Title :
MODADEC: a VLSI circuit adapted to any kind of 2 levels PWM modulation
Author :
Koulischer, J. ; Tatakis, Emmanuel ; Eck, J. L Uan ; Bodson, J.M. ; Bingen, G.
Author_Institution :
Univ. Libre de Bruxelles, Belgium
Abstract :
A new VLSI circuit which was developed to drive inverter-fed AC motors is described. It has been conceived as a peripheral of a microprocessor and offers a wide choice of PWM modes and strategies. The steady-state PWM waveforms are generated with high precision on the instant of commutation. The IC has high-frequency performances and can handle different optimizations of transients when changing PWM modes. The circuit is suitable for variable-speed applications, from servo-applications where a high commutation frequency and fast dynamic are required to high-power traction applications, where it is imperative to have smooth transitions and perfect torque control
Keywords :
AC motors; VLSI; integrated circuits; invertors; pulse width modulation; IC; MODADEC; PWM; VLSI circuit; commutation; integrated circuits; inverter-fed AC motors; microprocessor; torque control; traction applications; transients; variable-speed applications; Circuits; Fabrication; Frequency; Microelectronics; Microprocessors; Pulse width modulation; Pulse width modulation inverters; Steady-state; Very large scale integration; Voltage;
Conference_Titel :
Applied Power Electronics Conference and Exposition, 1988. APEC '88. Conference Proceedings 1988., Third Annual IEEE
Conference_Location :
New Orleans, LA
DOI :
10.1109/APEC.1988.10560
