Power controller circuit board development
The main technical parameters:
1 The rated voltage of the main circuit incoming line: 100V~660V (50HZ) (note the matching of R3, R7, R11)
2 Control power supply: single-phase 17V/2A.
3 Intermediate frequency voltage feedback signal: AC 12V/15mA.
4 Current feedback signal: AC 12V/5mA three-phase input.
5 Phase shift range of rectifier trigger pulse: α=0~130°.
6 Asymmetry of rectifier trigger pulse: less than 1°.
7 Rectified trigger pulse signal width: ≥600μS, double narrow, 60° interval.
8 Rectifier trigger pulse characteristics: trigger pulse peak voltage: ≥12V
Trigger pulse peak current: ≥1A
Trigger pulse leading edge steepness: ≥0.5A/μS
9 Inverter frequency: 400HZ~10KHZ.
10 Inverter trigger pulse signal width: 1/16 × inverter frequency.
11 Inverter trigger pulse characteristics: trigger pulse peak voltage: ≥22V
Trigger pulse peak current: ≥3A
Trigger pulse leading edge steepness: ≥2A/μS
(The trigger pulse transformer of the inverter is external)
12 Dimensions: 238×175×40mm.
13 fault signal output:
When the control board detects a fault signal, it outputs a set of contact signals, the contact capacity is AC: 5A/220V: DC: 10A/28V.