CMOS driver with minimum shoot-through current
First Claim
Patent Images
1. A circuit, comprising:
- a CMOS driver including an output stage and break-before-make circuit configured to drive the output stage, the break-before-make circuit having a first logic element, and a second logic element cross-coupled to the first logic element; and
a logic circuit configured to provide a first input signal having first and second logic states to a first input in each of the first and second logic elements, and provide a second input signal having first and second logic states to a second input in each of the first and second logic elements, the first logic state of the first input signal having a voltage higher than the voltage of the first logic state of the second input signal, and the second logic state of the first input signal having a voltage higher than the voltage of the second logic state of the second input signal.
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Abstract
A CMOS driver with minimum shoot-through current is disclosed. The potential for shoot-through current may be eliminated or reduced with a break-before-make circuit driving an output stage. The break-before-make circuit may include a first logic element followed by a first inverter and a second logic element followed by a second inverter. The inverters may be cross-coupled to one another and/or the internal transistors may be configured with different strengths. The logic elements may be configured to eliminate or reduce potential shoot-through current paths, and the signal inputs may be controlled within a certain voltage range.
18 Citations
9 Claims
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1. A circuit, comprising:
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a CMOS driver including an output stage and break-before-make circuit configured to drive the output stage, the break-before-make circuit having a first logic element, and a second logic element cross-coupled to the first logic element; and a logic circuit configured to provide a first input signal having first and second logic states to a first input in each of the first and second logic elements, and provide a second input signal having first and second logic states to a second input in each of the first and second logic elements, the first logic state of the first input signal having a voltage higher than the voltage of the first logic state of the second input signal, and the second logic state of the first input signal having a voltage higher than the voltage of the second logic state of the second input signal. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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Specification