Kepco BOP72-1.5M

The Kepco BOP72-1.5M is a 100W bipolar operational power supply engineered for precision voltage and current control in dynamic test and simulation environments. Unlike general-purpose supplies, this high-speed programmable operational amplifier delivers true four-quadrant operation—functioning simultaneously as source and sink. It commands ±72V across ±1.5A with exceptional regulation: voltage stability below 1.0 mV and current regulation tighter than 10 nA from no-load to full-load conditions.

## Technical Specifications

**Output Performance**
• DC output voltage: ±72V
• DC output current: ±1.5A (100% sink capability)
• Voltage regulation (no-load to full-load): <1.0 mV
• Current regulation (no-load to full-load): 35,000 V/V
• Voltage ripple and noise: <0.01% of output
• Current ripple and noise: <0.05% of output or 3 mV (whichever is greater)

**Dynamic Response**
• Bandwidth (fast response): 13 kHz; (slow response): 0.6 kHz
• Slew rate (fast): 4.8 V/µsec; (slow): 0.7 V/µsec
• Programming time constant (fast): 12 µsec; (slow): 250 µsec
• Transient recovery on step load change: 50 µsec (fast) / 500 µsec (slow)
• Large-signal frequency response (fast): 25 kHz; (slow): 1 kHz

**Stability & Drift**
• 8-hour drift: <0.1 mV voltage, <50 nA current
• Temperature coefficient: <0.08 mV/°C voltage, <50 nA/°C current
• Output impedance—voltage mode: 20 µH series inductance
• Output impedance—current mode: 0.17 µF shunt capacitance

## Key Features

• Selectable fast and slow response modes for diverse load conditions
• Internal current sensing limited to ~110% of rated current (fixed, non-adjustable)
• ±6.2V ±5% references (1 mA) for offsetting and biasing
• 50-terminal user port providing full access to controls and flag signals
• Bench or rack-mountable form factor

## Typical Applications

Optimal for resistive loads in test automation and dynamic simulation. Capacitive loads exceeding 0.1 µF require increased feedback capacitance or special user-port terminals to prevent oscillation. Inductive loads benefit from series RC networks (100–500 Ω resistor with 0.1–0.5 µF capacitor) or optimized special terminals for low-frequency stability.

## Compatibility & Integration

This instrument is not a general-purpose supply and lacks built-in output capacitors for noise filtering. It integrates through the 50-terminal user port, providing direct access to all control functions and status flags for system integration.