Miscellaneous active electrical nonlinear devices – circuits – and – Gating – Utilizing three or more electrode solid-state device
Patent
1996-12-04
1998-11-10
Callahan, Timothy P.
Miscellaneous active electrical nonlinear devices, circuits, and
Gating
Utilizing three or more electrode solid-state device
327424, 363 58, 363 98, H03K 17687, G11B 509
Patent
active
058349650
ABSTRACT:
An "H" type amplifier circuit uses at least two current mirrors for alternately feeding current into the load in one direction and the other direction. In order to accelerate the turn-on of the current mirrors, a capacitance is associated with each of the two current mirrors. Each capacitance is alternately coupled in parallel with the input of its associated current mirror when this current mirror delivers current, and is coupled to the supply voltage terminals when this current mirror delivers no current. The operation is effected by means of a set of switches.
REFERENCES:
patent: 4511809 (1985-04-01), Allen
patent: 4551772 (1985-11-01), Sliger
patent: 5041773 (1991-08-01), Takahashi
patent: 5309347 (1994-05-01), Poma et al.
patent: 5644484 (1997-07-01), Elango
"150 Mb/s Write Amplifier for Hard Disk Drives with Near Rail-to-Rail Votlage Swing" by H. Veenstra et al, in Proceedings ESSCIRC '95, Lille (FR), 19-21 Sep. 1995, pp. 434-437.
Callahan Timothy P.
Lam T. T.
Rubin Steven S.
U.S. Philips Corporation
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