Non-quasistatic rectifier circuit
First Claim
1. A rectifier circuit comprising a plurality of organic MOS transistors operating in a non-quasistatic mode of operation.
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Accused Products
Abstract
A non-quasistatic MOS rectifier circuit uses a bridge-rectifier configuration using four organic PMOS transistors, an antenna coil to induce a differential input signal, and an output capacitor for filtering the rectified output signal. The VSS or ground-connected transistors are diode-connected with the gate connection on the coil side of the transistor channel. The VDD-connected transistors have gates connected to the opposing VDD-connected transistor source that is connected to the coil. This configuration results in full-wave rectification. The gates are all connected to the coil and thereby become part of the capacitance of the radio frequency parallel resonant network. The transistor gates are then switched at the rate of the radio frequency signal with no delay relative to the coil voltage. Operation of the organic transistors is based on non-quasistatic behavior of the transistor. Non-quasistatic operation results in rectification at a frequency much higher than the quasistatic limit of transistor unity gain bandwidth.
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Citations
20 Claims
- 1. A rectifier circuit comprising a plurality of organic MOS transistors operating in a non-quasistatic mode of operation.
- 14. A method of rectifying an input signal comprising operating a plurality of organic MOS transistors in a non-quasistatic mode of operation to iteratively supply a current pulse to a load capacitor.
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19. A rectifier circuit comprising:
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first and second input terminals for receiving a differential input signal;
an output terminal for providing a rectified output signal;
a first diode-connected organic PMOS transistor coupled between the first input terminal and ground;
a second diode-connected organic PMOS transistor coupled between the second input terminal and ground;
a third organic PMOS transistor having a drain coupled to the output terminal, a gate coupled to the second input terminal, and a source coupled to the first input terminal;
a fourth organic PMOS transistor having a drain coupled to the output terminal, a gate coupled to the first input terminal, and a source coupled to the second input terminal;
an antenna coil coupled between the first and second input terminals for providing the differential input signal; and
a load capacitor coupled between the output terminal and ground for filtering the rectified output signal. - View Dependent Claims (20)
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Specification