Electricity: power supply or regulation systems – Output level responsive – Using a three or more terminal semiconductive device as the...
Patent
1998-03-24
1999-10-19
Wong, Peter S.
Electricity: power supply or regulation systems
Output level responsive
Using a three or more terminal semiconductive device as the...
323288, 323312, 323317, G05F 140, G05F 316
Patent
active
059695137
ABSTRACT:
In voltage regulator with a power switch to alternately couple and decouple an input voltage source to an output terminal at a switching frequency, a current supply provides a current that is proportional to the input voltage, the capacitance of a ramp capacitor, and a switching frequency. To provide this current, a first capacitor is charged to a first voltage, the first capacitor is discharged to a second voltage through a variable current source at a rate which is controlled by a third voltage on a second capacitor, the first capacitor is connected to the second capacitor to bring the second capacitor to a fourth voltage to adjust the rate of flow of charge through the variable current source, and the first capacitor is recharged to the first voltage. The rate of flow of charge through the variable current source controls the supply of current to the application.
REFERENCES:
patent: 5422562 (1995-06-01), Mammano et al.
Severns et al., Modern DC-to-DC Switchmode Power Converter Circuits, Van Nostrand Reinhold Co., NY, 11-77.
Lloyd Dixon, "Average Current Mode Control of Switching Power Supplies," Unitrode Switching Regulated Power Supply Design Seminar Manual, Unitrode Corporation, C1-1 to C1-14, 1991.
Lloyd Dixon, "Switching Power Supply Topology Review," Unitrode Switching Regulated Power Supply Design Seminar Manual, P1-1 to P1-12, 1991.
Kassakian et al., "DC/DC Converters," Principles of Power Electronics, Addison-Wesley Publishing Co., Sec. 2.3, 20-23, 1991.
Kassakian et al., "High-Frequency Switching dc/dc Converters," Principles of Power Electronics, Addison-Wesley Publishing Co., Chapter 6, 103-137, 1991.
Kassakian et al., "Dynamics and Control: An Overview," Principles of Power Electronics, Addison-Wesley Publishing Co., Chapter 11, 253-298, 1991.
Kassakian et al., "Discrete-Time or Sampled-Data Models," Principles of Power Electronics, Addison-Wesley Publishing Co., Sec. 12.5, 313-315, 1991.
Kassakian et al., "Feedback Control Design," Principles of Power Electronics, Addison-Wesley Publishing Co., Chapter 14, 365-402, 1991.
Patel Rajnikant B.
Volterra Semiconductor Corporation
Wong Peter S.
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