High voltage high speed amplifier using floating high side...

Details High voltage high speed amplifier using floating high side... High voltage high speed amplifier using floating high side...

2006-03-14

2006-03-14

Nguyen, Long (Department: 2816)

Miscellaneous active electrical nonlinear devices, circuits, and

Signal converting, shaping, or generating

Current driver

C327S112000

Reexamination Certificate

active

07012452

ABSTRACT:
An integrated high-voltage linear amplifier IC with reduced power dissipation, faster operation, and small die size, comprising a low side well and a floating high side well; an error amplifier for receiving a noise signal; a level shifting circuit in the low side well for outputting a current mode error signal based on the noise signal to the high side well in differential current mode for noise reduction; and a drive circuit in the high side well. A voltage/current converter receives a voltage mode error signal based on the noise signal and supplies the current input signal. Current mirror circuitry and the drive circuit in the high side well outputs a sum current derived from the current mode error signal for driving external power devices.

REFERENCES:
patent: 5933034 (1999-08-01), Hastings et al.
patent: 6211706 (2001-04-01), Choi et al.

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