Rectifier circuit, power supply circuit, and semiconductor device
First Claim
1. A rectifier circuit comprising:
- a first capacitor;
a second capacitor;
a transistor; and
a diode,wherein the first capacitor, the second capacitor, and the diode are sequentially connected in series between an input terminal and a first output terminal,wherein the second capacitor is connected between one of source and drain regions and a gate electrode of the transistor, andwherein the other one of the source and drain regions of the transistor is connected to a second output terminal.
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Abstract
It is an object of the present invention to provide a rectifier circuit that can suppress deterioration or dielectric breakdown of a semiconductor element due to excessive current. A rectifier circuit of the present invention includes at least a first capacitor, a second capacitor, and a diode which are sequentially connected in series in a path which connects an input terminal and one of two output terminals, and a transistor. The second capacitor is connected between one of a source region and a drain region and a gate electrode of the transistor. Further, the other one of the source region and the drain region and the other one of two output terminals are connected each other.
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Citations
22 Claims
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1. A rectifier circuit comprising:
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a first capacitor; a second capacitor; a transistor; and a diode, wherein the first capacitor, the second capacitor, and the diode are sequentially connected in series between an input terminal and a first output terminal, wherein the second capacitor is connected between one of source and drain regions and a gate electrode of the transistor, and wherein the other one of the source and drain regions of the transistor is connected to a second output terminal. - View Dependent Claims (2, 3, 4, 5)
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6. A power supply circuit comprising:
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a first capacitor; a second capacitor; a third capacitor; a transistor; and a diode, wherein the first capacitor, the second capacitor, and the diode are sequentially connected in series between an input terminal and a first output terminal, wherein the second capacitor is connected between one of source and drain regions and a gate electrode of the transistor, wherein the other one of the source and drain regions of the transistor is connected to a second output terminal, and wherein the third capacitor is connected between the first and second output terminals. - View Dependent Claims (7, 8, 9, 10)
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11. A semiconductor device comprising:
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a rectifier circuit configured to be supplied with an AC voltage from an antenna, wherein the rectifier circuit includes a first capacitor, a second capacitor, a transistor, and a diode, wherein the first capacitor, the second capacitor, and the diode are sequentially connected in series between an input terminal and a first output terminal, wherein the second capacitor is connected between one of source and drain regions and a gate electrode of the transistor, and wherein the other one of the source and drain regions of the transistor is connected to a second output terminal. - View Dependent Claims (12, 13, 14, 15, 16)
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17. A semiconductor device comprising:
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a power supply circuit configured to be supplied with an AC voltage from an antenna, wherein the power supply circuit includes a first capacitor, a second capacitor, a third capacitor, a transistor, and a diode, wherein the first capacitor, the second capacitor, and the diode are sequentially connected in series between an input terminal and a first output terminal, wherein the second capacitor is connected between one of source and drain regions and a gate electrode of the transistor, wherein the other one of the source and drain regions of the transistor is connected to a second output terminal, and wherein the third capacitor is connected between the first and second output terminals. - View Dependent Claims (18, 19, 20, 21, 22)
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Specification