Pin set 4 dead time: 300nS dead time, 500nS dead time, 1.0uS dead time, 1.5uS dead time external 12MHz crystal oscillator PWM carrier frequency 23.4KHz the voltage, current, temperature feedback real-time processing overvoltage, undervoltage, overcurrent, overheating protection function Characteristic: 5V single power supply: Pin Set 4 kinds of pure sine wave output frequency: 50Hz pure sine wave fixed frequency 60Hz pure sine wave fixed frequency, 0-100Hz pure sine wave frequency is adjustable, 0-400Hz pure sine wave frequency is adjustable unipolar and bipolar modulation with dead time control. Pin set soft mode 1S response time serial communication to set the output voltage, frequency and other parameters external serial 128 x 32 liquid crystal display module to display the inverter voltage, frequency, temperature and current information., Manufacturer: Jnchdghwa