Title :
An integrated 150-Vpp, 12-V/ns, class-AB CRT-driving amplifier
Author :
Blanken, Peter G. ; Verdaasdonk, Johan P M
Author_Institution :
Philips Res. Lab., Eindhoven, Netherlands
fDate :
12/1/1989 12:00:00 AM
Abstract :
An integrated output amplifier is presented with an output-voltage swing of more than 150 Vpp, a slew rate of 12 V/ns, a large-signal bandwidth of 30 MHz, and a small-signal bandwidth exceeding 60 MHz. The amplifier is intended to drive the cathode ray tube (CRT) in a projection television or a high-definition television (HDTV) set. The amplifier comprises a transadmittance stage followed by a feedback transimpedance amplifier. Application of a zero in the feedback transfer function allows the open-loop voltage gain of the transimpedance amplifier to have a -12-dB/octave slope at the unity-loop-gain frequency. A zero in the transfer function of the transadmittance stage results in a larger overall bandwidth than is possible in a conventional voltage-feedback configuration
Keywords :
BIMOS integrated circuits; colour television receivers; feedback; high definition television; power integrated circuits; video amplifiers; 150 V; 30 MHz; 60 MHz; BIMOS IC; CRT-driving amplifier; HDTV set; HV DMOS technology; cathode ray tube; class-AB; colour TV sets; feedback transfer function; feedback transimpedance amplifier; high-definition television; integrated output amplifier; large-signal bandwidth; open-loop voltage gain; output-voltage swing; projection television; small-signal bandwidth; transadmittance stage; video output amplifier; Bandwidth; Cathode ray tubes; Computer displays; Driver circuits; Frequency; HDTV; Isolation technology; MOS devices; TV; Voltage;
Journal_Title :
Solid-State Circuits, IEEE Journal of
