Talking about the working principle of telecom pure sine wave inverter

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Talking about the working principle of telecommunications pure sine wave inverter NOV.25,2021

The working principle of the inverter is to control the operation of the entire system through a control circuit. The inverter circuit completes the function of converting direct current to alternating current, and the filter circuit is used to filter out unwanted signals.

The work of the inverter circuit can also be refined as follows: first, the oscillating circuit converts direct current into alternating current; secondly, the coil boosts the irregular alternating current into square wave alternating current; finally, rectification makes the alternating current into a sine wave alternating current through a square wave.

bwitt-telecom-inverter

The working principle of each part of the inverter

1. Input interface part: Chikamu chekupinda chine 3 masaini, 12V dc input vin, Kushanda Kugonesa Voltage Enb uye Panel Yazvino Kudzora chiratidzo Dim. Vin inopihwa neAdapta, uye iyo enb voltage inopihwa nemcu pane amaibhodhi, and its value is 0 kana 3v. Kana Enb = 0, Iyo Inverter haina kushanda, uye apo Enb = 3V, the inverter is in normal working state; while the DIM voltage Provided by the main board, the range of variation is between 0-5V. Different DIM values are fed back to the feedback terminal of the PWM controller. Izvo zvazvino zvakapihwa neiyo inverter kumutoro ichave yakasiyana. Izvo zvidiki kukosha kwekukosha, the current output by the inverter. Yakakura.

2. Voltage start circuit: When ENB is at high level, it outputs high voltage to light the panel's backlight tube.

3. PWM Controller: Ine mabasa anotevera: Yemukati Reference voltage, Kukanganisa Amplifier, Oscilllator uye PWM, over-voltage protection, under-voltage protection, short-circuit protection, output transistor.

4. Dc Shanduko: The voltage conversion circuit is composed of MOS switch tube and energy storage inductor. The input pulse is amplified by the push-pull amplifier and then drives the MOS tube to switch, so that the DC voltage can charge and discharge the inductor, so that the other end of the inductor can be Obtain AC voltage.

5. LC Oscillation uye OutPut Circuit: to ensure the 1600V voltage required for the lamp to start, and to reduce the voltage to 800V after the lamp is started.

6. Output voltage mhinduro: Kana mutoro urikushanda, the sampled voltage is fed back to stabilize the voltage output of the inverter