Back to results
US 2012/0235733 A1Published application
Detector circuit
AssigneeFujitsu Semiconductor Limited
InventorHiroyuki NAKAMOTO
Life of this patent
Estimating the term…
Abstract
A detector circuit, has a first diode, to an anode of which an AC signal is input and to which a constant voltage is supplied, a second diode, to an anode of which the constant voltage is supplied, and a difference current generation circuit, which generates the difference current between a first current flowing in the first diode and a second current flowing in the second diode.
Claims20
A detector circuit, comprising:
- a first diode, to an anode of which an AC signal is input and to which a constant voltage is supplied;
- a second diode, to an anode of which the constant voltage is supplied;
- and
- a difference current generation circuit, which generates a difference current between a first current flowing in the first diode and a second current flowing in the second diode.
1 more element
A detector circuit, comprising:
- a first rectifying circuit, which rectifies a voltage resulting by adding a voltage corresponding to an input signal and a first voltage based on a bias voltage;
- a first current detector circuit, which detects a current rectified by the first rectifying circuit;
- a second rectifying circuit, which rectifies a second voltage based on the bias voltage;
- a second current detector circuit, which detects a current rectified by the second rectifying circuit;
- and
- a current difference detector circuit, which detects a difference between a current detected by the first current detector circuit and a current detected by the second current detector circuit.
3 more elements
Dependencies are inferred from the claim text.