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RIKEN power supply products and detailed technical analysis of the three major series (HMP/SMP/LPS), covering core features and application scenarios:
High reliability
Industrial-grade design (-40°C to 85°C wide temperature range)
MTBF (mean time between failures) exceeds 100,000 hours
Full series comes standard with multiple protections for overvoltage, overcurrent, and overheating
Precise Control
Voltage/current resolution up to μV/μA level
Low ripple noise (typical value < 1 mVrms)
Supports remote sensing (Remote Sense) for line loss compensation
Modular Expansion
Master-slave parallel connection for power multiplication (HMP series supports parallel connection up to 1,000 A)
Standard digital interfaces: LAN/USB/GPIB, optional CAN or RS485
Industry-Specific Customization
High-voltage insulation (LPS series >60kV isolation)
Electromagnetic interference (EMI) resistant design (compliant with IEC 61326 standards)
1. HMP Series: Kilovolt-level high-current power supply
Core Parameters
Current range: 500A to 30kA (expandable via parallel connection)
Voltage range: 5V to 100V (low-voltage high-current architecture)
Ripple: <0.1% + 10mV (at full load)
Key Technologies
Multi-phase parallel technology: Supports parallel connection of up to 32 units, with current imbalance <1%
Active PFC: Power factor >0.99, adaptable to industrial grid fluctuations
Copper busbar direct connection design: Reduces contact losses (contact resistance <0.1mΩ)
Typical Applications
New energy battery pack testing (charge/discharge simulation)
Nuclear magnetic resonance superconducting magnet excitation
Electrolysis/electroplating industrial production lines
2. SMP Series: Ultra-high Precision Power Supply
Core Parameters
Accuracy Grade: 16-bit DAC/ADC (voltage setting resolution 1 μV)
Temperature Drift: ±2 ppm/°C (in constant temperature mode)
Noise Level: <3 μVrms (1 Hz to 100 kHz bandwidth)
Key Technologies
Low-Temperature Drift Reference Source: Utilizes LTZ1000 chip-level voltage reference
Four-Wire Kelvin Connection: Eliminates voltage drop in measurement cables
Automatic Range Switching: Full-range linearity error <0.001%
Typical Applications
Semiconductor Wafer Testing (ATE System Integration)
Metrology calibration laboratory standard source
Photon detector bias power supply
3. LPS Series: High-voltage special-purpose power supply
Core Parameters
Voltage range: 1 kV to 120 kV (negative voltage models support -150 kV)
Current Capacity: 1mA~10A (adjustable in segments)
Insulation Strength: Input/output isolation >60kV DC
Key Technologies
Oil-immersed transformer: Suppresses partial discharge, ensuring high-voltage stability
Segmented resistive voltage divider: Achieves 0.01% voltage monitoring accuracy
SF gas insulation structure (models above 120kV)
Typical Applications
X-ray tube anode power supply
Electrostatic spraying/dust removal equipment
Particle accelerator electrode drive
Selection Comparison Table
Features HMP Series SMP Series LPS Series
Core Advantages KVA-level current expansion μV-level accuracy 120kV high-voltage output
Load Regulation Rate 0.01% + 2mA 0.001% + 0.1μA 0.02% + 5 mV
Key Interfaces 500 A copper busbar terminals Four-wire BNC connectors SHV high-voltage connectors
Typical Industries Heavy Industry/New Energy Research/Semiconductor Medical/Military
Technical Evolution Direction
Intelligence: Integration of AI algorithms for fault prediction (e.g., HMP-9000 series)
High-Frequency: GaN device application (SMP new platform switch frequency up to 2 MHz)
High-voltage integration: LPS-X series achieves 120kV/10A solid-state modulator
RIKEN covers 90% of industrial high-end applications through its three series: HMP (high current), SMP (ultra-precision), and LPS (high voltage). Its modular expandability and ability to accommodate extreme parameters at the μV/kV level make it the preferred power solution for cutting-edge fields such as particle accelerators and semiconductor manufacturing.
