HIGH VOLTAGE BIPOLAR AMPLIFIER
High Voltage of 1000 V, Fast Response of 10 kHz
- Voltage Range: ±0.5 kV, ±1 kV
- Current: 50 to 200 mA
- Frequency Bandwidth:
DC to 10 kHz (at CC mode) - High-speed Response
High Voltage/Fast Response Four-Quadrant Bipolar Amplifier
The DOC series is a high-voltage, four-quadrant bipolar amplifier offering output ranges of ±500 V and ±1000 V. It features adjustable voltage and current limits to protect sensitive loads from excessive stress. Output terminals located on the front panel allow for easy access and integration.
FEATURES AND BENEFITS
- High-voltage output up to ±1000 V
- Compact, high voltage, and high power design
- Four-quadrant output (Source and Sink capability)
- Selectable operation modes: Constant Voltage (CV) and Constant Current (CC)
- Universal AC input supported
- High-speed response up to 10 kHz
- Features a DC bias function (DC offset voltage/current setting)
Models
| Model | Output | Frequency bandwidth (-3 dB) | ||
|---|---|---|---|---|
| Voltage | Current | CV | CC | |
| DOC500-0.1 | -500 to +500 V | 0 to 100 mA | DC to 10 kHz | DC to 5 kHz |
| DOC500-0.2 | -500 to +500 V | 0 to 200 mA | DC to 10 kHz | DC to 5 kHz |
| DOC1000-0.05 | -1000 to +1000 V | 0 to 50 mA | DC to 10 kHz | DC to 5 kHz |
| DOC1000-0.1 | -1000 to +1000 V | 0 to 100 mA | DC to 10 kHz | DC to 5 kHz |
Specifications
- Input voltage
- 85 to 264 Vac, 50/60 Hz, Single-phase
- Output control
-
[External control signal] Vcon-in, Input voltage -10 to +10 V
[Front panel] CV/CC switching, DC bias: 10-turn potentiometer with -100% to +100% setting
Options
- -LN
-
Automatic Output Recovery
This option retains the output state when recovering from an input power interruption, such as toggling the AC power switch or a power failure. This eliminates the need to manually cycle the OUTPUT switch to reset protection.
Caution: If the unit is powered on while the OUTPUT switch is set to ON, the high-voltage output will be active immediately.
How to Order
When placing an order, please add the option code "-LN" after the model name.
[Example] DOC1000-0.1-LN
Accessories
- Function Generator
-
- AC input cable
-
* Please use appropriate AC cable.Standard CABLE TYPE1 
125 V/10 A 2.5 meters
Fixed lengthSold separately CABLE TYPE3 
250 V/10 A 2.5 meters
Fixed lengthSold separately CABLE TYPE4 
250 V/10 A 2.5 meters
Fixed length
Dimensions
Tech Notes
Capacitive Load
When the capacitive load exceeds 100 pF (including stray capacitance of the output wire), output resonance may occur. To prevent this, install a high-voltage resistor of 100 Ω (at 0.1 μF) to 1000 Ω (at 1000 pF) in series with the output. Please note that the frequency bandwidth is limited when driving a capacitive load, as shown in the formula on the right.
In addition, utilizing the amplifier for corona discharge applications may cause current flow exceeding the rating, potentially damaging the unit. In such cases, as with capacitive loads, please install an output limiting resistor.
* Continuous high-frequency input causing high internal loss may damage the amplifier. Please operate within the specified ratings.
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-
DOC series Datasheet
Date: 2025-07-03 rev 13
PDF (1,121 KB)
-
Bipolar Power Supplies Selection Guide Via External Signal input
Date: 2025-06-30 rev 08
PDF (4,774 KB)
-
Bipolar Power Supplies/Amplifiers Selection Guide
Date: 2023-10-17 rev.03
PDF (6,310 KB)
-
DOC series Instruction Manual
Last updated: December 27, 2019 rev.0.1
PDF (527 KB)
Login Required
-
DOC series Datasheet
Date: 2025-07-03 rev 13
PDF (1,121 KB)
-
Bipolar Power Supplies Selection Guide Via External Signal input
Date: 2025-06-30 rev 08
PDF (4,774 KB)
-
Bipolar Power Supplies/Amplifiers Selection Guide
Date: 2023-10-17 rev.03
PDF (6,310 KB)
-
DOC series Instruction Manual
Last updated: December 27, 2019 rev.0.1
PDF (527 KB)
On this website, we provide only the latest versions of information and instruction manuals for our products. Therefore, the newest versions of manuals on the website may differ from those that came with products you purchased in the past.
