Discontinued
High-Performance Bipolar Power Supplies Optimized for Electromagnets
High stability, High accuracy, Low ripple noise
High-performance bipolar power supplies for exclusive use of the electromagnet
The DOD series consists of ultra-low noise bipolar power supplies designed specifically for driving electromagnets. From the wide product line（the range of output current ±10 A to ±100 A), you can choose the most suitable model for the characteristics of your electromagnet.
Despite their compact footprint, these units feature a symmetrical internal circuit design that significantly reduces common-mode noise. This ensures the high stability required for precision magnetic field generation.
DOD series is the most suitable power supply for an electromagnet as a high-stability and low-noise current supply source.
Features
- Wide Lineup
- Models are available with output voltages ranging from ±10 V to ±120 V, allowing you to select the ideal configuration for your requirements.
- Digital Meters
- The front panel features 3.5-digit digital meters for monitoring DC output voltage and current.
- Compact and Lightweight
- Designed for space efficiency, the DOD series features a compact footprint ideal for system integration.
- Comprehensive Protection
- Standard protection features include overvoltage (OVP), overcurrent (OCP), output short circuit, fan failure, and power failure protection.
- Digital Control
- Remote control via LAN (Ethernet) is supported.
Applications
- Electromagnetic power supply for accelerators
Models
Please feel free to ask us about the specifications except the list below.
| Model | Output | Input | |||||
|---|---|---|---|---|---|---|---|
| Voltage [V] | Current [A] | Power [W] | Standard | -L(400V) option | |||
| Voltage | Current (@200V) | Voltage | Current (@400V) | ||||
| DOD10-100 | ±10 | ±100 | 1000 |
AC200 V to 240 V ±10% 3-phase |
6 A typ |
AC400 V ±10% 3-phase |
3 A typ |
| DOD20-30 | ±20 | ±30 | 600 | 5 A typ | |||
| DOD40-30 | ±40 | ±30 | 1200 | 6 A typ | |||
| DOD60-20 | ±60 | ±20 | 1200 | ||||
| DOD80-10 | ±80 | ±10 | 800 | ||||
| DOD120-20 | ±120 | ±20 | 2400 | 12 A typ | 6 A typ | ||
Functions
About protection function
- OVP (Overvoltage protection)
- Output voltage is limited not to exceed approx. 120% of the rated voltage in an emergency case, thus protecting the load.
- OCP (Overcurrent protection)
- Output current is limited not to exceed approx. 120% of the rated current in an overload case, thus protecting the power supply and load.
Explanation of functions
Front
Rear
- Emergency stop button
- OUTPUT ON switch
- OUTPUT OFF switch
- Output voltage/current meter
- "Local" button
- "Remote" button (control via Ethernet)
- Button for setting output current
- LED for displaying the state of power receiving
- POWER switch
- Terminal for monitoring output current
- Icon-in terminal
- LAN (Ethernet) connector
- Output terminal
- Terminal for status signal and interlock
- Terminal for monitoring output voltage
- Terminal for monitoring the preset value of output current
- Terminal 2 for monitoring output current
- AC input terminal
Specifications
Options
-L(400V)
For the change of input voltage and current.
-LTc
Temp. stability of output current; 5 ppm/℃
-LEp
Control by EPICS
(Experimental Physics and Industrial Control System)
How to order
To order, please add the above option number to the model number.[Example] DOD10-100-LEpTc (Alphabetical order)
Dimensions
Tech Notes
Capacitive Load
When driving a capacitive load exceeding 100 pF (including stray capacitance from output wiring), output resonance may occur. In such cases, insert a high-voltage resistor in series with the output (e.g., 100 Ω at 0.1 μF to 1000 Ω at 1000 pF). Note that utilizing an output resistor will limit the frequency bandwidth, as shown in the accompanying figure.
Warning regarding Corona Discharge
In applications involving corona discharge, currents exceeding the rated value may flow, potentially damaging the amplifier. Always install an output limiting resistor to restrict current flow within safe limits.
* Avoid continuous input of high-frequency signals that exceed the amplifier's response capabilities, as increased internal loss may cause damage.
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DOD series Datasheet
PDF（540KB）
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DOD series Datasheet
PDF（540KB）
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