High-precision voltage-controlled current source capable of being turned off quickly
The invention discloses a high-precision voltage-controlled current source capable of being turned off quickly. The high-precision voltage-controlled current source comprises a PWM wave generation module, a rectifier module, a voltage following module and a voltage-controlled current source module,...
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| Hauptverfasser: | , , |
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| Format: | Patent |
| Sprache: | chi ; eng |
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| Online-Zugang: | Volltext bestellen |
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| Zusammenfassung: | The invention discloses a high-precision voltage-controlled current source capable of being turned off quickly. The high-precision voltage-controlled current source comprises a PWM wave generation module, a rectifier module, a voltage following module and a voltage-controlled current source module, wherein the PWM wave generation module is used for generating a square wave, the rectifier module converts a square wave signal into a DC voltage with the same effective value, the voltage following module is used for isolating the rectifier module and the voltage-controlled current source module toprevent the resistance in the rectifier module from affecting a resistance value proportion in the voltage-controlled current source module, and the voltage-controlled current source module is used for converting a DC control voltage output by the voltage following module into corresponding current. The high-precision voltage-controlled current source disclosed by the invention can be quickly turned off through the PWM w |
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