The 750V 100A Rectifier for Plasma Electrolytic Oxidation is a unidirectional DC power supply rated at 750 V and 100 A for plasma electrolytic oxidation (PEO/MAO) projects. The published rating defines the available DC envelope; it does not replace process calculations or establish the normal operating setpoint.
Published Rating and Electrical Boundary
| Rated DC output | 750 V DC, 100 A DC |
|---|---|
| Application | plasma electrolytic oxidation (PEO/MAO) |
| Regulation | Constant-current or constant-voltage main mode, selected for the confirmed process |
| AC input | AC 380 V or 415 V. Final phase, frequency and site conditions must be confirmed. |
This product follows Gao Hui’s low-voltage AC input, high-frequency switching and isolation, one-way DC architecture. It is not presented as an external DC-input converter, AC-output source, bidirectional or regenerative supply, or medium/high-voltage direct-input system.
Application and Selection
This page applies to high-field oxide coating with micro-discharge on a defined valve metal and electrolyte Initial current may be estimated from effective area and a process-supplied current density, but stage curves and peaks must come from the PEO process owner. Positive and any negative voltage/current limits, waveform, frequency, pulse widths, duty cycles and stage transitions require separate confirmation.
PEO/MAO is not ordinary anodizing; DC, unipolar pulse and bipolar pulse requirements cannot be inferred from the material name.
Scale-up focus: use pilot results or reliable data from the existing line, then scale by the true area, cell count and maximum production condition. Do not scale from tank volume alone.
Information Required for Selection
- PEO or MAO process name
- alloy and effective area
- electrolyte and temperature
- target coating objective
- positive voltage and current limits
- any negative output limits
- waveform and stage curve
- cooling, interlocks and batch control
Also provide the site AC voltage, phase and frequency; cable distance; daily duty; ambient conditions; cabinet location; required local or remote control; and any interface or interlock list. Gao Hui engineering can then check the practical working range against the published rating.
Configuration Boundary
The confirmed standard scope is limited to the published DC rating and stated process use. Cooling method, enclosure, control interface, ramp, timer, ampere-hour control, pulse waveform, polarity reversal, communications, ripple target and redundancy are project-specific. They are supplied only when written into the confirmed configuration and must not be inferred from a legacy title, image or category.
Frequently Asked Questions
Why can working voltage be below the rated voltage?
The rated value provides an operating envelope. The actual requirement is the loaded process voltage plus verified conductor and contact losses.
Can AC input be selected from DC current alone?
No. DC voltage and current determine output power, and the site supply, phase and frequency must also be confirmed.
Does the page guarantee a particular process result?
No. Process results also depend on chemistry, materials, geometry, preparation and the validated operating recipe.
Review related options in Anodizing Rectifiers, or contact Gao Hui with the selection data above.
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