Picture Name

中文 English
News Center

News Center

Focus on the industry power field, adhere to the market-oriented

Maintenance and use steps of high-power DC power supply

Release date：2022-07-28

When we use a high-power DC power supply, we should pay attention to the polarity of the DC voltage. If we need to let him output a positive voltage, we must connect the '-' end of the electrical equipment to the '-' end of the terminal' to the positive voltage end. If you need to output a negative voltage, you only need to put the wiring method off and connect it. Before use, first measure whether the power supply is qualified to avoid damage to the equipment during use. In order to ensure the normal use of electrical equipment, it is necessary to test the regulated power supply to make it work stably and reliably.

Of course, there will be some small problems in the process of our use, so I have sorted out some operation steps for the maintenance of high-power DC power supply

(1) Measure the output voltage after rectification

In each DC regulated power supply will have a group or two groups of rectified output voltage, but these rectified output voltage is not normal, then the regulated power supply

There will be a variety of failures, so when we encounter equipment failure, we must first measure whether the rectified output voltage of the relevant device is normal.

(2) Check each working point of the circuit

When we put the rectified output voltage and electronic devices are normal, then we should further check the various operating points in the circuit, where the transistor must have a certain voltage between the collector and the emitter, to meet the requirements, to ensure that the work in the amplification area.

(3) In addition, if the rectifier voltage is stable and the output voltage is not normal, check the components in the circuit, test the integrity of the amplifier tube and the adjustment tube. If it is found to be abnormal, it should be replaced in time.

(4) If the instrument fails, check whether there is obvious damage in the chassis. Check whether the transformer has a burnt smell or moldy situation.

Prev

Waveform characteristics of DC regulated power supply

Picture Name

Take you to understand the operation and maintenance of DC power supply system

Next

Related News

图片名称

05/20 .2024

Principle and precautions of programmable DC power supply

Programmable DC power supply has two programming methods, one is active, the other is passive. The passive programming algorithm is to change the reaction resistance and the input resistance to change the output value. The active programming algorithm is to change the output value of the reference voltage and the current of the reference. Secondly, there is the programming speed of the power supply. Programmable DC power supply has two programming methods, one is active, the other is passive. The passive programming algorithm is to change the reaction resistance and the input resistance to change the output value. The active programming algorithm is to change the output value of the reference voltage and the current of the reference.
图片名称

05/20 .2024

Take you through the seven important components of DC power

Rectifier module system: The power rectifier module is the module that converts alternating current into direct current, usually according to the size of the current. It can be used in parallel with multiple modules. The module itself has perfect protection functions, such as input overvoltage protection, output overvoltage protection, output current limiting protection and output short circuit protection.
图片名称

04/30 .2024

Waveform characteristics of DC regulated power supply

In the DC voltage regulator circuit, the waveform of the output voltage is mainly manifested in two aspects: ripple and noise. Ripple refers to the periodic fluctuation of the output voltage, which is caused by the AC component of the power supply current. In the circuit, the magnitude of the ripple is related to the capacitance value of the capacitor filter and the load current. The smaller the capacitance value, the greater the load current and the greater the ripple. Noise refers to the output voltage of high-frequency random fluctuations, usually by the components of their own noise and power supply current in the high-frequency components caused. In the DC voltage regulator circuit, the size of the noise is related to the phase noise of the components and the quality of the power supply current.

Meiens