US 2017/0366043 A1 · POWER CONVERTING DEVICE AND CONTROL METHOD THEREOF

Abstract

A power converting device includes an AC/DC converter, a switch, and a controlling unit. The AC/DC converter converts AC power into a DC voltage, and provides the DC voltage to a load. The switch is coupled to a backup power source. The controlling unit receives the DC voltage. If the DC voltage is less than a predetermined voltage or a decrease of the DC voltage is greater than a predetermined percentage of the DC voltage and the controlling unit receives a voltage command signal of the backup power source, the controlling unit turns on the switch for providing the backup power source to the load.

Claims21

Dependent claims

A power converting device comprising:

an AC/DC converter converting AC power to a DC voltage, and providing the DC voltage to a load;
a switch coupled to a backup power source;
and
a controlling unit receiving the DC voltage, wherein if the DC voltage is less than a predetermined voltage or a decrease of the DC voltage is greater than a predetermined percentage of the DC voltage and the controlling unit receives a voltage command signal of the backup power source, the controlling unit turns on the switch for providing the backup power source to the load.

1 more element

A control method of a power converting device comprising:

converting AC power into a DC voltage and providing the DC voltage to a load by an AC/CD converter;
determining whether or not the DC voltage is less than a predetermined voltage or determining whether or not a decrease of the DC voltage is greater than a predetermined percentage of the DC voltage by a controlling unit;
and
turning on a switch by the controlling unit for providing a backup power source to the load if the controlling unit determines that the DC voltage is less than the predetermined voltage or the decrease of the DC voltage is greater than the predetermined percentage of the DC voltage and the controlling unit receives a voltage command signal of the backup power source.

1 more element

Dependencies are inferred from the claim text.

Facts

Application

15/375,181Filed 12 Dec 2016

Priority

TW 10511906517 Jun 2016

Published

21 Dec 2017

Term ends

Not estimatedThe source records don’t support an estimate.

Classification6 codes

H02J 9/061
With automatic change-over , e.g. UPS systems: for DC powered loads
H02J 7/865
Circuit arrangements for charging or discharging batteries or for supplying loads from batteries: battery or charger load switching, e.g.…
H02M 7/04
Conversion of AC power input into DC power output without possibility of reversal: by static converters
H02M 7/12
By static converters: using discharge tubes with control electrode or semiconductor devices with control electrode

Power converting device and control method thereof

Life of this patent

Power converting device and control method thereof

Life of this patent

Abstract

Claims21