The circuit board of the inverter mainly includes the power board, control board, drive board, panel

One. The resistor

The resistance resistor in the circuit board with the letter R, the unit is: ohm (Ω), kilohm (K Ω), megohm (MΩ) resistor symbols:

1. According to the characteristics of the resistance value can be divided into fixed resistors, adjustable resistors, special resistors

2. According to the material can be divided into carbon film resistors, metal film resistors, wirewound resistors, non-inductive resistors, thin-film resistors, etc.

3. According to the installation method can be divided into plug-in resistors, chip resistors

4. According to power is divided into load resistors, sampling resistors, shunt resistors, protection resistors, etc.

Two .Capacitor

Capacitor with the ability to store electrical energy components, mainly used for filtering, coupling, resonance, and our inverter circuit boards will be used in these functions, naturally, capacitance is indispensable.

Three. Inductor

Inductor (inductor coil) and transformer are insulated wire (such as enamelled wire, yarn wrapped wire, etc.) wound into the electromagnetic induction components.

According to the use of classification, there are oscillating inductors, correction inductors, tube deflection inductors, current-blocking inductors, filtering inductors, isolation inductors, inductors are paid.

Four. the diode

Diode is a power electronic components with on-off switching ability, by combining the P-type semiconductor and N-type semiconductor together, when given a forward voltage when the conduction.

Five. Triode

The full name of the triode should be semiconductor transistor, also known as bipolar transistor, crystal transistor, is a kind of current control current semiconductor devices. Its role is to amplify the weak signal into a larger spoke value of the electrical signal, also used as a non-contact switch.

1):According to the material: silicon tube, germanium tube

2): According to the structure: NPN, PNP

3): By function: switching tube, power tube, Darlington tube, photosensitive tube, etc.

4): According to the power points: low-power tubes, medium-power tubes, high-power tubes

5): According to the operating frequency: low-frequency tube, high-frequency tube, ultra-frequency tube

6): According to the structure of the process: alloy tube, plane tube

7): According to the installation mode: plug-in transistor, chip transistor

Six.IGBT

IGBT (Insulated Gate Bipolar Transistor), insulated gate bipolar transistor.

Is composed of BJT (bipolar transistor) and MOS (insulated gate field effect tube) composite full-control voltage-driven power semiconductor devices.

Seven. optocoupler

It is through the light to transmit electrical signals to the device, usually the light source (light-emitting diode) and light receiving unit (photosensitive semiconductor tube) encapsulated in the same shell. When the light emitter sends out light, light receiving unit accepts light after the photocurrent, from the output out, thus realising the ‘electricity - light - electricity’ conversion.

Eight. crystal vibration

Crystal vibration is generally called crystal resonator, is an electromechanical device, is a very small electrical loss of quartz crystals by precision cutting and grinding and plating electrodes welded on the lead made. Nine, the other components are multi-pin chips, digital tubes, LCD tubes, relays, buzzers and so on.