Electricity: power supply or regulation systems – Output level responsive – Using a three or more terminal semiconductive device as the...
Patent
1993-09-30
1996-08-20
Wong, Peter S.
Electricity: power supply or regulation systems
Output level responsive
Using a three or more terminal semiconductive device as the...
323224, G05F 140
Patent
active
055482066
ABSTRACT:
A dual-mode power saving dc-dc converter. The dual-mode power saving dc-dc converter has a first switch control circuit and a second switch control circuit. The first switch control circuit is connected to a first current sensor, and the second switch control circuit is connected to a second current sensor. The two current sensors are connected to a control logic, which is operable to enable and disable the first and second switch control circuit. The first switch control circuit uses less power than the second switch control circuit. The control logic activates the first switch control circuit during low current load and activates the second switch control circuit used during high current load. Other systems and methods are disclosed.
REFERENCES:
patent: 5028861 (1991-07-01), Pace et al.
patent: 5095224 (1992-03-01), Renger
patent: 5192906 (1993-03-01), Nathan
patent: 5283726 (1994-02-01), Wilkerson
patent: 5426388 (1995-06-01), Flora et al.
Linear Technology Corporation, "High Efficiency Synchronous Step-Down Switching Regulators", LTC1148/LTC1148-3.3/LTC1148-5, p. 1-20, 1993.
National Semiconductor Corporation
Vu Bao Q.
Wong Peter S.
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