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Electronic circuit having band-gap reference circuit and start-up circuit, and method of starting-up band-gap reference circuit
Electronic circuit having band-gap reference circuit and start-up circuit, and method of starting-up band-gap reference circuit
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机译：具有带隙基准电路和启动电路的电子电路以及带隙基准电路的启动方法
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摘要
A circuit includes a band-gap reference circuit and a start-up circuit. The band-gap reference circuit includes an operational amplifier, a first current path between a power supply node and a reference node, a second current path between the power supply node and the reference node, and a feedback path between an output of the operational amplifier and the first and second current paths. A first input of the operational amplifier is coupled to the first current path, and a second input of the operational amplifier is coupled to the second current path. The start-up circuit includes a current source and at least one switch coupled between the current source and the band-gap reference circuit. The at least one switch is configured to electrically couple the current source with the first and second current paths during a start-up phase.
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