LSW AC Power Regulator with Zero Crossing

AC Power Regulator with Variable Cycle (CYC)

The LSW series integrated power regulators utilize advanced zero-crossing output technology, providing improvements over traditional voltage control methods. The current turns on and off in accordance with the sinusoidal waveform, ensuring stable and evenly distributed output power. This technology enhances control precision, efficiency, reduces energy consumption, and minimizes wear on electrical devices, making it ideal for industrial electric heating applications.

Additionally, it offers various control methods, flame-retardant housing, compact dimensions, quiet operation, and long lifespan. The built-in transformer eliminates the need for external DC power supply. The CYC mode ensures minimal harmonic distortion.

Control Methods:

• Input Voltage Control (Power Setting): 0-5V, 0-10V
• Input Current Control (Power Setting): 4-20mA
• Manual Potentiometric Control (Power Setting): 10kΩ
• PWM Control - The input period of PWM must be 25 cycles and the maximum voltage is 4-24Vdc, with a high duty cycle corresponding to the percentage output voltage of the module.
• LED Indicators: POW, OUT, ALM three-color indicator light

Output Parameters:

• Nominal Operating Voltage: 380±10%Vac
• Power Frequency: 47-63Hz
• Transient Current (one-week operation on the network): 800%
• Minimum Load Current: 100mA
• Leakage Current in Off State: <10mA
• Static Rise Voltage Rate dVs/dt: >6200V/µs (improved type)
• Voltage Switching Rise Rate: dVc/dt>6200V/µs (improved type)
• Response Time for Adjustment: <10ms
• Maximum Turn-off Delay: <10ms
• Output Voltage Drop in On State: <1.2Vac

Additional Parameters:

• DC Breakdown Resistance (between input, output, and external circuit) >>2000 Vac
• Insulation Resistance (between input, output, and housing): 1000 MΩ (500Vdc)
• Ambient Operating Temperature: -40°C to +60°C
• Cooling Method: heat sink, air cooling by fan
• Protection Method: protection against reverse connection of control inputs
• Fan Operating Voltage: 220Vac

There are two control modes: periodic zero crossing (PWM pulse width control) and cyclic zero crossing (CYC variable cycle regulation).