The same function as B is used. It's just necessary to recognize it when using the screen. Different screens require different programs Question 1: If the display cannot be displayed, first test with 5V on one and two pins to see if it is normal. Question: The display screen does not light up Pay attention to the connection method, it requires a driver and a signal to light up
EG8010 dedicated chip for pure sine wave inverter 1. Product Description EG8010 is a digital and fully functional pure sine wave inverter generator chip with built-in dead zone control. It is used in the DC-DC-AC two-stage power conversion architecture or the DC-AC single-stage power frequency transformer boost conversion architecture, and is externally connected to a 12MHz crystal oscillator. It can achieve high-precision, low distortion, and low harmonic pure sine wave 50Hz or 60Hz inverter specific chips. The chip adopts CMOS technology and integrates functions such as SPWM sine generator, dead time control circuit, amplitude factor multiplier, soft start circuit, protection circuit, RS232 serial communication interface, and 12832 serial LCD driver module. 2. Product features *5V single power supply *Pin settings for 4 types of pure sine wave output frequencies: 50Hz Pure sine wave fixed frequency 60Hz Pure sine wave fixed frequency 0-100Hz Pure sine wave frequency adjustable 0-400Hz Pure sine wave frequency adjustable *Unipolar and bipolar modulation methods *Equipped with dead zone control, four types of dead zone times are set for pins: 300nS dead zone time 500nS dead zone time 1.0uS dead zone time 1.5uS dead zone time *External 12MHz crystal oscillator *PWM carrier frequency 23.4KHz *Real time processing of voltage, current, and temperature feedback *Protection functions for overvoltage, undervoltage, overcurrent, and overheating *Response time for pin setting soft start mode 1S *Set output voltage, frequency, and other parameters for serial communication
*External serial port 128 * 32 LCD display module displays information such as voltage, frequency, temperature, and current of the inverter 3. Application field *Single phase pure sine wave inverter *Photovoltaic power generation inverter *Wind power inverter
*Uninterruptible power supply UPS system
*Digital generator system
*Intermediate frequency power supply *Single phase motor speed controller *Single phase frequency converter *Sine wave dimmer *Sine wave voltage regulator
*Sine wave generator