Browse Prior Art Database

Inverter Power Supply

IP.com Disclosure Number: IPCOM000098670D
Original Publication Date: 1959-Aug-01
Included in the Prior Art Database: 2005-Mar-08
Document File: 2 page(s) / 33K

Publishing Venue

IBM

Related People

Brummel, LE: AUTHOR

Abstract

This circuit provides a simple d.c. to d.c. inverter power supply for producing a higher d.c. voltage from a 6 or 12 volt battery. Such action is effected by first inverting d.c. to high voltage a.c. and then rectifying that to obtain the d.c. output. A three-winding filament transformer having 110, 6.3 and 5 volt windings has the 110 volt winding 3 connected to a bridge-type rectifier circuit 4 with a. 1 mfd. buffer condenser 5 connected across the winding. A transistor 6 connects the 6.3 volt winding 7 to a battery 8, and a 1,500 ohm resistor 9 and a 250 ohm potentiometer 10 are used to connect the 5 volt winding 11 as a base feedback winding. This provides a freerunning multivibrator operating at about 400 cycles per second.

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Inverter Power Supply

This circuit provides a simple d.c. to d.c. inverter power supply for producing a higher d.c. voltage from a 6 or 12 volt battery. Such action is effected by first inverting d.c. to high voltage a.c. and then rectifying that to obtain the d.c. output. A three-winding filament transformer having 110, 6.3 and 5 volt windings has the 110 volt winding 3 connected to a bridge-type rectifier circuit 4 with a. 1 mfd. buffer condenser 5 connected across the winding. A transistor 6 connects the 6.3 volt winding 7 to a battery 8, and a 1,500 ohm resistor 9 and a 250 ohm potentiometer 10 are used to connect the 5 volt winding 11 as a base feedback winding. This provides a freerunning multivibrator operating at about 400 cycles per second.

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