Step-up switching power supply

Patent metadata

Field	Value
Publication number	US-8928294-B2
Application number	US-201313844091-A
Country	US
Kind code	B2
Filing date	Mar 15, 2013
Priority date	Mar 15, 2012
Publication date	Jan 6, 2015
Grant date	Jan 6, 2015

Abstract

A hysteresis control step-up switching power supply includes a switching element. Current flowing through the switching element does not continue to increase indefinitely. The switching element is turned off when a detected value of an output voltage increases to a reference voltage, or when the output of a current detector circuit that detects that a current flowing through the switching element increases to a reference current value.

First claim

What is claimed is:

1. A step-up switching power supply for being connected to an input power source, comprising:
an inductor having a first end connected to a high potential side of the input power source;
a switching element connected between a second end of the inductor and a low potential side of the input power source;
a rectifying element connected to said second end;
an output terminal connected via the rectifying element to said second end;
an output voltage detect…

Assignees

• Fuji Electric Co Ltd

Inventors

• Yamada Kouhei

Classifications

• G05F1/10 Primary

  Physics · mapped topic

• H02M1/0035

  Electricity · mapped topic

• H02M3/156

  Electricity · mapped topic

• Y02B70/10

  Cross-Sectional Technologies · mapped topic