Rapid and high voltage pulse generation circuits
AssigneeTexas Instruments Incorporated
InventorJohan Tjeerd Strydom
Life of this patent
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Abstract
In some examples, a circuit comprises a first switch adapted to be coupled to a direct current (DC) power source, a second switch coupled to the first switch and adapted to be coupled to the DC power source, and a resistor coupled to the first and second switches. The circuit comprises a transformer having a primary side and a secondary side, the primary side coupled to the first and second switches, the secondary side adapted to be coupled to a load. The circuit comprises a third switch coupled between the resistor and the primary side of the transformer, and a capacitor coupled to the second switch.
Claims20
A circuit, comprising:
- a first switch adapted to be coupled to a direct current (DC) power source;
- a second switch coupled to the first switch and adapted to be coupled to the DC power source;
- a resistor coupled to the first and second switches;
- a transformer having a primary side and a secondary side, the primary side coupled to the first and second switches, the secondary side adapted to be coupled to a load;
- a third switch coupled between the resistor and the primary side of the transformer;
- and
- a capacitor coupled to the second switch.
A circuit, comprising:
- a first switch having a terminal, the first switch adapted to be coupled to a direct current (DC) power source;
- a second switch coupled to the terminal and adapted to be coupled to the DC power source;
- a resistor coupled to the terminal;
- and
- a transformer having a primary side and a secondary side, the primary side coupled to the terminal and to a third switch, the third switch coupled to the resistor, the secondary side adapted to be coupled to a load;
- the first switch configured to cause a voltage at the terminal to increase during a first interval, causing an increase in a current through the primary side of the transformer, and
- the second switch configured to cause the voltage at the terminal to decrease, causing the current through the primary side of the transformer to resonate during a second interval, the resonance causing a voltage across the secondary side of the transformer to increase at a target rate and to reach a target voltage peak, the target rate based on a resonant frequency of the circuit and the load, the target voltage peak based on a current peak in the current through the primary side of the transformer.
A system, comprising:
- a controller;
- a direct current (DC) power source;
- a capacitive load;
- and
- a circuit coupled to the controller, the DC power source, and the capacitive load, the circuit including:
- a first transistor having a terminal, the first transistor coupled to the controller and to the DC power source;
- a second transistor coupled to the first transistor at the terminal, the second transistor coupled to the controller and to the DC power source;
- a resistor coupled to the terminal;
- a bidirectional switch coupled to the resistor;
- and
- a transformer having a primary side and a secondary side, the primary side coupled to the terminal and to the bidirectional switch, the secondary side coupled in parallel to the capacitive load.
Dependencies are inferred from the claim text.