Kepco BOP72-6M

The Kepco BOP72-6M is a 400 W bipolar operational power supply engineered for precision voltage and current control across all four quadrants of the V-I plane. It sources and sinks 100% of its current rating, functioning simultaneously as both power source and load simulator. The unit delivers 0 to ±72 V DC and 0 to ±6 A DC with smooth linear control through zero without polarity switching, making it ideal for dynamic testing, arbitrary waveform synthesis, and closed-loop amplification tasks.

## Technical Specifications

• **Output Rating:** 400 W maximum, ±72 V DC, ±6 A DC
• **Closed-Loop Gains:** 7.2 V/V (voltage mode), 0.6 A/V (current mode)
• **Voltage Mode Dynamics:** 10.9 kHz bandwidth (DC to f₋₃dB), 32 µs rise/fall time (10%-90%)
• **Current Mode Dynamics:** 2.1 kHz bandwidth (DC to f₋₃dB), 155 µs rise/fall time (10%-90%)
• **Output Impedance (Voltage):** 240 µΩ ESR, 200 µH ESL
• **Output Impedance (Current):** 72 kΩ shunt resistance, 0.1 µF shunt capacitance
• **Form Factor:** Benchtop; factory-configurable for rack mounting

## Key Features

• Four-quadrant source/sink operation enables load simulation and energy absorption
• Zeroable preamplifier for external signal scaling and summing
• Full analog control via 50-terminal rear user port with all flags accessible
• Optional digital display upgrade (suffix “D”)

## Control & Integration

Multiple digital control pathways available:

• **GPIB (IEEE 488.2):** BIT 4882 (12-bit) or BIT 4886 (16-bit) talk-listen with SCPI support
• **Listen-Only GPIB:** BIT 488B (binary) or BIT 488D (hexadecimal) formats
• **Serial Bus Control:** BIT TMA-27 for long-range operation (>300 m) from IEEE 488.2, RS 232, or VXI-based hosts
• **Ethernet Control:** BOP-E Series models with web page or SCPI command interface (LabView, Telnet compatible)

## Typical Applications

Dynamic device testing, arbitrary waveform generation, battery and fuel cell emulation, motor drive simulation, and precision amplification requiring bidirectional power flow.