Title:
A VOLTAGE REGULATOR WITH AN ADAPTIVE OFF-TIME GENERATOR
Document Type and Number:
WIPO Patent Application WO/2020/077553
Kind Code:
A8
Abstract:
A voltage regulator circuit (100) includes a first transistor (M1), an inductor (L1), and a diode (D1). The inductor (L1) connects to the diode (D1) at a switch node (SW). The voltage regulator circuit (100) produces an output voltage that is larger than an input voltage. The first transistor (M1) has on and off states and electrically couples a node to ground when in the on state. An error amplifier circuit (140) generates an error signal based on a difference between a reference voltage and a voltage indicative of the output voltage. The error signal causes the first transistor (M1) to transit from the on state to the off state. An adaptive off-time generator circuit (160) couples to an input voltage node, and generates a signal to cause the first transistor (M1) to transit from the off state to the on state. The time the first transistor (M1) in the off state is inversely proportional to the time the first transistor (M1) in the on state.
Inventors:
LIANG JIAN (CN)
YU YANGWEI (CN)
FENG CHEN (CN)
YU YANGWEI (CN)
FENG CHEN (CN)
Application Number:
PCT/CN2018/110580
Publication Date:
September 03, 2020
Filing Date:
October 17, 2018
Export Citation:
Assignee:
TEXAS INSTRUMENTS INC (US)
TEXAS INSTRUMENTS JAPAN LTD (JP)
TEXAS INSTRUMENTS JAPAN LTD (JP)
International Classes:
G05F1/613; H02M3/156
Attorney, Agent or Firm:
LEE AND LI - LEAVEN IPR AGENCY LTD. (CN)
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