Miscellaneous active electrical nonlinear devices – circuits – and – Specific signal discriminating without subsequent control – By amplitude
Patent
1994-07-06
1995-12-19
Tran, Toan
Miscellaneous active electrical nonlinear devices, circuits, and
Specific signal discriminating without subsequent control
By amplitude
327104, 327184, 327354, 363 81, H03K 522, G06G 725, H02M 7217
Patent
active
054771714
ABSTRACT:
A full wave rectifier includes an amplifier having a minus input, a plus input and an amplifier output; an input resistor connected between a circuit input and the minus input; and a current bridge having an output terminal connected to the circuit output, a first terminal connected to the minus input and a second terminal connected to the amplifier output. The current bridge includes a first current mirror circuit and a second current mirror circuit. The first current mirror circuit includes a first current source and a second current source, a source end of each current source of the first and second current sources being connected to the first terminal, a drain end of the first current source being connected to the second terminal and a drain end of the second current source being connected to the output terminal. The second current mirror circuit includes a third current source and fourth current source, a source end of each current source of the third and fourth current sources being connected to the second terminal, a drain end of the third current source being connected to the first terminal and a drain end of the fourth current source being connected to the output terminal.
REFERENCES:
patent: 4485348 (1984-11-01), Perkins
patent: 4523105 (1985-06-01), Jose et al.
patent: 4571502 (1986-02-01), Kimura et al.
patent: 4943736 (1990-07-01), Kihara et al.
Menegoli Paolo
Rohrbaugh Mark E.
Anderson Rodney M.
Bachand Richard A.
Jorgenson Lisa K.
SGS-Thomson Microelectronics Inc.
Tran Toan
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