Fast discharge circuit
AssigneeTexas Instruments Incorporated
InventorsAvinash SHAH, Kashyap BAROT, Sreeram Nasum S
Life of this patent
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Abstract
A circuit incudes: a first transistor; a capacitor; a second transistor; and a second resistor. The first transistor has a current terminal and a first control terminal. The capacitor has a capacitor terminal coupled to the current terminal of the first transistor. The second transistor has a first current terminal, a second current terminal, and a second control terminal. The first current terminal of the second transistor is coupled to the capacitor terminal. The second current terminal of the second transistor is coupled to the first control terminal. The resistor has a resistor terminal coupled to the second control terminal.
Claims20
A circuit comprising:
- a first transistor having a current terminal and a first control terminal;
- a capacitor having a capacitor terminal coupled to the current terminal of the first transistor;
- a second transistor having a first current terminal, a second current terminal, and a second control terminal, the first current terminal of the second transistor coupled to the capacitor terminal, and the second current terminal of the second transistor coupled to the first control terminal;
- and
- a resistor having a resistor terminal coupled to the second control terminal.
A circuit comprising:
- transmitter circuitry;
- a transformer coupled to the transmitter circuitry;
- and
- a discharge circuit coupled to the transmitter circuitry, the discharge circuit including:
- a first transistor having a current terminal and a first control terminal;
- a capacitor having a capacitor terminal coupled to the current terminal;
- a second transistor having a first current terminal, a second current terminal, and a second control terminal, the first current terminal of the second transistor coupled to the capacitor terminal, and the second current terminal of the second transistor coupled to the first control terminal;
- and
- a resistor having a resistor terminal coupled to the second control terminal.
A circuit comprising:
- a discharge switch;
- and
- control circuitry coupled to the discharge circuit and configured to:
- perform first voltage level adjustments of the control circuit responsive to a control signal having a first state;
- control the discharge switch responsive to the control signal having a second state and the adjusted voltage levels;
- and
- perform second voltage level adjustments of the control circuit after a discharge interval is complete.
Dependencies are inferred from the claim text.