Control device for transistors
First Claim
1. A control device for controlling at least one transistor, referred to as a controlled transistor, comprising:
- said controlled transistor, the latter comprising a control electrode and two other electrodes,a main control circuit connected to the control electrode of the controlled transistor and configured to, according to a main mode of operation, control the state of the controlled transistor and,an auxiliary control circuit configured to, according to an auxiliary mode of operation, inject an auxiliary current opposing the current circulating between the main control circuit and the control electrode of the controlled transistor,wherein the control device also comprises a control circuit of the auxiliary control circuit, said control circuit being configured to block or authorise the auxiliary mode of operation of the auxiliary control circuit depending on the controls of the main control circuit.
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Accused Products
Abstract
The present invention relates to a control device (1) for at least one transistor, referred to as the controlled transistor (3), comprising:—said controlled transistor (3) which comprises a control electrode (Ec) and two other electrodes (E1 and E2),—a main control circuit (5) connected to the control electrode (Ec) of the controlled transistor (3) and configured, according to a main mode of operation, to control the state of the controlled transistor (3) and,—an auxiliary control circuit (11) configured, according to an auxiliary mode of operation, to inject an auxiliary current opposing the current circulating between the main control circuit (5) and the control electrode (Ec) of the controlled transistor (3), characterized in that the control device (1) also comprises a control circuit (15) of the auxiliary control circuit (11), said control circuit (15) being configured to block or authorize the auxiliary operation of the auxiliary control circuit (11) depending on the commands from the main control circuit (5).
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Citations
18 Claims
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1. A control device for controlling at least one transistor, referred to as a controlled transistor, comprising:
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said controlled transistor, the latter comprising a control electrode and two other electrodes, a main control circuit connected to the control electrode of the controlled transistor and configured to, according to a main mode of operation, control the state of the controlled transistor and, an auxiliary control circuit configured to, according to an auxiliary mode of operation, inject an auxiliary current opposing the current circulating between the main control circuit and the control electrode of the controlled transistor, wherein the control device also comprises a control circuit of the auxiliary control circuit, said control circuit being configured to block or authorise the auxiliary mode of operation of the auxiliary control circuit depending on the controls of the main control circuit. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18)
and wherein the second control device is configured to; block the auxiliary operation of the auxiliary control circuit connected to the second controlled transistor when the first control device controls a passage to the looping state of the first controlled transistor, authorise the auxiliary operation of the auxiliary control circuit connected to the second controlled transistor when said second control device controls a passage to the blocking state of the second controlled transistor.
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17. An electrical converter comprising at least one connection (102) comprising a first (K1) and a second (K2) controlled element connected in series and at least one control circuit (100) according to claim 16.
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18. An electrical converter comprising at least one connection comprising a first and a second controlled element connected in series and at least one control circuit according to claim 15.
Specification