CONTROL CIRCUIT FOR DC/AC CONVERTER

Japanese Patent JP2015149796

A

PROBLEM TO BE SOLVED: To provide a simple control circuit for a DC/AC converter, which is composed of combination of a commercial power supply and photovoltaic power generation, and serves as an emergency source circuit for continuously supplying power from the commercial power supply to a load and an energy-saving circuit for stably supplying power from the photovoltaic power generation to a load, and which also avoids deterioration of a battery.SOLUTION: A control circuit for a DC/AC converter comprises: a battery 5 which composes a charging circuit 8 of a photovoltaic power generation system 2 and is connected to a DC/AC converter 4 via a first diode 7a; and a commercial power supply 6 to which an AC/DC automatic voltage controller 3 for converting AC current to DC current is connected and which is connected to the DC/AC converter 4 via a second diode 7b. The DC/AC converter 4 supplies AC power to a load 11 without momentary power interruption in a manner such that a primary source is switched between the battery 5 and the commercial power supply 6 by selection and setting of a voltage value (V) of the AC/DC automatic voltage controller 3 against a battery voltage value (V).

KOBAYASHI MASAKAZU
SAKAKIBARA TATSUYA

JP2014019982A

August 20, 2015

February 05, 2014

Click for automatic bibliography generation  

TECHNO KNOWLEDGE SYSTEM KK

H02M7/48; H02J7/35; H02J9/06

JPS6249526A	1987-03-04
JPH0965582A	1997-03-07
JP2012016096A	2012-01-19
JP2007124864A	2007-05-17
JPS59130130U	1984-09-01
JP2011250608A	2011-12-08
JP2013188077A	2013-09-19
JP2012095418A	2012-05-17
JP2011109901A	2011-06-02
JP2001197751A	2001-07-19
JPS5641731A	1981-04-18

EP2402821A2	2012-01-04
US4633418A	1986-12-30

Akiho Harada

Previous Patent: POWER CONTROL SYSTEM

Next Patent: ELECTRIC WIRE PROTECTION DEVICE