IP Library › Granted Patent US 6,853,172
Granted Patent B2
US 6,853,172 · App. 10/696,182 · Granted Feb 8, 2005

Switching regulator

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Quick Facts
Patent No.
US 6,853,172
App. No.
10/696,182
Granted
Feb 8, 2005
Kind
B2
Abstract

To provide a switching regulator with a small packaging area. A switching regulator according to the present invention includes: a first terminal for inputting an output voltage of the switching regulator; a reference voltage source for generating a reference voltage; a voltage divider circuit for dividing the output voltage of the switching regulator; an error amplifier for inputting the reference voltage and an output signal of the voltage divider circuit; a first circuit block having a resistance, for outputting a signal that varies depending on a resistance value of the resistance; a second circuit block having a square wave oscillator, for outputting a signal based on an output signal of the square wave oscillator and an output signal of the first circuit block; a third circuit block having a logic circuit for receiving the output signal of the square wave oscillator and the output signal of the second circuit block to output a signal, and a circuit for outputting an output signal, which is controlled based on an output of the logic circuit; and a comparator for receiving an output of the error amplifier and the output signal of the third circuit block to output a signal.

Claims (9)

1. A switching regulator comprising:

a first terminal for inputting an output voltage of the switching regulator;

a reference voltage source for generating a reference voltage;

a voltage divider circuit for dividing the output voltage of the switching regulator;

an error amplifier for inputting the reference voltage and an output signal of the voltage divider circuit;

a first circuit block having one resistance, for outputting a signal that varies depending on a resistance value of the resistance;

a second circuit block having a square wave oscillator, for outputting a signal based on an output signal of the square wave oscillator and an output signal of the first circuit block;

a third circuit block having a logic circuit for receiving the output signal of the square wave oscillator and the output signal of the second circuit block to output a signal, and a circuit for outputting an output signal which is controlled based on an output of the logic circuit; and

a comparator for receiving an output of the error amplifier and the output signal of the third circuit block to output a signal.

Assignments (5)
CHANGE OF NAME Recorded Mar 12, 2018
From: SII SEMICONDUCTOR CORPORATION
To: ABLIC INC.
Reel/Frame 045567/0927 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Mar 10, 2016
From: SEIKO INSTRUMENTS INC.
To: SII SEMICONDUCTOR CORPORATION
Reel/Frame 038058/0892 →
MERGER AND CHANGE OF NAME Recorded Jan 6, 2016
From: DEVICE ENGINEERING CO., LTD.; TOREX SEMICONDUCTOR LTD.
To: TOREX SEMICONDUCTOR LTD.
Reel/Frame 037419/0560 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Dec 17, 2004
From: SANO, KAZUAKI
To: SEIKO INSTRUMENTS INC.
Reel/Frame 016080/0642 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Dec 17, 2004
From: NAKA, TAKESHI
To: DEVICE ENGINEERING CO.
Reel/Frame 016080/0716 →