Description
The EBHB-SGP-V1-R2 is a specialized, pre-programmed microcontroller IC used primarily in Microtek Sine Wave Inverters (specifically the EB and Hybrid models, often referred to as V4 or V5 versions).
It is based on the PIC16F722 architecture (or similar PIC series) and acts as the “brain” of the inverter’s control card.
Key Technical Specifications
Package Type: DIP (Dual In-Line Package) with 28 pins.
Clock Speed: Internal 16MHz oscillator.
Operating Voltage: 5V DC (Input to IC); however, it controls systems powered by 12V.
Architecture: Mid-range core with 35 instructions and 8 stack levels.
Peripherals: 11-channel 8-bit ADC (for monitoring battery/load), I²C, SPI, and PWM (for generating the sine wave).
Primary Functions in Inverters
Sine Wave Generation: It generates the Pulse Width Modulation (PWM) signals that drive the MOSFETs to create a clean hybrid sine wave output.
Protection Logic: * Overload Protection: Shuts down the system if the load exceeds capacity (e.g., 700VA).
Low Battery Cut-off: Prevents deep discharge of the battery.
Short Circuit Protection: Monitors output to prevent hardware damage.
Charging Control: Manages the charging stages of the battery when mains power is available.
Monitoring: Constantly checks the input voltage (230\text{V} AC) and switches to “Battery Mode” instantly during a power failure.
