ขาย Sunyima Pure Sine Wave บอร์ดแปลงสัญญาณอินเวอร์เตอร์ Ka7500C / Tl494 ราคาที่ดีที่สุด

1:Temperature 2:Undervoltage/high voltage buzzer 3:VCC+12V(High and low pressure sampling feet) 4:Fan control 5:VFB(High voltage feedback foot) 6:GND 7:+12V(IC supply pin) 8-9:Drive output 10:IFB mos tube Rds detection, overcurrent protection detection Over-current protection follows the 8-9-pin mos tube, the wrong connection will not boot Brief description of protection functions: 1. Undervoltage alarm--When the DC input low voltage buzzer sounds intermittent alarm, 2. Low voltage protection - When the DC input voltage is low, the buzzer will sound a pleasant alarm. The inverter board will automatically cut off the output. To protect your battery from damage due to severe discharge. 3. High voltage protection - When the DC input voltage is higher, the inverter small board will automatically cut off the output to protect the inverter. 4. Overload protection---When the load you load exceeds the rated power, the buzzer will sound a pleasant alarm after 3 seconds - 5 seconds, and the inverter small board will automatically cut off the output to protect the inverter. Device. 5. Output short-circuit protection---When the load you load exceeds 2 times of rated power or the output is short-circuited, after 1 second - 2 seconds, the buzzer will sound a pleasant alarm, and the inverter board will automatically Cut off the output to protect the inverter. 6. Temperature protection control---When the machine is working, the fan of the inverter starts to work by power and temperature control, otherwise it does not work. This is to reduce the serious discharge of the battery during the static operation of the inverter. When the machine is working, when the surface temperature of the outer casing exceeds 60 °C--70 °C, the buzzer will immediately emit a pleasant alarm sound, and the inverter small plate will automatically cut off the output to protect the inverter. Notice please!!! This product is a special commodity and needs to understand related technologies,If you do not understand electronic technology, please don't buy!!!