Power supply circuit with cascade-connected diodes and method for controlling power supply circuit
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United States of America
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Apr 23, 2024
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app pub date -
Feb 13, 2020
filing date -
Feb 13, 2020
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Abstract
An power supply circuit includes: a plurality of Zener diodes (ZD) between which cascade connection is established and which are connected in parallel to a load (10) to which power is supplied from a power supply line; switches (SW) on which ON/OFF control is performed, which are connected in parallel to one of the plurality of Zener diodes or between the plurality of Zener diodes, and which form current paths when ON control is performed on the switches; a current monitoring means (2) for monitoring current that is flowing in one of the plurality of Zener diodes; a comparison means (4) for comparing a reference current (3) and the current monitored by the current monitoring means; and a control means (5) for performing ON/OFF control on the switches on the basis of the result of the comparison by the comparison means.
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