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|1. (WO2017156921) BATTERY MANAGEMENT CHIP CIRCUIT ON THE BASIS OF SILICON ON INSULATOR (SOI) PROCESS|
|Applicants:||SHANGHAI INSTITUTE OF MICROSYSTEM AND INFORMATION TECHNOLOGY, CHINESE ACADEMY OF SCIENCES
|Title:||BATTERY MANAGEMENT CHIP CIRCUIT ON THE BASIS OF SILICON ON INSULATOR (SOI) PROCESS|
Provided in the present invention is a battery management chip circuit on the basis of a silicon on insulator (SOI) process. The battery management chip circuit comprises a high-voltage multi-path gate MUX, a voltage reference circuit, a Sigma-delta analog-to-digital converter (ADC) (comprising an analogue modulator and a digital filter), a serial peripheral interface (SPI) communication circuit, a functional control circuit and a voltage value register. The battery management chip circuit is integrated on the basis of an SOI high-voltage process; in particular, a high-voltage metal oxide semiconductor (MOS) employed by the battery management chip circuit is a high-voltage MOS device unit on the basis of the SOI process. Moreover, the present invention emphasizes the configurations of interface circuit-chopping circuit of the high-voltage multi-path gate MUX and the Sigma-delta ADC, so as to illustrate the advantages brought about by employing the SOI process design and tapeout, including reduced difficulty for circuit design and reduced layout area, etc.