Discontinued
PROGRAMMABLE DC-DC CONVERTER
High power up to 5kW
Low profile and lightweight design
- Voltage range: 6 V to 650 V
- Current: 1.5 A to 600 A
- Power: 0.8 kW to 5 kW
- Low noise switching method
SUITABLE FOR R&D OF NEXT-GENERATION ENERGY SYSTEMS SUCH AS SOLAR CELL AND SMART HOUSE
Designed for R&D of Next-Generation Energy Systems, including Solar and Smart Grids The VDD series comprises high-power, variable output DC-DC converters designed for DC input applications. These units are ideal for the research and development of next-generation energy systems and emergency backup power solutions. Typical applications include smart homes requiring bidirectional DC power flow between residential batteries and electric vehicles (EVs). The series features various digital interfaces, such as LAN and USB, enabling easy system integration.*
- Adapters will be needed additionally. And, -LGob option will be needed if it will be used under specific conditions.
FEATURES AND BENEFITS
- Compact and High Power: Delivers 0.8 kW to 5 kW output power.
- Low Noise: Utilizes a low-noise switching topology ideal for R&D environments.
- Wide Input Voltage: Supports a broad range of input voltages.
- Flexible Operation: Supports master/slave configuration for scaling power.
- High Visibility: Features large, 4-digit meters for both voltage and current, ensuring precise monitoring and easy readability.
- Enhanced Usability: Equipped with a key-lock function for safety and a speed-sensitive rotary encoder for quick and precise setting adjustments.
Models
| Model | Output | Input Voltage | |||
|---|---|---|---|---|---|
| Voltage | Current | Power | Standard | Option | |
| VDD6-133 | 0 to 6 V | 0 to 133 A | 800 W | 90 Vdc to 350 Vdc | |
| VDD6-266 | 0 to 266 A | 1600 W | 180 Vdc to 420 Vdc | ||
| VDD6-500 | 0 to 500 A | 3000 W | 250 Vdc to 350 Vdc | 350 Vdc to 420 Vdc | |
| VDD8-240 | 0 to 8 V | 0 to 240 A | 1900 W | 180 Vdc to 420 Vdc | |
| VDD8-600 | 0 to 600 A | 4800 W | 250 Vdc to 350 Vdc | 350 Vdc to 420 Vdc | |
| VDD10-90 | 0 to 10 V | 0 to 90 A | 900 W | 90 Vdc to 350 Vdc | |
| VDD10-180 | 0 to 180 A | 1800 W | 180 Vdc to 420 Vdc | ||
| VDD10-300 | 0 to 300 A | 3000 W | 250 Vdc to 350 Vdc | 350 Vdc to 420 Vdc | |
| VDD10-500 | 0 to 500 A | 5000 W | 250 Vdc to 350 Vdc | 350 Vdc to 420 Vdc | |
| VDD15-60 | 0 to 15 V | 0 to 60 A | 900 W | 90 Vdc to 350 Vdc | |
| VDD15-100 | 0 to 100 A | 1500 W | 180 Vdc to 420 Vdc | ||
| VDD15-133 | 0 to 133 A | 2000 W | 180 Vdc to 420 Vdc | ||
| VDD15-200 | 0 to 200 A | 3000 W | 250 Vdc to 350 Vdc | 350 Vdc to 420 Vdc | |
| VDD15-333 | 0 to 333 A | 5000 W | 250 Vdc to 350 Vdc | 350 Vdc to 420 Vdc | |
| VDD20-50 | 0 to 20 V | 0 to 50 A | 1000 W | 90 Vdc to 350 Vdc | |
| VDD20-100 | 0 to 100 A | 2000 W | 180 Vdc to 420 Vdc | ||
| VDD20-150 | 0 to 150 A | 3000 W | 250 Vdc to 350 Vdc | 350 Vdc to 420 Vdc | |
| VDD20-250 | 0 to 250 A | 5000 W | 250 Vdc to 350 Vdc | 350 Vdc to 420 Vdc | |
| VDD30-33 | 0 to 30 V | 0 to 33 A | 1000 W | 90 Vdc to 350 Vdc | |
| VDD30-66 | 0 to 66 A | 2000 W | 180 Vdc to 420 Vdc | ||
| VDD30-100 | 0 to 100 A | 3000 W | 250 Vdc to 350 Vdc | 350 Vdc to 420 Vdc | |
| VDD30-166 | 0 to 166 A | 5000 W | 250 Vdc to 350 Vdc | 350 Vdc to 420 Vdc | |
| VDD35-28 | 0 to 35 V | 0 to 28 A | 1000 W | 90 Vdc to 350 Vdc | |
| VDD35-57 | 0 to 57 A | 2000 W | 180 Vdc to 420 Vdc | ||
| VDD35-85 | 0 to 85 A | 3000 W | 250 Vdc to 350 Vdc | 350 Vdc to 420 Vdc | |
| VDD35-142 | 0 to 142 A | 5000 W | 250 Vdc to 350 Vdc | 350 Vdc to 420 Vdc | |
| VDD45-22 | 0 to 45 V | 0 to 22 A | 1000 W | 90 Vdc to 350 Vdc | |
| VDD45-44 | 0 to 44 A | 2000 W | 180 Vdc to 420 Vdc | ||
| VDD45-66 | 0 to 66 A | 3000 W | 250 Vdc to 350 Vdc | 350 Vdc to 420 Vdc | |
| VDD45-110 | 0 to 110 A | 5000 W | 250 Vdc to 350 Vdc | 350 Vdc to 420 Vdc | |
| VDD60-16.6 | 0 to 60 V | 0 to 16.6 A | 1000 W | 90 Vdc to 350 Vdc | |
| VDD60-33.3 | 0 to 33.3 A | 2000 W | 180 Vdc to 420 Vdc | ||
| VDD60-50 | 0 to 50 A | 3000 W | 250 Vdc to 350 Vdc | 350 Vdc to 420 Vdc | |
| VDD60-83 | 0 to 83 A | 5000 W | 250 Vdc to 350 Vdc | 350 Vdc to 420 Vdc | |
| VDD80-12.5 | 0 to 80 V | 0 to 12.5 A | 1000 W | 90 Vdc to 350 Vdc | |
| VDD80-25 | 0 to 25 A | 2000 W | 180 Vdc to 420 Vdc | ||
| VDD80-37 | 0 to 37 A | 3000 W | 250 Vdc to 350 Vdc | 350 Vdc to 420 Vdc | |
| VDD80-62 | 0 to 62 A | 5000 W | 250 Vdc to 350 Vdc | 350 Vdc to 420 Vdc | |
| VDD100-10 | 0 to 100 V | 0 to 10 A | 1000 W | 90 Vdc to 350 Vdc | |
| VDD100-20 | 0 to 20 A | 2000 W | 180 Vdc to 420 Vdc | ||
| VDD100-30 | 0 to 30 A | 3000 W | 250 Vdc to 350 Vdc | 350 Vdc to 420 Vdc | |
| VDD100-50 | 0 to 50 A | 5000 W | 250 Vdc to 350 Vdc | 350 Vdc to 420 Vdc | |
| VDD150-6.6 | 0 to 150 V | 0 to 6.6 A | 1000 W | 90 Vdc to 350 Vdc | |
| VDD150-13.3 | 0 to 13.3 A | 2000 W | 180 Vdc to 420 Vdc | ||
| VDD150-20 | 0 to 20 A | 3000 W | 250 Vdc to 350 Vdc | 350 Vdc to 420 Vdc | |
| VDD150-33 | 0 to 33 A | 5000 W | 250 Vdc to 350 Vdc | 350 Vdc to 420 Vdc | |
| VDD200-5 | 0 to 200 V | 0 to 5 A | 1000 W | 90 Vdc to 350 Vdc | |
| VDD200-10 | 0 to 10 A | 2000 W | 180 Vdc to 420 Vdc | ||
| VDD200-15 | 0 to 15 A | 3000 W | 250 Vdc to 350 Vdc | 350 Vdc to 420 Vdc | |
| VDD200-25 | 0 to 25 A | 5000 W | 250 Vdc to 350 Vdc | 350 Vdc to 420 Vdc | |
| VDD300-3.3 | 0 to 300 V | 0 to 3.3 A | 1000 W | 90 Vdc to 350 Vdc | |
| VDD300-6.6 | 0 to 6.6 A | 2000 W | 180 Vdc to 420 Vdc | ||
| VDD300-10 | 0 to 10 A | 3000 W | 250 Vdc to 350 Vdc | 350 Vdc to 420 Vdc | |
| VDD300-16.6 | 0 to 16.6 A | 5000 W | 250 Vdc to 350 Vdc | 350 Vdc to 420 Vdc | |
| VDD500-2 | 0 to 500 V | 0 to 2 A | 1000 W | 90 Vdc to 350 Vdc | |
| VDD500-4 | 0 to 4 A | 2000 W | 180 Vdc to 420 Vdc | ||
| VDD500-6 | 0 to 6 A | 3000 W | 250 Vdc to 350 Vdc | 350 Vdc to 420 Vdc | |
| VDD500-10 | 0 to 10 A | 5000 W | 250 Vdc to 350 Vdc | 350 Vdc to 420 Vdc | |
| VDD600-1.66 | 0 to 600 V | 0 to 1.66 A | 1000 W | 90 Vdc to 350 Vdc | |
| VDD600-3.3 | 0 to 3.3 A | 2000 W | 180 Vdc to 420 Vdc | ||
| VDD600-5 | 0 to 5 A | 3000 W | 250 Vdc to 350 Vdc | 350 Vdc to 420 Vdc | |
| VDD600-8.3 | 0 to 8.3 A | 5000 W | 250 Vdc to 350 Vdc | 350 Vdc to 420 Vdc | |
| VDD650-1.5 | 0 to 650 V | 0 to 1.5 A | 1000 W | 90 Vdc to 350 Vdc | |
| VDD650-3 | 0 to 3 A | 2000 W | 180 Vdc to 420 Vdc | ||
| VDD650-4.6 | 0 to 4.6 A | 3000 W | 250 Vdc to 350 Vdc | 350 Vdc to 420 Vdc | |
| VDD650-7.6 | 0 to 7.6 A | 4900 W | 250 Vdc to 350 Vdc | 350 Vdc to 420 Vdc | |
Functions
Key Lock Function
Lock all front panel operationto prevent erroneous operation.
(emergency stop by power switch is still valid.)
Dual Tracking, Multiple Outputs
Dual tracking control, which enables both positive and negative outputs simultaneously in master slave operation, is possible. Multi outputs and various versatile operations are also possible by combining the above dual tracking control and slave local mode.
Positive and negative output (+V, -V) of dual tracking control and set output voltage of slave local mode can be output simultaneously by turning on the master unit.
Dual Tracking
Multiple Outputs
Digital interface
Enable digit control via LAN/USB/RS-232C/RS-485/GPIB as well as one control with Master/Slave.
Master/slave
One-control on local in parallel is enabled up to 16 units with master/slave operation
When noisy environment is presumed, the following -LGob option (optical interface) is required.
Adapters (sold separately)
To use the digital interface, you need to prepare a digital interface adapter separately.
The following interface adapters are available according to the communication method of your controller port.
Adapter for LAN: CO-E32m
Total 16 units can be connected to one CO-E32m.
LAN cable is not provided.
Adapter for USB: CO-U32m
Total 16 units can be connected to one CO-U32m.
USB cable is not provided.
Adapter for RS-232C (9 pin): CO-MET2-9
Adapter for RS-232C (25 pin): CO-MET2-25
Adapter for RS-485 (25 pin): CO-MET4-25
[Dsub⇔Modular jack] Total 16 units can be connected.
Adapter for GPIB: CO-G32m
Total 16 units can be connected to one CO-G32m.
GPIB cable is not provided.
A two-meter cable is provided in each unit without an interface option. If you need a longer cable, please consult with our sales staff.
External Analog Remote Control
External output ON/OFF
Output can be turned ON/OFF by relay or TTL signal.
The logic of OUTPUT can be reversed.
Remote sensing
Prevents voltage drop-down (VO-VL) due to resistance (R) or deterioration of stability by contact resistance.
Remote/Local change
As for the output voltage control, output current control, the remote/local mode can be individually switched by relay or TTL signal.
Output control (Voltage, Current)
Output Monitor (Voltage, Current)
Status Output
Common is floating in the open collector output of common.
Withstand voltage 30 Vdc, sink current 5 mA or less.
Various Digital Control
| Control function | Output ON/OFF setting |
|---|---|
| Status output (fault/output/OVP/ UVL/OTP/DCF/Sense connection reversely/Interlock) | |
| Maximum 16 units (-LGob models: 32 units) digital control | |
| One control function for multiple units | |
| Write function | Output voltage setting/Output current setting, Percent mode, Voltage Current value mode |
| OVP setting/UVL setting, Percent mode, Voltage Current value mode | |
| Reading function | Output voltage reading/Output current reading, Percent mode, Voltage Current value mode |
| Output voltage setting/Output current setting, Percent mode, Voltage Current value mode | |
| OVP setting/UVL setting, Percent mode, Voltage Current value mode |
Note: The minimum value of each model is the same as the minimum display of the front panel meter.
Specifications
Options
- -LEt *1 *2
LAN Interface board
-
Enable digital control via LAN
Hub shall be required between VDD and computer when controlling multiple VDD.
- -LGob *1 *2
Optical Interface board
- This option provides complete electrical isolation via optical fiber control. It significantly improves immunity to external noise, surges, and inductive lightning, preventing erroneous operation in electrically harsh environments.
-
- -LGob: Optical interface board + optical cable 2 meters
- -LGob(Fc5): Optical interface board + optical cable 5 meters
- -LGob(Fc10): Optical interface board + optical cable 10 meters
- -LGob(Fc20): Optical interface board + optical cable 20 meters
- -LGob(Fc40): Optical interface board + optical cable 40 meters
-
Select the optional optical interface board (-LGob) when using this DC power supply under the following conditions.
- Noisy environment including factories (Example: Motors or coils are used near power supplies and loads).
- Using with high voltage floating (more than 250 V)
- Installation distance of 2 meters or more between the DC power supply and a controller such as a computer, laptop, or Programmable Logic Controller (PLC).
-
Adapters (sold separately)
An adapter is required separately, when using the Adapter.
The following adapters are available according to the connection method between PC and sequencer.Adapter for LAN: CO-E32
Total 32 units can be connected to one CO-E32.
LAN cable is not provided.
Adapter for USB: USB-OPT
Total 32 units can be connected to one USB-OPT.
USB cable is not provided.
Adapter for RS-232C (9 pin): CO-OPT2-9
Adapter for RS-232C (25 pin): CO-OPT2-25
Adapter for RS-485 (25 pin): CO-OPT4-25
Total 32 units can be connected.
Adapter for GPIB: CO-G32
Total 32 units can be connected to one CO-G32.
GPIB cable is not provided.
(B) Optical fiber cable
As for models with the -LGob option, a two-meter cable is provided in each model. If you need a longer cable, please consult us from here.
- -LUs1 *1 *2
USB interface board
-
Enable digital control via USB
USB hub shall be required between VDD and computer when controlling multiple VDD.
- -L(Mc0.5), -L(Mc0.15) *2
Communication cable length change
- Change length of CO-M cable to 0.5-meter and 0.15-meter long. (Only either can be selected.)
- -L(400V)
Input voltage 400V
- Please see models
- If you select this option, the standard digital interface and master-slave function will not be equipped. Also, please see the CO series datasheet for details of the digital interface function.
- These options cannot be selected together. Only one of each can be selected.
How to Order
When ordering, suffix the following option mark to the model number.
[Example] VDD6-133-L(Mc0.5), VDD350-18-LGob(Fc20), VDD650-7.6-LUs1(400V)
(alphabetical, input voltage order)
Dimensions
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-
VDD series Datasheet (Discontinued)
Date: 2023-7-25 rev.09
PDF (3,560 KB)
-
How to Use DC Power Supplies
Date: 2025-11-11 rev 09
PDF (1,281 KB)
Login Required
-
VDD series Datasheet (Discontinued)
Date: 2023-7-25 rev.09
PDF (3,560 KB)
-
How to Use DC Power Supplies
Date: 2025-11-11 rev 09
PDF (1,281 KB)
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