The difference between contactless regulated power supply and ordinary regulated power supply is mainly reflected in the following aspects:
1. Working principle: The contactless voltage regulator uses an industrial grade industrial control chip as the control core. The output voltage of the regulator is sampled in real-time up to thousands of times per second using a 12Bit ADC. The voltage sampling results are sent to the control core for comparison and calculation with the voltage stabilizing value, and the control signal is output to the driving circuit. Combined with the zero crossing signal, the corresponding thyristor is driven on and off, Thus, the compensation voltage and phase of the voltage compensation circuit can be changed to achieve stable output voltage and achieve voltage stabilization. However, traditional voltage regulators (servo motor type voltage regulators SVC/SBW) rely on the motor to drive carbon brushes to conflict and sample on the surface of the coil, changing the turn ratio of the voltage regulator, thereby changing the compensation transformer voltage and achieving stable output voltage.
2. Performance characteristics: Contactless voltage regulators have advantages such as fast response speed, high voltage regulation accuracy, no mechanical faults, no carbon brush wear, no noise, long service life, high safety, and small size. Traditional voltage regulators, on the other hand, inevitably consume power due to the presence of motors, suffer losses due to conflicts, generate noise, and have problems such as mechanical failures and carbon brush wear.
3. Usage environment: The contactless voltage regulator can visually display the working parameters of load equipment, such as voltage, current, and fault conditions. It is simple and convenient to operate, and can adapt to various harsh environments. It can be widely used in the mechanical processing industry, medical equipment, radio and television communication equipment, etc. However, traditional voltage regulators may have certain limitations in these aspects.