LOW-POWER PULSED BANDGAP REFERENCE
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United States of America Patent
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app pub date -
Nov 30, 2016
filing date -
Dec 3, 2015
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Abstract
An electronic circuit includes a bandgap circuit, a capacitor, a switch and a control circuit. The bandgap circuit is configured to generate a predefined reference voltage. The capacitor is coupled to an output port of the electronic circuit on which an output voltage is to be provided. The switch is connected between the bandgap circuit and the capacitor. The control circuit is configured to control the bandgap circuit and the switch so as to alternate between: first time intervals, during which the bandgap circuit is enabled and connected to the capacitor, the capacitor is charged using the reference voltage generated by the bandgap circuit, and the reference voltage is provided as the output voltage on the output port; and second time intervals, during which the bandgap circuit is disabled and disconnected from the capacitor, and the output voltage on the output port is supplied from the capacitor.
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