Isolator system with status data integrated with measurement data
First Claim
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1. An isolator system with data multiplexing, comprising:
- a pair of circuit systems including a first circuit system and a second circuit system separated by an electrical isolation barrier and communicatively coupled to each other by at least one isolator device that bridges the isolation barrier,the first circuit system of the pair comprising;
a measurement system generating measurement data,a status monitor generating status data of a type different than the measurement data, anda communication system that multiplexes the measurement data and the status data in the first circuit system for transmission to the second circuit system of the pair of circuit systems across a common isolator device synchronous with a clock edge received by the first circuit system from the second circuit system of the pair of circuit systems.
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Abstract
An isolator system is disclosed in which a pair of circuit systems is separated by an isolation barrier but engage in mutual communication by an isolator device that bridges the isolation barrier. A first circuit system may include a measurement system generating measurement data and status monitor generating status data. The first circuit system also may include a communication system that multiplexes the measurement data and the status data for transmission across a common isolator device. In this manner, the number of isolator devices may be reduced over conventional designs.
51 Citations
36 Claims
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1. An isolator system with data multiplexing, comprising:
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a pair of circuit systems including a first circuit system and a second circuit system separated by an electrical isolation barrier and communicatively coupled to each other by at least one isolator device that bridges the isolation barrier, the first circuit system of the pair comprising; a measurement system generating measurement data, a status monitor generating status data of a type different than the measurement data, and a communication system that multiplexes the measurement data and the status data in the first circuit system for transmission to the second circuit system of the pair of circuit systems across a common isolator device synchronous with a clock edge received by the first circuit system from the second circuit system of the pair of circuit systems. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A system, comprising:
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a pair of circuit systems separated by an electrical isolation barrier; a first circuit system of the pair comprising; a power receiver, a measurement system generating measurement data, a supply monitor generating status data, of a type different than the measurement data, representing state of an electrical supply in the first circuit system, and a communication system that multiplexes the measurement data and the status data for transmission across the isolation barrier by a common first isolator device, synchronous with a clock edge received from a second circuit system of the pair of circuit systems; and the second circuit system comprising; a power transmitter coupled to the power receiver via a second isolator device; and a power controller responsive to the status data that regulates output of the power transmitter. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20)
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21. A method, comprising:
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generating measurement data and status data by a first circuit system on a first side of an isolation barrier, the measurement data representing a result of a test performed on an input signal, and the status data representing an operational state of the first circuit system, multiplexing the measurement data and the status data on the first side of the isolation barrier, and transmitting, to a second circuit system on a second side of the isolation barrier, the multiplexed measurement data and the status data across the isolation barrier on a common isolator device synchronous with a clock edge received from the second side of the isolation barrier. - View Dependent Claims (22, 23, 24, 25, 26)
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27. A system, comprising:
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an isolator device that bridges an isolation barrier, a first circuit system comprising; a measurement system generating measurement data, a status monitor generating status data of a type different than the measurement data, and a communication system that multiplexes the measurement data and the status data for transmission across a common isolator device to a second circuit system synchronous with a clock edge received by the first circuit system. - View Dependent Claims (28, 29, 30, 31, 32, 33, 34)
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35. A system, comprising:
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a pair of isolator devices that bridge an isolation barrier, a circuit system, provided on a common side of the isolation barrier, comprising; a power transmitter to deliver power to a first isolator device of the pair, a communication system that receives multiplexed measurement data and status data, the status data being of a type different than the measurement data, transmitted across a second isolator device of the pair in pulse form synchronous with a clock edge generated by the circuit system, a control system communicating the measurement data to another system, and a power controller to modulate operation of the power transmitter based on the status data.
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36. A method, comprising:
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generating power delivery signals for transmission across a first isolation device, receiving from a second isolation device power control signals multiplexed with measurement data synchronous with a clock edge transmitted across the first isolation device, modulating the power delivery signals according to the received power control signals, wherein the power delivery signals are provided at a minimum level notwithstanding an excess number of power control signals indicating a need for lower power, and the power delivery signals are provided at a maximum level notwithstanding an excess number of power control signals indicating a need to increase power.
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Specification