Miscellaneous active electrical nonlinear devices – circuits – and – Signal converting – shaping – or generating – Current driver
Patent
1996-10-24
1998-10-27
Wells, Kenneth B.
Miscellaneous active electrical nonlinear devices, circuits, and
Signal converting, shaping, or generating
Current driver
327170, 327540, H03K 300
Patent
active
058282459
ABSTRACT:
A driver circuit with an amplifier operated in a switching mode has threshold detectors with devices to compare the amplifier input and output voltage respectively to predetermined minimum and maximum levels representing fully off and fully on conditions for the driver circuit. The circuit provides signals to enable the amplifier to draw current from a supply only during transitions between the threshold levels and to otherwise disable the amplifier. The circuit is beneficial particularly when operating the amplifier from a voltage supply of very limited current capability, such as a charge pump voltage in an integrated circuit. The switching mode amplifier can be applied in high performance driver integrated circuits alone or in combination with innovative techniques for slew rate control and for preslewing the amplifier output that also provide high performance in compact circuit configurations.
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Gariboldi, "Motion Control," appearing in Smart ICs, Murari et al., Eds., 1995, Ch. 5, pp. 225-283.
Grebene, Bipolar and MOS Analog Integrated Circuit Designs, 1984, Sec. 4.1 pp. 171-183, and Sec. 6.2, pp. 271-277.
Brambilla Massimiliano
Colli Gianluca
Galanthay Theodore E.
Jorgenson Lisa K.
STMicroelectronics Inc.
Telfer Gordon H.
Wells Kenneth B.
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