CIRCUITS AND METHODS FOR PROVIDING POWER AND DATA COMMUNICATION IN ISOLATED SYSTEM ARCHITECTURES
First Claim
Patent Images
1. A switch controller, comprising:
- a monolithic substrate;
a drive circuit supported by said monolithic substrate and configured to drive a power switch;
a diagnostics block supported by said monolithic substrate and configured to provide diagnostic signals indicating at least one attribute associated with said power switch; and
a control block supported by said monolithic substrate and configured to drive said drive circuit in response to control signals developed based on said diagnostic signals.
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Abstract
A switch controller, an isolated system incorporating an integrated circuit (IC) and a method of operating a power switch. In one embodiment, the IC includes: (1) a monolithic substrate, (2) a drive circuit supported by the monolithic substrate and configured to drive a power switch, (3) a diagnostics block supported by the monolithic substrate and configured to provide diagnostic signals indicating at least one attribute associated with the power switch and (4) a control block supported by the monolithic substrate and configured to drive the drive circuit in response to control signals developed based on the diagnostic signals.
13 Citations
27 Claims
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1. A switch controller, comprising:
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a monolithic substrate; a drive circuit supported by said monolithic substrate and configured to drive a power switch; a diagnostics block supported by said monolithic substrate and configured to provide diagnostic signals indicating at least one attribute associated with said power switch; and a control block supported by said monolithic substrate and configured to drive said drive circuit in response to control signals developed based on said diagnostic signals. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 18)
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11. An isolated system, comprising:
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a monolithic substrate; first and second gate drive circuits supported by said monolithic substrate and configured to drive respective first and second power transistors; a control block supported by said monolithic substrate and configured to drive said first and second gate drive circuits in response to control signals developed based on said diagnostic signals; and a microcontroller coupled to said control block and configured to receive said diagnostic signals and provide said control signals. - View Dependent Claims (12, 13, 14, 15, 16, 17)
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19. A method of operating a power switch, comprising:
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driving said power switch with a drive circuit; providing diagnostic signals indicating at least one attribute associated with said power switch; and driving said drive circuit in response to control signals developed based on said diagnostic signals to sample power from a power bus coupled to said drive circuit. - View Dependent Claims (20, 21, 22, 23, 24, 25, 26, 27)
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Specification