Demodulation circuit, chip, charger, signal processing method, device and medium

• Main Authors: JIANG JIANFENG, GOU GE, HU JINGANG, ZHAO TINGYU
• Format: Patent
• Language: Chinese; English
• Published: 28.05.2024
• Subjects: CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTINGELECTRIC POWER; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER; ELECTRIC COMMUNICATION TECHNIQUE; ELECTRICITY; GENERATION; SYSTEMS FOR STORING ELECTRIC ENERGY; TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHICCOMMUNICATION

The invention relates to the field of circuits, and discloses a demodulation circuit, a chip, a charger, a signal processing method, a device and a medium, the demodulation circuit comprises a comparison circuit, the inverted input end of the comparison circuit is connected with the first end of the two ends of a coil to receive a first carrier signal, and the positive input end of the comparison circuit is connected with the second end of the two ends of the coil to receive a second carrier signal; the comparison unit outputs a pulse width modulation signal based on an input first carrier signal and an input second carrier signal; wherein the second carrier signal is a carrier signal comprising an envelope signal. Carrier signals at the two ends of a coil are obtained, a first carrier signal is compared with a second carrier signal comprising an envelope signal through a comparison circuit, the carrier signal in the second carrier signal comprising the envelope signal is removed, and the envelope signal in t