A voltage and current fast control circuit
By designing a voltage and current fast control circuit, the problem that the voltage and current sampling hardware circuit in the prior art cannot quickly coordinate the output current peak and voltage of the DC magnetron sputtering power supply is solved, and the rapid comparison of the output current and voltage and the rapid control of the main power drive is achieved to ensure the stability and responsiveness of the power supply.
Patent Information
- Application Number
- CN202411712436.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-26
- Publication Date
- 2025-04-04
AI Technical Summary
The existing voltage and current sampling hardware circuits cannot effectively coordinate the output current peak and voltage of the DC magnetron sputtering power supply in a short time, resulting in unstable power output or inability to meet the needs of specific applications.
A voltage and current fast control circuit is designed, including a current sampling circuit, a current signal amplification circuit, a first comparison circuit, a voltage differential sampling circuit, a control switch circuit and a second comparison circuit. Through the coordination of these circuits, a rapid comparison of the output current peak value and output voltage of the DC magnetron sputtering power supply is realized, and the main power drive is quickly controlled based on the comparison results.
It realizes rapid coordination of the peak output current and output voltage of the DC magnetron sputtering power supply, ensuring the stability and rapid response of the power supply, and meeting specific application needs.