Title:
NON-VOLTAGE-DROPPING POWER SUPPLY CIRCUIT AND APPLICATION CIRCUIT
Document Type and Number:
WIPO Patent Application WO/2018/151052
Kind Code:
A1
Abstract:
[Problem] In order to form an electronic switch for intermittently switching a commercial power supply using a power MOSFET, a drive power, although very small, is required and therefore a conventional circuit configuration has had the disadvantage of, for example, consuming power even during no-load time. Although a highly efficient rectification scheme using the power MOSFET exists, the scheme separately requires drive power and therefore cannot be treated as a two terminal diode. Accordingly, a simple method for obtaining a very small power for controlling ten and several volts has been desired. [Solution] Provided are a non-voltage-dropping power supply circuit, an electronic switch using a power MOSFET, and an ideal diode capable of being treated as a two terminal. The non-voltage-dropping power supply circuit can obtain a very small power without causing a voltage drop in such a way that: a resistor having a high resistance is connected to the gate of a depletion-type FET to cause an operation delay; and instantaneous charging is performed when the power supply voltage reaches a required voltage.
Inventors:
MATSUMOTO KAZUHO (JP)
Application Number:
PCT/JP2018/004694
Publication Date:
August 23, 2018
Filing Date:
February 09, 2018
Export Citation:
Assignee:
MATSUMOTO KAZUHO (JP)
International Classes:
H02M1/08; H02M3/00; H02M7/12
Foreign References:
| JP2005518010A | 2005-06-16 | |||
| US20040046532A1 | 2004-03-11 | |||
| JP2013255425A | 2013-12-19 | |||
| JP2001224179A | 2001-08-17 |
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