CALCULATION FOR PHASE ANGLE AT RL CIRCUIT SUPPLIED WITH SQUARE VOLTAGE PULSE
The serial connection of resistor R and inductance L is a basic electronic circuit. This circuit is main circuit in industrial power consumers such as electric motors, induction furnaces, welding devices and other electrical consumers. In the paper analysis of serial RL- circuit supplied by the square voltage pulse is made. The equations for maximum current, time equivalent and phase angle in the serial RL- circuit are derived. For verification of theoretical calculations, a prototype of the bridge converter based on AMega 328P microcontroller was designed. Also, the voltages waveforms in the circuit are represented.