Patent ID: 6838859
Filing Date: 2005-01-04
Classification: F23N,H02M

Abstract:
1. A device for increasing an extremely low DC voltage to an operating voltage suitable for operating electrical control of gas supply valve for gas equipment, comprising a first transistor and a second transistor each having a gate terminal, source terminal, and drain terminal, a transformer having a first winding, a second winding, a third winding, and a fourth winding, said first winding and said second winding having equal number of windings, and said third winding and fourth winding having equal number of windings substantially higher than the number of windings of said first winding and second winding, said first winding having a start end connected to a rear end of said third winding and to a first connection terminal, said first winding having a rear end connected to a start end of said second winding and to a second connection terminal, said second winding having a rear end connected to a start end of said fourth winding and to a third connection terminal, said source terminal of said first transistor and said second transistor being connected to one another, said source terminal of said first transistor and second transistor being connected to a common terminal, said drain terminal of said first transistor being connected to said first connection terminal, said drain terminal of said second transistor being connected to said third connection terminal, said gate terminal of said first transistor being connected to a rear end of said fourth winding through a first resistor, said gate terminal of said second transistor being connected to a start end of said third winding through a second resistor, said third winding having a start end connected to an anode of a first diode and a cathode of a second diode through a first capacitor, said fourth winding having a rear end connected to an anode of a third diode and a cathode of a fourth diode through a second capacitor, said cathode of said first diode being connected to said cathode of said third diode and to a first output terminal, and said anode of said second diode being connected to said anode of said fourth diode and to a second output terminal, said second connection terminal and said common terminal being operative to receive said extremely low voltage to said device, and said a momentary switch connected between said source terminal and said drain terminal of said first transistor and operative for initiating operation of said device to provide said operating voltage from said first output terminal and said second output terminal.