31-03-2022 дата публикации
Номер: US20220102099A1
A communication device including an actuator driven by a control circuit, the communication device further including: 1. A low-power-consumption communication device for an electrical switching unit , said electrical switching unit comprising an actuator driven by a control circuit , the communication device comprising:a connector that can be connected to the control circuit, to receive a state signal sent by the control circuit and to receive an electrical power supply voltage supplied by the switching unit;a capacitor configured to be recharged from the power supply voltage received from the input connector when the state signal takes a predefined value;a bistable relay comprising a normally-open electrical contact connected to output terminals of the communication device to form a dry electrical contact; anda pulse generator supplied by the capacitor and being configured to excite the bistable relay and thus switch the electrical contact when the capacitor reaches a predefined level of charge.2. The communication device according to claim 1 , further comprising a current-limiting circuit connected between the input connector and the capacitor claim 1 , said current-limiting circuit being configured to supply the capacitor from the received electrical power supply voltage solely when the state signal takes the predefined value.3. The communication device according to claim 1 , wherein the relay comprises an additional electrical contact coupled to an output of the connector to send a signal indicating that the relay has changed state.4. The communication device according to claim 3 , wherein the additional electrical contact is biased by the voltage supplied by the capacitor.5. The communication device according to claim 3 , wherein the additional electrical contact is a normally-closed contact.6. The communication device according to claim 1 , wherein the electrical power supply voltage supplied by the switching unit is lower than or equal to 15 volts.7. The ...
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