technical support


Power supply reliability test

Test description: when the module output is short circuited under various input and output states, the module shall be able to achieve protection or retraction. The module shall be short circuited repeatedly. After the fault is eliminated, the module shall be able to automatically resume normal operation.

2022-09-30

Evaluation of power supply elements

Power supply is not a simple small box, it is equivalent to the heart of active devices, providing energy to components continuously.

2022-09-30

Common SCR application circuit

Thyristors can control the power transmitted to the load. It is usually necessary to change the power supplied to the load according to the load requirements (such as motor speed control and dimmer). In this case, it is not a reliable method to change the power with the traditional adjustable potentiometer because of the high power consumption. In order to reduce this power consumption in high-power circuits, thyristor is the best choice for power control devices.

2022-09-30

Diodes in parallel?

Diodes are often used in work, but why can diodes only be connected in series?

2022-11-14

What is a three terminal regulator?

The principle of three terminal voltage stabilizing tube The three terminal voltage stabilizing tube is a semiconductor device with high resistance until the critical reverse breakdown voltage.

2022-11-14

How to Design RS485 Interface Circuit

1. Schematic Diagram 1. RS485 Interface 6KV Lightning Protection Circuit Design Scheme (RS485 Interface Lightning Protection Circuit) Interface Circuit Design Overview:

2022-11-14

Four types of constant current source circuits

In the improved differential amplifier, the emitter resistance RE is replaced by a constant current source, which not only sets a suitable static working current for the differential amplifier circuit,

2022-11-14

What skills should we pay attention to when amplifying a triode circuit?

The core component of the amplification circuit is the triode, so we should have a certain understanding of the triode. There are many kinds of amplification circuits composed of triodes. Let's explain them with several commonly used ones (as shown in Figure 1). Figure 1 is the basic amplifying circuit of common radiation. What should we know about the amplification path? (1) Analyze the function of each component in the circuit; (2) Emancipate the amplification principle of large circuit;

2022-11-14

LDO model selection principle and parameters

Basic principle of LDO LDO is the abbreviation of Low Dropout Regulator, which means low dropout linear regulator. Low dropout refers to the low value of input voltage to output voltage.

2022-11-14

How to arrange PCB wiring for surge prevention?

Note that when testing the size of the designed surge current in PCB wiring, it is often encountered that the originally designed PCB cannot meet the surge requirements.

2022-11-14