Power controller circuit board development

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.