over voltage
Overheat
7. Main types
1000A 12V/15V
1500A 12V/15V
2000A 12V/15V
3000A 12V/15V
5000A 12V/15V
10000A 12V/15V
1000A, 3000A, 5000A, 10000A 12V/15V have in stock, deliver in 1 week.
8. R&D ability
Self developed control board
Self designed products
Self electrical engineer, mechanical design engineer, software engineer
More than 20 years power electronics engineering ability
9. Manufacture
500 power supplies per month capacity
New production line is under construction
10. Quality control
Gurantee period: 1 years
Strict quality control for the PCB board.
Passed CE certification.
Every rectifier is full load tested before shipment.
11. Packing and shipment
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