23-51 SURSĂ REGLABILĂ DE TENSIUNE ÎN COMUTAȚIE
ADJUSTABLE IN COMMUTATION VOLTAGE SOURCE
The paper presents an adjustable in commutation self-oscillating voltage
source which permits the control of the output voltage through a digital
command. The command can be made from a PC or from a microcontroller
module that controls a specialized integrated circuit, namely UC3842B. This
forms variable duration pulses of the in commutation transistor according to the
input signal.
The source has galvanic isolation in the feedback loop to assure safety.
Cuvinte cheie: sursă în comutaţie, comandă digitală, optocuplor, buclă
de reacţie, conversie analog-numerică
Keywords: source commutation, the digital command, optocoupler,
reaction, the conversion loop analog-digital