Heavy Duty IGBT Rectifier 12V 50A Gold Plating Power Supply GAOHUI

Executive Summary
GAOHUI engineers a true industrial high frequency rectifier factory solution for precious metal deposition. This 12V 50A unit replaces unreliable, low-efficiency SCR units with switch-mode IGBT technology designed for 24/7 production environments. It delivers ripple-free DC current essential for achieving consistent gold plate density and eliminating burning at high current densities. This is not a hobbyist bench supply; it is a production-grade workhorse for jewelry lines and connector finishing operations.
Part 1 Key Features & Engineering Highlights
Our topology uses advanced soft-switching IGBT modules, achieving over 90% efficiency at full load. The compact forced-air cooling system allows for a 50% reduction in chassis volume compared to a conventional thyristor unit. The digital control loop holds output within ±0.5% of setpoint, even with AC line fluctuations of ±15%. The output bus bars are pure copper, plated for corrosion resistance in acidic plating baths.
Part 2 Technical Specifications Table
| Parameter | Specification | Unit |
| :— | :— | :— |
| Input Voltage | 380 VAC ± 15% (3-Phase) | V |
| Output Voltage | 0 – 12 | V (DC) |
| Output Current | 0 – 50 | A (DC) |
| Regulation Mode | Constant Current / Constant Voltage | – |
| Ripple | 89% @ Full Load | – |
| Cooling | Forced Air (Controlled Fan) | – |
| Display | Digital LED (Volt / Ampere / Timer) | – |
Part 3 Advanced Built-in Protection Systems
We protect your investment with a multi-layered safety architecture. The unit includes electronic over-current limiting, automatic shutdown upon over-temperature (heatsink sensor), and primary-side MOV surge suppression. A fast-acting magnetic circuit breaker replaces fragile glass fuses. The system also detects short circuits on the output bus and recovers automatically once the fault is cleared, minimizing downtime in the plating line.
Part 4 Target Industrial Applications
This model is precision-tuned for heavy-duty DC power supply price performance in rack plating applications. Primary uses include gold strike and hard gold plating on electronic connectors and PCB edge contacts. It also supports bright nickel plating and selective spot plating on jewelry components. The low ripple ensures a mirror-like finish on precious metal deposits.
Part 5 Customization and Tailored Engineering Services
GAOHUI offers a standard range of custom current voltage rectifier solutions. Contact our IGBT rectifier manufacturer engineering team for modifications: Output current from 1A to 100,000A, Output voltage from 1V to 1000V, Input: AC (single or three phase), Output: DC only.
Enhance your process with optional modules:
– Process Timer (Real-time countdown with end-of-cycle alarm)
– Multi-Stage Profile Control (Up to 20-step current/time ramp for pulse plating)
– Ampere-Minute Integrator (Precise metal thickness control)
– Automatic Reverse Polarity (Periodic reverse for deburring and leveling)
– Soft-Start (Ramp time user adjustable from 1 to 99 seconds)
Integrate into your automation system via RS485 Modbus RTU, Ethernet, or 4-20mA analog interface. For pulse applications, the unit can accept an external trigger for pulse frequencies from 1Hz to 3000Hz (duty cycle adjustable).