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US 12,323,136 B2Granted
Thyristor control device
AssigneeSTMicroelectronics (Tours) SAS
InventorsRomain Pichon, Yannick Hague
Life of this patent
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Abstract
A control device includes a triac and a first diode that is series-connected between the triac and a first terminal of the device that is configured to be connected to a cathode gate of a thyristor. A second terminal of the control device is configured to be connected to an anode of the thyristor. The triac has a gate connected to a third terminal of the device that is configured to receive a control signal. The thyristor is a component part of one or more of a rectifying bridge circuit, an in-rush current limiting circuit or a solid-state relay circuit.
Claims8
A solid state relay, comprising:
- a first thyristor and a second thyristor connected in antiparallel between a first relay terminal and a second relay terminal;
- wherein an anode of the first thyristor is connected to the first relay terminal;
- and
- a control device comprising:
- a triac;
- and
- a first diode series-connected between the triac and a first terminal of the control device, wherein the first terminal is configured to be connected to a cathode gate of the first thyristor;
- and
- wherein a second terminal of the control device is configured to be connected to an anode of the first thyristor and the first relay terminal;
- wherein the triac has a gate connected to a third terminal of the control device, wherein the third terminal is configured to receive a control signal.
7 more elements
Dependencies are inferred from the claim text.