Voltage regulator and voltage regulating method and chip using the same

Patent metadata

Field	Value
Publication number	US-9515552-B2
Application number	US-201414450638-A
Country	US
Kind code	B2
Filing date	Aug 4, 2014
Priority date	May 7, 2014
Publication date	Dec 6, 2016
Grant date	Dec 6, 2016

Abstract

A voltage regulator with an on/off control on the control terminal of the power transistor of the voltage regulator. The power transistor of the voltage regulator drives the conversion from a first voltage to a second voltage. The voltage regulator provides a power-saving switch at the control terminal of the power transistor, and includes a power-saving control circuit controlling the power-saving switch. When the power-saving switch is turned on, the control signal for the power transistor is conveyed into the control terminal of the power transistor. When the power-saving switch is turned off, the connection between the control signal for the power transistor and the control terminal of the power transistor broken.

First claim

What is claimed is:

1. A voltage regulator, comprising:
a power transistor, driving a conversion from a first voltage to a second voltage and having a control terminal;
a power-saving switch having one terminal coupled to the control terminal of the power transistor;
a power-saving switch control circuit controlling the power-saving switch, and
a chip, comprising the power transistor, the power-saving switch, the power-saving switch control circuit as well as a system manage…

Assignees

• Nuvoton Technology Corp

Inventors

• Hung Ming-Che
• Lu Ciao-Ling

Classifications

• G06F1/26

  Physics · mapped topic

• H02M2001/0032

  Electricity · mapped topic

• H02M3/157 Primary

  Electricity · mapped topic

• H02J9/005 Primary

  Electricity · mapped topic

• Y02B70/16

  Cross-Sectional Technologies · mapped topic