Gate driver circuit for reducing deadtime inefficiencies
First Claim
1. A driver circuit, comprising:
- a first buffer configured to receive a first control signal;
a first transistor coupled to an output node of the driver circuit, wherein a current terminal of the first transistor is configured to receive an output of the first buffer;
a first current mirror;
a second transistor coupled to the first current mirror and the output node, wherein a control input of the second transistor is configured to receive a supply voltage;
a third transistor coupled to the output node and an inverter, wherein a control input of the third transistor is configured to receive the supply voltage;
a fourth transistor coupled to the output node, wherein a control input of the fourth transistor is configured to receive an output of the inverter;
a fifth transistor coupled to the third transistor, wherein a control input of the fifth transistor is configured to receive the supply voltage;
a sixth transistor coupled to the fifth transistor and a second current mirror, wherein a control input of the sixth transistor is configured to receive a second control signal and wherein the second control signal is an inverse of the first control signal;
a current source coupled to the second current mirror and a second buffer;
a seventh transistor coupled to the first buffer, wherein a control input of the seventh transistor is configured to receive an output of the second buffer; and
an eighth transistor coupled to the first buffer and the seventh transistor.
1 Assignment
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Accused Products
Abstract
A driver circuit comprises a first buffer receiving a control signal, and a first transistor coupled to first buffer and an output. A second transistor is coupled to a first current mirror and the output. A third transistor is coupled to the output and an inverter. A fourth transistor receives the inverter'"'"'s output at its control input and is coupled to the output. A fifth transistor is coupled to third transistor. The second, third, and fifth transistors receive supply voltage at their respective control inputs. A sixth transistor receives the control signal'"'"'s inverse at its control input and is coupled to fifth transistor and a second current mirror. A current source is coupled to second current mirror and a second buffer. A seventh transistor receives the second buffer'"'"'s output at its control input and is coupled to first buffer. An eighth transistor is coupled to first buffer and seventh transistor.
4 Citations
14 Claims
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1. A driver circuit, comprising:
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a first buffer configured to receive a first control signal; a first transistor coupled to an output node of the driver circuit, wherein a current terminal of the first transistor is configured to receive an output of the first buffer; a first current mirror; a second transistor coupled to the first current mirror and the output node, wherein a control input of the second transistor is configured to receive a supply voltage; a third transistor coupled to the output node and an inverter, wherein a control input of the third transistor is configured to receive the supply voltage; a fourth transistor coupled to the output node, wherein a control input of the fourth transistor is configured to receive an output of the inverter; a fifth transistor coupled to the third transistor, wherein a control input of the fifth transistor is configured to receive the supply voltage; a sixth transistor coupled to the fifth transistor and a second current mirror, wherein a control input of the sixth transistor is configured to receive a second control signal and wherein the second control signal is an inverse of the first control signal; a current source coupled to the second current mirror and a second buffer; a seventh transistor coupled to the first buffer, wherein a control input of the seventh transistor is configured to receive an output of the second buffer; and an eighth transistor coupled to the first buffer and the seventh transistor. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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Specification