Executive Summary
This technical rectifier is engineered for high-purity silver bath electrochemical processes where current density stability directly dictates deposit quality. Unlike generic switching units, our IGBT topology delivers ripple-free DC output critical for precision cyanide silver electroforming. Designed for 24/7 heavy-duty cycles, this unit replaces less efficient silicon-controlled rectifiers (SCRs) while maintaining superior waveform fidelity for electrical contact plating applications.
Part 1 Key Features & Engineering Highlights
1. High-Speed IGBT Switching
Our custom-designed Insulated Gate Bipolar Transistor modules operate at 20kHz switching frequency, enabling real-time voltage compensation under dynamic load conditions in silver electroplating baths.
2. Current Ripple Suppression <3%
Achieving ripple factors below 3% RMS ensures uniform grain structure deposition, eliminating nodule formation on electrical contact plating surfaces.
3. Dual-Loop PID Control
Separate control for current (CC) and voltage (CV) modes with automatic cross-over prevents overcurrent during cold bath startup in heavy-duty DC power supply applications.
4. Remote Control Integration
Standard RJ45 port for wired remote pendant with digital display and soft-start function allows operator positioning away from caustic plating solutions.
Part 2 Technical Specifications Table
| Model | GR-12V100AGH |
| Output Voltage | 0 – 12V DC (continuously adjustable) |
| Output Current | 0 – 100A DC (rated 100A at 40°C ambient) |
| Input Power | 3-Phase 380V AC ±15% / 50-60Hz |
| Efficiency | >92% at full load (IGBT bridge) |
| Protection Index | IP21 (indoor installation, industrial use) |
| Cooling Method | Forced air cooling with redundant fans |
| Waveform | Pure DC, ripple <3% rated output |
| Dimensions (LxWxH mm) | 450 x 320 x 250 |
| Weight | 28 kg (net) |
Part 3 Advanced Built-in Protection Systems
Autorecovery Overtemperature Shutdown: Prevents silicon junction failure at 85°C heat sink temperature.
Instantaneous Overcurrent Trip: Responds within 2 microseconds to short circuits during high-purity silver bath immersion.
Phase Loss Detection: Automatically cuts output if input three-phase power becomes unbalanced beyond 15%.
Voltage Transient Suppression: Metal oxide varistors clamp incoming spikes up to 6kV for industrial high frequency rectifier factory environments.
Part 4 Target Industrial Applications
This rectifier system excels in precision cyanide silver electroforming where current interruption would cause catastrophic delamination. Specific applications include:
– High-purity silver bath deposition for decorative eyewear frames
– Electrical contact plating on copper alloy substrates requiring 8-12µm silver layers
– Precious metal recovery from spent cyanide silver electrolyte solutions
– Laboratory-scale production of thick silver coatings for conductive elastomer components
Part 5 Customization and Tailored Engineering Services
Our factory supports full parametric customization from 1V-1000V, 1A-100,000A with single-phase or three-phase input options. Standard modifications include:
Process Timer Module: Precisely controls deposition duration for batch silver plating repeatability.
Multi-Stage Profile Control: Up to 8 programmable segments with ramping, soaking, and pulsing stages.
Ampere-Minute Integrator: Displays total charge passed for bath replenishment calculations.
Automatic Reverse Polarity: User-configurable periodic reversal (0.1-999 seconds) to improve throwing power in high-aspect-ratio contacts.
RS485 Modbus RTU: Full supervisory control with addressable configuration for multi-rectifier production lines.
Ethernet TCP/IP: Web-based monitoring dashboard for heavy-duty DC power supply price comparison across installations.
4-20mA Analog Control: Isolated current loop for PLC integration without ground loops.
Pulse Functions: Adjustable frequency 1-3000Hz, duty cycle 1-99% for nanostructured silver deposits.
Contact our engineering team directly for IGBT rectifier manufacturer support on custom current voltage rectifier configurations requiring custom current voltage rectifier designs for specialized electroforming processes.






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