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Low-voltage Protection Circuit And Short Circuit Protection Circuit
Jun 04, 2018

Inverters convert DC energy (batteries, storage batteries) into AC (typically 220V, 50Hz sine wave). It consists of an inverter bridge, control logic, and filter circuits. Widely used in air conditioning, home theater, electric grinding wheel, electric tools, sewing machines, DVD, VCD, computers, televisions, washing machines, range hoods, refrigerators, video recorders, massagers, fans, lighting and so on. In foreign countries, because of the high penetration rate of automobiles, they can use inverters to connect storage batteries to drive electrical appliances and various tools to work outside or travel. The on-board inverter output through the cigarette lighter is 20W, 40W, 80W, 120W to 150W power specifications. Larger power inverters are connected to the battery via the cable. Connecting home appliances to the output of the power converter enables the use of various appliances in the vehicle. The electrical appliances that can be used are: cell phones, laptops, digital video cameras, cameras, lights, electric razors, CD players, game consoles, PDAs, power tools, car refrigerators, and various travel, camping, medical emergency appliances Wait.

The inverter is a DC to AC transformer. In fact, the converter is a voltage inversion process.

The converter is to convert the AC voltage of the power grid into a stable 12V DC output, and the inverter is to convert the 12V DC voltage output by the Adapter to a high-frequency AC voltage; the same applies to the pulse widths used in both parts. Modulation (PWM) technology. The core part is a PWM integrated controller, Adapter UC3842, inverter uses TL5001 chip. TL5001 operating voltage range 3.6 ~ 40V, its internal error amplifier, a regulator, oscillator, PWM control with dead-zone control, low-voltage protection circuit and short circuit protection circuit.


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