DRIVE CIRCUIT
First Claim
1. A drive circuit comprising:
- a load circuit arranged between a first node and a second node;
a first series circuit arranged between a first power supply node for supply of a first voltage and a second power supply node for supply of a second voltage, the first series circuit including a first first-type transistor and a first second-type transistor connected in series with the first node therebetween;
a second series circuit including a second first-type transistor and a second second-type transistor connected in series with the second node therebetween;
a bias circuit that generates a first bias voltage to bias the first and second first-type transistors and generates a second bias voltage to bias the first and second second-type transistors;
first voltage applying means for, in a first mode, applying the first bias voltage to the first first-type transistor, applying the first voltage to the second first-type transistor, applying the second bias voltage to the second second-type transistor, and applying the second voltage to the first second-type transistor, the first voltage applying means including a plurality of switches; and
second voltage applying means for, in a second mode, applying the first bias voltage to the second first-type transistor, applying the first voltage to the first first-type transistor, applying the second bias voltage to the first second-type transistor, and applying the second voltage to the second second-type transistor, the second voltage applying means including a plurality of switches.
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Accused Products
Abstract
A drive circuit includes a load circuit, first and second series circuits, a bias circuit, and first and second voltage applying units. The load circuit is arranged between first and second nodes. The first series circuit is arranged between a first power supply node for supply of a first voltage and a second power supply node for supply of a second voltage. The first series circuit includes a first first-type transistor and a first second-type transistor connected in series with the first node therebetween. The second series circuit includes a second first-type transistor and a second second-type transistor connected in series with the second node therebetween. The bias circuit generates a first bias voltage to bias the first and second first-type transistors and generates a second bias voltage to bias the first and second second-type transistors. The first and second voltage applying units each include a plurality of switches.
17 Citations
8 Claims
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1. A drive circuit comprising:
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a load circuit arranged between a first node and a second node; a first series circuit arranged between a first power supply node for supply of a first voltage and a second power supply node for supply of a second voltage, the first series circuit including a first first-type transistor and a first second-type transistor connected in series with the first node therebetween; a second series circuit including a second first-type transistor and a second second-type transistor connected in series with the second node therebetween; a bias circuit that generates a first bias voltage to bias the first and second first-type transistors and generates a second bias voltage to bias the first and second second-type transistors; first voltage applying means for, in a first mode, applying the first bias voltage to the first first-type transistor, applying the first voltage to the second first-type transistor, applying the second bias voltage to the second second-type transistor, and applying the second voltage to the first second-type transistor, the first voltage applying means including a plurality of switches; and second voltage applying means for, in a second mode, applying the first bias voltage to the second first-type transistor, applying the first voltage to the first first-type transistor, applying the second bias voltage to the first second-type transistor, and applying the second voltage to the second second-type transistor, the second voltage applying means including a plurality of switches. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A drive circuit comprising:
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a load circuit arranged between a first node and a second node; a first series circuit arranged between a first power supply node for supply of a first voltage and a second power supply node for supply of a second voltage, the first series circuit including a first first-type transistor and a first second-type transistor connected in series with the first node therebetween; a second series circuit including a second first-type transistor and a second second-type transistor connected in series with the second node therebetween; a bias circuit that generates a first bias voltage to bias the first and second first-type transistors and generates a second bias voltage to bias the first and second second-type transistors; a first voltage applying unit for, in a first mode, applying the first bias voltage to the first first-type transistor, applying the first voltage to the second first-type transistor, applying the second bias voltage to the second second-type transistor, and applying the second voltage to the first second-type transistor, the first voltage applying unit including a plurality of switches; and a second voltage applying unit for, in a second mode, applying the first bias voltage to the second first-type transistor, applying the first voltage to the first first-type transistor, applying the second bias voltage to the first second-type transistor, and applying the second voltage to the second second-type transistor, the second voltage applying unit including a plurality of switches.
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Specification