Abstract:This paper presents circuit topologies and implementations for SC DC-DC converters with controlled charging current. It focuses on the power current mirror that regulates the charging current of the flying capacitor and on the switch drivers. The bandwidth and transient response of the power mirror are improved by inserting an auxiliary current mirror in its input signal path. Conventional switch drivers need power supplies with fast response to load transients; the driver presented here is less demanding, as … Show more
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