Power circuit for low power solenoid operation using an AC or DC

Details Power circuit for low power solenoid operation using an AC or DC Power circuit for low power solenoid operation using an AC or DC

1998-03-12

2000-06-13

Han, Y. J.

Electricity: power supply or regulation systems

Output level responsive

Using a three or more terminal semiconductive device as the...

363 49, 363 16, G05F 156, H02M 3335

Patent

active

060753536

ABSTRACT:
A power circuit for controlling the amount of power delivered to a solenoid coil is disclosed. A current mode pulse width modulation controller is employed to interrupt the flow of current through a power branch of the circuit. A rectifying bridge enables use of the power circuit with either AC or DC power sources. The power circuit includes a startup current source for initially energizing the pulse width modulation controller. Two feedback voltages, one representing the compensated current through the power branch of the circuit and one representing the output voltage of the power circuit are used by the pulse width modulation controller to output pulses of varying duration at constant frequency to a field effect transistor. The opening of the field effect transistor interrupts the flow of current in the power branch of the circuit.

REFERENCES:
patent: 5028861 (1991-07-01), Pace et al.
patent: 5642267 (1997-06-01), Brkovic et al.
patent: 5687070 (1997-11-01), Jacobs et al.
patent: 5777462 (1998-07-01), Yue
patent: 5804950 (1998-09-01), Hwang et al.
Unitrode Integrated Circuits Corportaion, Design Notes--100, 48, pp. 10-12. Copyright 1994 by Unitrode Corporation. (No Month).
Unitrode Integrated Circuits Corporation, Unitrode Appl'n Note, U-100A, pp. 9-62 to 9-75, Unitrode Product Applications Handbook 1993-94, Copyright 1993. (No Month).
Unitrode Integrated Circuits Corporation, Unitrode Data Sheet for the Circuit Mode PWM Controller, pp. 5-186 to 5-191, Unitrode Product Applications Handbook 1993-94, Copyright 1993. (No Month).
Unitrode Integrated Circuits Corporation, Unitrode Application Note U-111, pp. 9-134 to 9-151, Unitrode Product Applications Handbook, 1993-94, Copyright 1993, (No Month).

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