The Kepco BOP72-6D is a 400-watt bipolar operational power supply engineered for four-quadrant operation with simultaneous sourcing and sinking capability. It delivers ±72 V and ±6 A with high-speed, low-noise performance and continuous linear control through zero without polarity switching. Unlike general-purpose supplies, the BOP72-6D functions as a high-speed power operational amplifier with minimal output capacitance, optimizing transient response for demanding test and simulation environments.
## Technical Specifications
• **Output Power:** 400 W
• **DC Output Voltage Range:** 0 to ±72 V
• **DC Output Current Range:** 0 to ±6 A
• **Output Impedance (Voltage Mode):** 240 µΩ series resistance, 200 µH series inductance
• **Output Impedance (Current Mode):** 72 kΩ shunt resistance, 0.1 µF shunt capacitance
• **Closed Loop Gain (Voltage Channel):** 7.2 V/V
• **Closed Loop Gain (Current Channel):** 0.6 A/V
• **Bandwidth (Voltage Mode):** 10.9 kHz
• **Rise/Fall Time (Voltage Mode):** 32 µs
• **Metering:** Digital meters standard (“D” suffix)
## Key Features
• Automatic crossover between voltage and current limits with independent control circuits
• All controls and flag signals routed to 50-terminal user port at rear panel
• Zeroable preamplifier for scaling and summing external signals
• Smooth zero-crossing transition with no dead band or polarity reversal
• Four-quadrant operation for bidirectional power flow
## Load Optimization
The BOP72-6D is optimized for resistive loads. Capacitive loads exceeding 0.1 µF may require stability adjustment through increased feedback capacitance. Modified versions with inductive load optimization (up to 1 H) are available as alternatives to the standard configuration.
## Typical Applications
High-speed test systems, dynamic load simulation, transient response measurement, and precision voltage/current control requiring sub-microsecond settling.
