Circuit arrangement for actuating a bistable relay
AssigneeSMA Solar Technology AG
InventorsMatthias Lueck, Gerd Wollenhaupt
Life of this patent
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Abstract
The disclosure relates to a circuit arrangement for actuating a bistable relay including a relay coil of the bistable relay being arranged in a series circuit with a capacitor, wherein the series circuit is connected to a supply voltage (V+) via a first semiconductor switch for switching on the bistable relay and is short-circuited through a second semiconductor switch for switching off the bistable relay. The circuit arrangement includes at least one voltage regulator configured to regulate the voltage present at the relay coil of the bistable relay such that a preset voltage is not exceeded.
Claims11
A circuit arrangement for actuating a bistable relay, comprising:
- a relay coil of the bistable relay arranged in a series circuit with a capacitor, wherein the series circuit is connected to a supply voltage via a first semiconductor switch for switching on the bistable relay and is short-circuited through a second semiconductor switch for switching off the bistable relay;
- at least one voltage regulator, configured to regulate a voltage present at the relay coil of the bistable relay such that a preset voltage at the relay coil is not exceeded, comprising a first voltage regulator with a first input terminal, a first output terminal and a first control terminal, wherein the voltage is present at the first output terminal relative to the first control terminal with an absolute value below the preset voltage, wherein the first input terminal is connected to the first semiconductor switch, and wherein the first output terminal is connected to a first output terminal of the relay coil and wherein the first control terminal is connected to a second output terminal of the relay coil.
Dependencies are inferred from the claim text.