Conversion circuit and detection circuit

• Main Authors: Pi, Tao, Zhan, Chang, Zhang, Mengwen
• Format: Patent
• Language: English
• Published: 16.07.2019
• Subjects: AMPLIFIERS; APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC,OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWERSUPPLY SYSTEMS; BASIC ELECTRONIC CIRCUITRY; CODE CONVERSION IN GENERAL; CODING; CONTROL OR REGULATION THEREOF; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUTPOWER; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER; DECODING; DIAGNOSIS; ELECTRICITY; GENERATION; HUMAN NECESSITIES; HYGIENE; IDENTIFICATION; INFORMATION STORAGE; MEDICAL OR VETERINARY SCIENCE; PHYSICS; STATIC STORES; SURGERY

A conversion circuit for converting a current signal into a first output voltage signal, where the current signal flows through a sensing component, is provided. The conversion circuit includes: a first current eliminating circuit, configured to eliminate a first current in the current signal. The first current eliminating circuit includes: a current sample and hold circuit; and a current driving circuit, coupled between the sensing component and the current sample and hold circuit; a second current eliminating circuit, coupled to the sensing component and configured to eliminate a second current in the current signal; and an integrating circuit, coupled to the sensing component and configured to integrate a third current in the current signal, and output a first input voltage signal between a first integration output terminal and a second integration output terminal.