Electric vehicle business

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LDC (LOW Voltage DC-DC Converter)

LDC is a low-voltage DC converter that consists of a DC input device, a stop value, a DC output device, etc., in a HEV/EV/FCEV vehicle, a high voltage battery, etc. It converts the accumulated electrical energy into a low voltage, charges the 12V battery, and supplies the operating power of the vehicle electric load. Power from (Main Battery Pack) It receives power and supplies 12V of power and replaces the function of the existing internal combustion engine vehicle.

Main Circuit

Protection Functions

  • Over Voltage Protection
  • Over Current Protection
  • Over Temperature Protection
  • Low Voltage Protection

CAN Interface(Protocol)

  • CAN Interface(Protocol)

Mode

  • Normal Mode, Sleep Mode, Charging Mode

Connector 사양

  • Signal connector : 5P/cnlinko
  • Input connector : 2P 40A/암페놀
  • Output terminal : 1P/Rug Type

Diagnosis Functions

  • Output voltage, current sensor, communication error

LDC General environment

항목 Spec 비고
General Information Size 291.5 x 161.5 x (H)76mm
Weight 4kg
Operating temp. -20℃ ~ 80℃
Storage temp -24℃ ~ 125℃
Dark current 1mA or less
Humidity <RH95%
EMC TBD TBD
IP IP67
Communication(Vehcle) CAN2.0A
function Protection function OVP, LVP, OCP, OTP
Input/Output Input voltage Type1: 72~99.6V (Rated 86V) @Max 30A
Type2: 120~165VDC (Rated 144V) @Max 23A
입력사양 주문선택
Output voltage/current 12.5 ~ 14.5V/ Max 86A @1.2kW
Voltage/Current accuacy(rms) <±2%(Full Scale) Voltage,Current
Volume 1.2kW
Ripple(rms) <±1%
Output rising time <10 seconds
Cooling Method Air Cooling
Maximum efficiency 94% or more
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Block Diagram

Product List

Total 2

  • Product
    Model name
    Division
    Product Description
  • MR-LDC(1.2kW)_86
    1.2kW LDC
    This product is a DC-DC converter used in electric vehicles. It converts the high voltage from the vehicle's main battery into a 14V output to charge the 12V lead-acid battery that powers the 12V low-voltage system. This type of converter is referred to as an LDC (Low Voltage DC-DC Converter).
    It is a compact 1.2kW device with an input rating of 86V and a 14VDC output specification, capable of CC (Constant Current) and CV (Constant Voltage) control, and is applicable to both general commercial vehicles and special-purpose vehicles.
  • MR-LDC(1.2kW)_144
    1.2kW LDC
    This product is a DC-DC converter used in electric vehicles. It converts the high voltage from the vehicle's main battery into a 14V output to charge the 12V lead-acid battery that powers the 12V low-voltage system. This type of converter is referred to as an LDC (Low Voltage DC-DC Converter).
    It is a compact 1.2kW device with an input rating of 144V and a 14VDC output specification, capable of CC (Constant Current) and CV (Constant Voltage) control, and is applicable to both general commercial vehicles and special-purpose vehicles.
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