The Kikusui PAD35 is a variable DC regulated power supply engineered for research, development, industrial testing, and manufacturing applications. This benchtop/rack-mountable unit delivers 0–35 VDC output with selectable current ratings from 5 A to 200 A, depending on model. It operates in constant voltage (CV) and constant current (CC) modes with thyristor preregulation and power transistor series regulation, yielding low harmonic distortion and high efficiency. Input options include 120 VAC ±10% (50/60 Hz) or dual-voltage 120/240 VAC ±10% configurations. The PAD35 achieves line regulation of 0.005% and load regulation of 0.005%, with exceptional temperature stability at 50 ppm/°C and superior aging drift characteristics. A wide-band error amplifier enables fast transient response and tight frequency control. The choke input circuit reduces AC line waveform distortion and improves power factor, particularly at low output voltages. Front-panel voltage adjustment spans 0 V to rated output via 10-turn potentiometer; constant current uses coarse and fine adjustment knobs. Standard overvoltage protection (OVP) is adjustable from the front panel, with optional high-speed thyristor crowbar protection available for narrow-tolerance loads. Integrated overcurrent detection, overheating protection, and thermal management via forced air cooling safeguard the supply and connected equipment. Low ripple and noise output ensures clean power delivery to sensitive devices. Japanese manufacturing.
## Technical Specifications
• **Output Voltage:** 0–35 VDC
• **Output Current:** 5 A, 10 A, 20 A, 30 A, 50 A, 60 A, 100 A, 200 A (model-dependent)
• **Input Voltage:** 120 VAC ±10% or 120/240 VAC ±10%, 50/60 Hz (selectable)
• **Line Regulation:** 0.005% (10% input variation)
• **Load Regulation:** 0.005%
• **Temperature Coefficient:** 50 ppm/°C
• **Topology:** Constant voltage/constant current with thyristor preregulation and power transistor series regulation
• **Cooling:** Forced air
## Key Features
• Finely adjustable 0–35 VDC output (10-turn potentiometer)
• Dual-mode constant current with coarse/fine control
• Fast transient response via wide-band error amplifier
• Low harmonic distortion and reduced AC line waveform distortion (choke input system)
• Improved power factor at low output voltages
• Adjustable front-panel overvoltage protection with optional thyristor crowbar circuit
• Overcurrent and overheating protection with internal voltage, current, and temperature detection
• Low ripple and noise output
## Typical Applications
• Research and development testing
• Industrial manufacturing and process control
• Device characterization and burn-in
• Load simulation and validation
• Sensitive equipment powering
## Compatibility & Integration
Benchtop and rack-mountable configurations available. PAD-L and PAD-LP series platforms. 50/60 Hz input operation. Selectable input voltage options accommodate regional power standards.
