An inverter is a device that converts direct current into alternating current. It consists of inverter bridge, control logic and filter circuit.
A brief introduction to the working principle of the inverter
The input part has 3 signals, 12V DC input VIN, work enable voltage ENB and Panel current control signal DIM. VIN is provided by the Adapter, and the ENB voltage is provided by the MCU on the motherboard. Its value is 0 or 3V.
When ENB=0, the Inverter does not work, and when ENB=3V, the Inverter is in normal working state; while the DIM voltage is provided by the motherboard, The variation range is between 0-5V.
When different DIM values are fed back to the feedback end of the PWM controller, the current provided by the Inverter to the load will also be different. The smaller the DIM value, the larger the current output by the Inverter.
Voltage start circuit:
When ENB is at high level, it outputs high voltage to light the panel's backlight tube.
PWM controller:
It has the following functions: internal reference voltage, error amplifier, oscillator and PWM, overvoltage protection, undervoltage protection, short circuit protection, output transistor.
DC conversion:
A voltage conversion circuit is composed of a MOS switch tube and an energy storage inductor. The input pulse is amplified by a push-pull amplifier and then drives the MOS tube to switch, so that the DC voltage charges and discharges the inductor, so that the other end of the inductor can get an AC voltage.
FAQ
Q1: Does your company also provide other solar products except for Pure Sine Wave Inverter?
A1: Yes, we also provide other solar products, like MPPT Solar Controller, poly solar panel, off-grid solar inverter, on-grid inverter, battery, portable solar system, solar charger, and other accessories related to the solar power system.
Q2: How to choose the right inverter?
A2: Tell us your demand, then our sales will recommend a suitable inverter for you.
Q3: How about the delivery time?
A3: 5 days for sample; 7-15 days for bulk order.
Q4: What is the warranty for the inverter?
A4: 2-year warranty.
Q5: How to solve the technical problem?
A5: 24 hours after-service consultancy just for you and to make your problem to solve easily.
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