Representative imageConstant Current Power Supply (CCPS)
A constant-current power supply (CCPS) — also called a capacitor-charging power supply — is an IGBT-based high-voltage source designed specifically to charge capacitive loads in pulsed-power systems such as pulse-forming networks and modulators.
Overview
A constant-current power supply (CCPS) — also called a capacitor-charging power supply — is an IGBT-based high-voltage source designed specifically to charge capacitive loads in pulsed-power systems such as pulse-forming networks and modulators. Rather than holding a fixed voltage, it delivers a constant charging current, so the capacitor voltage rises linearly and predictably; once the load reaches the programmed voltage the supply switches into voltage-regulation mode and holds that level until the load is discharged. This gives fast, efficient, repeatable and precisely controllable charging to high voltage. Buyers choose a CCPS where ordinary fixed-voltage supplies are unsuitable — high-rep-rate capacitor charging that must be fast, controllable and not draw destructive inrush current.
Specifications
| Topology | IGBT-based constant-current (capacitor-charging) supply |
|---|---|
| Mode | constant-current charge, then auto switch to voltage-regulation / hold mode |
| Source / output | HV DC source or current source for capacitive loads |
| Charging characteristic | linear, rapid, controllable capacitor charge to high voltage |
| Output voltage | high-voltage (kV class, application-specific) |
| Charge rate | rated in Joules/second (J/s) for capacitor charging |
| Repetition rate | supports high pulse-repetition-rate (pps) operation |
| Output current | constant programmable charging current |
| Programmable target voltage with regulation/hold | |
| Application class | pulse-forming networks, modulators, pulsed-power |
Applications
- Capacitor charging in pulse-forming networks (PFN)
- Modulators and pulsed-power systems
- High-voltage DC source / current source duty
- Energy-storage capacitor banks for pulsed loads
- Repetitive high-voltage pulse generation
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