DC/DC Converter
  • DC/DC Converter
  • DC/DC Converter
  • DC/DC Converter
  • DC/DC Converter
  • DC/DC Converter

DC/DC Converter

Combining boost converter (step-up), buck converter (step-down) and bidirectional DC/DC converter for versatile voltage conversion in renewable energy and energy storage systems

  • Efficiency: ≥ 99%
  • Rated power (kW): 1.66~200kW
  • Input voltage range (Vdc): 0~2000V
  • Output voltage range (Vdc): 0~1200V
  • Voltage regulation accuracy: ±0.5%FS / ±1%FS
  • Current regulation accuracy: ±1%FS @ rated power, ± 0.5%FS @ rated power
  • Operating mode: auto switch constant voltage, constant current (CV/CC), constant current (CC), constant voltage (CV), maximum power point tracking (MPPT), MPPT with constant voltage
  • Communication interface: RS485 / CAN
  • Protection level: IP 20 / IP 20 / IP 65
  • Cooling method: air cooled / water cooled
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DC/DC converters regulate direct current by converting it from one voltage level to another, ensuring stable and efficient power transfer across different applications. They operate by storing and releasing energy through inductors and capacitors, using high-frequency switching devices such as MOSFETs or IGBTs. Depending on the configuration, they can perform step-up (boost), step-down (buck), or bidirectional conversion to support both charging and discharging in energy storage systems. Their versatility makes them indispensable in renewable energy projects, battery management systems, and smart grids where voltage stability and efficiency are essential.

Features
  • DC/DC converters reach up to 98% conversion efficiency using wide bandgap semiconductor devices such as SiC, operating at switching frequencies in the hundreds of kilohertz, well above the 90–95% range of traditional converters.
  • Support a broad voltage range, from 0 V for flow battery startup charging to 1500 V for renewable energy applications. Output voltage can be precisely controlled within ±1%.
  • Offer fast dynamic response during transitions between charging and discharging, ensuring stable frequency regulation in wind and energy storage systems.
  • Feature a modular “cluster-management” design that provides redundancy and fault tolerance. If one module fails, it automatically disconnects while others continue operating safely.
  • Include multiple protection functions, overvoltage, overcurrent, and overtemperature safeguards, along with spike absorption and snubber circuits. Support wind turbine black-start capability and extend overall service life.
  • Allow power modules to be connected in parallel for flexible capacity expansion, scaling easily from kilowatt to megawatt levels.
  • Enable bidirectional energy flow for both charging and discharging, making DC/DC converters suitable for regenerative braking in electric vehicles and power control in energy storage systems.
  • Use intelligent control algorithms such as fuzzy logic and neural networks to maintain SOC (State of Charge) balance between clusters and manage constant-current, constant-voltage, or constant-power modes.
  • Employ liquid cooling for efficient heat dissipation, providing stable operation in high-temperature environments and industrial-grade protection for demanding sites such as mining and mobile platforms.
Specifications
DC/DC Converter (Air-cooled)
Series Air-Cooled
60V Series 		Air-Cooled
900V Series 		Air-Cooled
1200V Series 		Air-Cooled
1500V Series 		Air-Cooled
2000V Series 		Air-Cooled
SIC Series
Input side/High-voltage side Efficiency (full load) ≥ 99% ≥ 99% ≥ 98% ≥ 96% ≥ 96% ≥ 96% ≥ 98%
Input voltage range (Vdc) 0–60 0–950 (900–950@18/36/54kW) 0–900 0–1200 0–1500 1100–2000 0–800
Input current range (A) 0–33/0–66/0–100 0–120/0–200/0–350 0–40 0–50/0–100/0–150 0–50 0–100/0–150 0–100/0–150 0–100 0–20/0–40
Output side/Low-Voltage side Output voltage range (Vdc) 0–60 0–950 (Vhigh×0.1< Vlow < Vhigh×0.9) 0–950 (Vhigh×0.05< Vlow <Vhigh×0.95) 0–720 (Vhigh×0.1< Vlow <Vhigh×0.9) 0–760 (Vhigh×0.05< Vlow <Vhigh×0.95) 0–1080 (Vhigh×0.1< Vlow <Vhigh×0.9) 0–1140 (Vhigh×0.05< Vlow <Vhigh×0.95) 0–1000 (Vhigh×0.1< Vlow <1000) 0–1000 (Vhigh×0.1< Vlow <1000) 0–720 (Vhigh×0.1< Vlow <Vhigh×0.9)
Rated power (kW) 1.66/3.32/5 60/120/200 15 15 20/40/60 20 40/60 40/60 80 6/12
Max. power (kW) 2002/4/6 80/140/240 20 20 30/60/100 30 60/100 60/100 100 7.5/15
Constant power voltage range (Vdc) - 500–810/600–810 500–850/600–850 600–720 600–760 700–1080 700–1140 600–100/680–1000 680–1000 500–800
Output current range (A) 0–33/0–66/0–100 0–120/0–200/0–350 0–40 0–40 0–50/0–100/0–150 0–50 0–100/0–150 0–100/0–150 0–150 0–20/0–40
Voltage regulation accuracy ±1%FS ±1%FS ±0.5%FS ±1%FS ±0.5%FS ±1%FS ±0.5%FS ±0.5%FS ±0.5%FS ±1%FS
Current regulation accuracy ±1%FS @ rated power ±1%FS @ rated power ±0.5%FS @ rated power ±1%FS @ rated power ±0.5%FS @ rated power ±1%FS @ rated power ±0.5%FS @ rated power ±0.5%FS @ rated power ±0.5%FS @ rated power ±1%FS @ rated power
Response time ≤ 100ms ≤ 100ms ≤ 100ms ≤ 5ms ≤ 100ms ≤ 5ms ≤ 100ms ≤ 100ms ≤ 100ms
Operating mode Auto switch Constant voltage/constant current (CV/CC) Constant current (CC) Constant voltage (CV) Maximum power point tracking (MPPT), MPPT with constant voltage Constant voltage/constant current (CV/CC) Constant current (CC) Constant voltage (CV) Maximum power point tracking (MPPT), MPPT with constant voltage Constant voltage/constant current (CV/CC) Constant current (CC) Constant voltage (CV) Maximum power point tracking (MPPT), MPPT with constant voltage Constant voltage/constant current (CV/CC) Constant current (CC) Constant voltage (CV) Maximum power point tracking (MPPT), MPPT with constant voltage Constant voltage/constant current (CV/CC) Constant current (CC) Constant voltage (CV) Maximum power point tracking (MPPT), MPPT with constant voltage
Communication interface RS485 Modbus RTU (isolated), 1 channel Modbus RTU (isolated), 1 channel Modbus RTU (isolated), 2 channels Modbus RTU (isolated), 2 channels Modbus RTU (isolated), 2 channels Modbus RTU (isolated), 2 channels Modbus RTU (isolated), 2 channels Modbus RTU (isolated), 2 channels Modbus RTU (isolated), 2 channels Modbus RTU (isolated), 1 channel
CAN CAN 2.0A/B (isolated), 1 channel CAN 2.0A/B (isolated), 2 channels CAN 2.0A/B (isolated), 1 channel BMS compatible CAN 2.0A/B (isolated), 2 channels BMS compatible CAN 2.0A/B (isolated), 1 channel BMS compatible CAN 2.0A/B (isolated), 2 channels BMS compatible CAN 2.0A/B (isolated), 1 channel BMS compatible CAN 2.0A/B (isolated), 2 channels BMS compatible CAN 2.0A/B (isolated), 2 channels BMS compatible CAN 2.0A/B (isolated), 1 channel BMS compatible
Protection High-voltage side Over-voltage, under-voltage Over-voltage, under-voltage, reverse polarity Over-voltage, under-voltage, reverse polarity Over-voltage, under-voltage, reverse polarity Over-voltage, under-voltage, reverse polarity Over-voltage, under-voltage, reverse polarity Over-voltage, under-voltage, reverse polarity
Low-Voltage side Over-voltage, under-voltage, over-current Over-voltage, under-voltage, reverse polarity, over-current Over-voltage, under-voltage, reverse polarity, over-current, short-circuit Over-voltage, under-voltage, reverse polarity, over-current, short-circuit Over-voltage, under-voltage, reverse polarity, over-current, short-circuit Over-voltage, under-voltage, reverse polarity, over-current, short-circuit Over-voltage, under-voltage, reverse polarity, over-current
Other protections Over-temperature protection with automatic recovery after fault removal Over-temperature protection with automatic recovery after fault removal Over-temperature protection with automatic recovery after fault removal Over-temperature protection with automatic recovery after fault removal
General Protection level IP 20 IP 54 IP 20 IP 20
Installation method Left and right mounting ears M8 screws for radiator mounting M8 screws for radiator mounting Left and right mounting ears
Operating temperature -20℃ to +45℃ (derating required above 45°C) -20℃ to +45℃ (derating required above 45°C) -20℃ to +45℃ (derating required above 45°C) -20℃ to +45℃ (derating required above 45°C)
Operating environment Relative humidity: < 95%RH non-condensing Altitude: < 2000m (for above 2000m, usage should be derated according to GB/T3859.2) Relative humidity: < 95%RH non-condensing Altitude: < 2000m (for above 2000m, usage should be derated according to GB/T3859.2) Relative humidity: < 95%RH non-condensing Altitude: < 2000m (for above 2000m, usage should be derated according to GB/T3859.2) Relative humidity: < 95%RH non-condensing Altitude: < 2000m (for above 2000m, usage should be derated according to GB/T3859.2)
Noise level < 45dB at 1m distance under rated operation < 45dB at 1m distance under rated operation < 45dB at 1m distance under rated operation < 45dB at 1m distance under rated operation
Dimensions (D×W×H) 300×100×88mm 500×250×154mm
500×363×154mm
500×543×154mm (without mounting ear) 		600×363×154mm 600/543/154 mm (mounting ear) 390×185×270mm 390×185×270mm 600×363×154mm 600×543×154mm 600×363×154mm 552×445×176mm 600×543×154mm 600×685×198mm 255×183×110mm
Weight 2/3/4 20/36/54kg 21/37kg 25kg 25kg 21/37/55kg 21kg 37/55kg 37/55kg 60kg 3.4/4kg
DC/DC Converter (Water-Cooled)
Series Water-Cooled 60V Series Water-Cooled 900V Series Water-Cooled 1200V Series Water-Cooled SIC Series
Input side/High-voltage side Efficiency (full load) ≥ 99% ≥ 98% ≥ 96% ≥ 98% ≥ 98%
Input voltage range (Vdc) 0–60 0–900 0–1200 0–150
Input current range (A) 0–33/0–66/0–100 0–150/0–200 0–150/0–200/0–360 0–100/0–200 0–100/0–200 0–360 0–250
Output side/Low-Voltage side Output voltage range (Vdc) 0–60 0–720 0–760 0–1080 0–1140 0–1140 0–135
Vhigh×0.1< Vlow <Vhigh×0.9 Vhigh×0.05< Vlow <Vhigh×0.95 Vhigh×0.1< Vlow <Vhigh×0.9 Vhigh×0.05< Vlow <Vhigh×0.95 Vhigh×0.05< Vlow <Vhigh×0.95 Vhigh×0.1< Vlow <Vhigh×0.9
Rated power (kW) 1.66/3.32/5 40/60 40/60/150 40/60 40/60 170 15
Max. power (kW) 2002/4/6 60/100 60/100/200 60/100 60/100 250 20
Constant power voltage range (Vdc) - 500–720/600–720 500–760/600–760/650–760 700–1080/600–1080 700–1140/600–1140 900–1140 80–135
Output current range (A) 0–33/0–66/0–100 0–150/0–200 0–150/0–200/0–360 0–100/0–200 0–100/0–200 0–360 0–250
Voltage regulation accuracy ±1%FS ±1%FS ±0.5%FS ±1%FS ±0.5%FS ±0.5%FS ±0.5%FS
Current regulation accuracy ±1%FS @ rated power ±1%FS @ rated power ±0.5%FS @ rated power ±1%FS @ rated power ±0.5%FS @ rated power ±0.5%FS @ rated power ±0.5%FS @ rated power
Response time ≤ 100ms ≤ 100ms ≤ 5ms ≤ 100ms ≤ 5ms ≤ 5ms ≤ 5ms
Operating mode Auto switch Constant voltage/constant current (CV/CC) Constant current (CC) Constant voltage (CV) Maximum power point tracking (MPPT), MPPT with constant voltage Constant voltage/constant current (CV/CC) Constant current (CC) Constant voltage (CV) Maximum power point tracking (MPPT), MPPT with constant voltage Constant voltage/constant current (CV/CC) Constant current (CC) Constant voltage (CV) Maximum power point tracking (MPPT), MPPT with constant voltage Constant voltage/constant current (CV/CC) Constant current (CC) Constant voltage (CV) Maximum power point tracking (MPPT), MPPT with constant voltage
Communication interface RS 485 Modbus RTU (isolated), 1 channel Modbus RTU (isolated), 2 channels Modbus RTU (isolated), 2 channels Modbus RTU (isolated), 2 channels Modbus RTU (isolated), 2 channels Modbus RTU (isolated), 2 channels Modbus RTU (isolated), 2 channels
CAN CAN 2.0A/B (isolated), 1 channel CAN 2.0A/B (isolated), 1 channel BMS compatible CAN 2.0A/B (isolated), 2 channels BMS compatible CAN 2.0A/B (isolated), 1 channel BMS compatible CAN 2.0A/B (isolated), 2 channels BMS compatible CAN 2.0A/B (isolated), 2 channels BMS compatible CAN 2.0A/B (isolated), 2 channels BMS compatible
Protection High-voltage side Over-voltage, under-voltage Over-voltage, under-voltage, reverse polarity Over-voltage, under-voltage, reverse polarity Over-voltage, under-voltage, reverse polarity
Low-Voltage side Over-voltage, under-voltage, over-current Over-voltage, under-voltage, reverse polarity, over-current, short-circuit Over-voltage, under-voltage, reverse polarity, over-current, short-circuit Over-voltage, under-voltage, reverse polarity, over-current, short-circuit
Other protections Over-temperature protection with automatic recovery after fault removal Over-temperature protection with automatic recovery after fault removal Over-temperature protection with automatic recovery after fault removal Over-temperature protection with automatic recovery after fault removal
General Protection level IP 65 IP 65 IP 65 IP 65
Installation method Fixed on both left and right sides at bottom using mounting brackets Fixed on both left and right sides at bottom using mounting brackets Fixed on both left and right sides at bottom using mounting brackets Left and right mounting ears
Operating temperature Inlet water temperature: < 30°C
Outlet water temperature: < 80°C 		Inlet water temperature: <30°C
Outlet water temperature:< 80°C 		Inlet water temperature:< 30°C
Outlet water temperature:< 80°C 		Inlet water temperature:< 30°C
Outlet water temperature:< 80°C
Operating environment Flow rate: ≥5L/min
Flow resistance: < 15kPa 		Flow rate: ≥15L/min
Flow resistance:< 15kPa 		Flow rate: ≥15L/min
Flow resistance: < 15kPa 		Flow rate: ≥15L/min
Flow resistance: < 15kPa
Noise level < 45dB at 1m distance under rated operation < 45dB at 1m distance under rated operation < 45dB at 1m distance under rated operation < 45dB at 1m distance under rated operation
Dimensions (D×W×H) 300×100×88mm
300×165×88mm
300×200×88mm 		460×400×200mm 460×400×200mm 500×740×240mm 460×400×200mm 460×400×200mm 500×740×240mm 450×300×132mm
Weight 4/5/6 45/55 45/55/80 45/55 45/55 80 10
Applications
  • AC/DC MicrogridsAC/DC Microgrids
  • Wind and Solar Energy StorageWind and Solar Energy Storage
  • Substation Backup Power and Mobile Power Supply UnitsSubstation Backup Power and Mobile Power Supply Units
  • Charge and Discharge Systems for Lithium and Lead-Acid BatteriesCharge and Discharge Systems for Lithium and Lead-Acid Batteries
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The recommended setup is a combination of DC/DC Converter and PCS (Power Conversion System). The DC/DC Converter adjusts the variable voltage of battery packs (for example, from 200V–800V to a stable 750V) and enables bidirectional charge–discharge operation. The PCS then converts DC into grid-compatible AC (such as 380V or 10kV), allowing smooth interaction between the storage system and the grid. This setup supports daytime power supply and nighttime recharging, helping reduce electricity costs in oilfield operations.

They regulate voltage precisely across multiple battery clusters, maintaining system stability and preventing energy loss during conversion. Combined with PCS units, DC/DC converters enhance power quality, improve overall efficiency, and ensure reliable grid response during peak demand.