Electrical transmission or interconnection systems – Switching systems – Condition responsive
Reexamination Certificate
2011-08-23
2011-08-23
Patel, Rajnikant B (Department: 2838)
Electrical transmission or interconnection systems
Switching systems
Condition responsive
C323S282000, C318S814000
Reexamination Certificate
active
08004122
ABSTRACT:
A power converter controller is operable to control power provided to a load circuit coupled between a first voltage supply terminal and a first switching element by controlling the first switching element and to control power provided to an energy storage element coupled to the first switching element. The energy storage element is operable to provide a power supply. A first control terminal couples to a control input of the first switching element. A first load terminal couples to the first switching element and the charge storing element. A second switching element couples between the first load terminal and a second voltage supply terminal. Timing logic is operable to selectively provide a control signal at the first control terminal to control the first switching element and to selectively control the second switching element to supply power to the load circuit during a load powering phase by enabling the first and second switching elements, charge the energy storage element during a bootstrap charging phase by enabling the first switching element and disabling the second switching element, and allowing the load circuit to operate in isolation during a passive phase by disabling at least the first switching element.
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HV-2405E World-Wide Single Chip Power Supply, Harris Semiconductor, Apr. 1994.
Patel Rajnikant B
Williams Morgan & Amerson P.C.
Zarlink Semiconductor (U.S.) Inc.
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