Method and circuit arrangement for switch boost current
AssigneeAnalog Devices International Unlimited Company
InventorDavid Aherne
Life of this patent
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Abstract
A method and circuit arrangement for a solid state switch device is disclosed. In certain embodiment, a solid state switch device comprising a controllable switch comprising a control terminal, a first channel terminal, and a second channel terminal, and arranged to be switched between an off-state and an on-state, wherein in the on-state the switch allows a current to flow between the first channel terminal and the second channel terminal. The solid state switch device further comprising: a first compensation circuit configured to: generate a first boost current based on a voltage difference between the first channel terminal and the second channel terminal; and apply the first boost current to the control terminal to charge a switch capacitance of the controllable switch.
Claims20
A solid state switch device, comprising:
- a controllable switch comprising a control terminal, a first channel terminal, and a second channel terminal, and arranged to be switched between an off-state and an on-state, wherein in the on-state the controllable switch allows a current to flow between the first channel terminal and the second channel terminal;
- and
- a first compensation circuit configured to:
- generate a first boost current based on a voltage difference between the first channel terminal and the second channel terminal;
- and
- apply the first boost current to the control terminal to charge a switch capacitance of the controllable switch.
A method for charging a switch capacitance at a control terminal of a controllable switch, the method comprising:
- determining a voltage difference between a first channel terminal of the controllable switch and a second channel terminal of the controllable switch;
- generating a first boost current based on to the voltage difference;
- and
- applying the first boost current to the control terminal of the controllable switch to charge a switch capacitance of the controllable switch.
A compensation circuit configured to be coupled to a control terminal of a controllable switch, a first channel terminal of the controllable switch, and a second channel terminal of the controllable switch, wherein the compensation circuit is further configured to:
- generate a first boost current based on a received voltage difference between the first channel terminal of the controllable switch and the second channel terminal of the controllable switch;
- and
- output the first boost current for receipt by the control terminal of the controllable switch.
Dependencies are inferred from the claim text.