Free Expert Guides on Power Systems, Circuit Design & Electrical Troubleshooting

Automatic sequential start secondary control circuit

One key start and stop a secondary control circuit by time relay

What is a Power Transistor?Power Transistor definitionThe utility model relates to a bipolar junction transistor that can withstand high voltage and high currentPower Transistor structure composition Three-layer semiconductor Two PN junctionsHow Power Transistor workIn power electronics technology, GTR mainly works in the on-off state. GTR usually operates at positive bias (Ib>0) with large current conduction; Reverse bias (Ib<0) is in the cutoff state. Therefore, a sufficiently large puls

Start and stop secondary control circuit by one contact

What is Bidirectional Thyristor?Bidirectional Thyristor definitionDeveloped on the basis of ordinary thyristor, it can not only replace two reverse polarity parallel thyristor, and only one trigger circuit, is an ideal AC switching device.Bidirectional Thyristor features The gate enables the device to trigger conduction in both directions of the positive and negative main electrodes Bidirectional thyristor gate plus positive and negative trigger pulse can make the tube trigger conduction, there

Secondary control circuit diagram with fault indicating lamp and power light

What is a Thyristor?Thyristor definitionSCR for short, is a high-power electrical component, also known as thyristor. It has the advantages of small size, high efficiency and long life. In the automatic control system, it can be used as a high-power driving device to realize the control of high-power equipment with low-power control. It has been widely used in AC and DC motor speed control system, power regulation system and servo system.Thyristor structureIt is composed of 4 layers of semicondu

Forward and reverse control circuit

Star triangle step-down start circuit diagram

What is an Ultrafast Recovery Diode?Ultrafast Recovery Diode definitionA semiconductor diode with good switching characteristics and ultra-short reverse recovery time is commonly used as a continuous current, absorption, clamping, isolation, output and input rectifier for the switching device of a high-frequency inverter, so that the function of the switching device can be fully brought into play. Ultrafast recovery diode is an important and indispensable device for the development of high-frequ