Compact, Accurate, and Efficient Battery-Charging CMOS Voltage Regulator
OwnerLinyuan Cui, Gabriel Alfonso Rincon-Mora +1inventors
InventorsLinyuan Cui, Gabriel Alfonso Rincon-Mora, Qian Zhi
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Abstract
A battery-charging voltage regulator includes an inductor in series with a battery, an output terminal VO selectively electrically connectable to the battery VB; and an input terminal VIN selectively electrically connectable to an input of the inductor LX. The connections are such that the inductor always drains to the output. The device can include a battery supply mode, a charge supply mode, and an input-supplied mode depending on switching with the device, which in one aspect, can be implement in metal oxide semiconductors,
Claims26
A battery-charging voltage regulator, comprising
- an inductor LX;
- a battery VB in series with the inductor LX;
- an output terminal VO selectively electrically connectable to the battery VB;
- and
- an input terminal VIN selectively electrically connectable to an input of the inductor LX.
A battery-charging voltage regulator, comprising:
- an inductor LX;
- a battery VB in series with the inductor LX, wherein the inductor is between a first node VSWI and a second node VSWX and the battery is between the second node VSWX and a third node VSWB;
- an output terminal VO selectively electrically connectable to the first node VSWI via a first output switch SIO, to the second node VSWX via a second output switch SXO and to the third node VSWB via a third output switch SBO;
- and
- an input terminal VIN selectively electrically connectable to the first node VSWI via an input switch S1 between the first node VSWI and the input terminal VIN.
Dependencies are inferred from the claim text.