CIRCUIT ARRANGEMENT FOR IDENTIFYING NETWORK ZERO CROSSINGS
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Accused Products
Abstract
A circuit arrangement for identifying network zero crossings of a network voltage of an alternating current network is provided. A measurement current generated by the network voltage is supplied to a zero crossing detector in order to produce a network zero crossing signal. A current sink is arranged between a live conductor and a neutral conductor of the alternating current network, the current sink allowing the path of a current value of the measurement current generated by the network voltage to be defined.
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Citations
28 Claims
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1-8. -8. (canceled)
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9. A circuit arrangement for detection of zero crossings of a network voltage of an alternating current network, comprising:
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a zero crossing detector, a measurement current generated by the network voltage being supplied to the zero crossing detector to form a zero crossing signal, a variable current sink arranged between live conductor and neutral conductor of the alternating current network, wherein a curve of a current value of the measurement current generated by the network voltage is defined by the variable current sink, and wherein the curve of the current value of the measurement current caused by the variable current sink is directly proportional to a curve of the network voltage. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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21. An inverter for feeding electrical energy into an alternating current network, comprising:
a circuit arrangement for detection of zero crossings of a network voltage of an alternating current network, the circuit arrangement comprising; a zero crossing detector, a measurement current generated by the network voltage being supplied to the zero crossing detector to form a zero crossing signal, a variable current sink arranged between live conductor and neutral conductor of the alternating current network, wherein a curve of a current value of the measurement current generated by the network voltage is defined by the variable current sink, and wherein the curve of the current value of the measurement current caused by the variable current sink is directly proportional to a curve of the network voltage. - View Dependent Claims (22, 23, 24, 25, 26, 27, 28)
Specification