In the actual operation of the use of DC power supply, customers often encounter many problems, such as the output voltage without current, or current without voltage, so how should we deal with this situation?

DC/DC refers to the device that converts the DC power supply of a certain voltage level into the DC power supply of other voltage levels.

The development of DC regulated power supply has a history of several decades, and has evolved from discrete devices to integrated circuits. Integrated voltage regulator circuit has the advantages of small size, light weight, less power consumption, long life, etc. With the development of power integrated circuit, integrated voltage regulator circuit has a number of varieties, a variety of models come out, according to the output voltage, output current to form a series of products, has become the mainstream product of DC voltage regulator power supply, especially suitable for small electronic equipment. At present, there are many kinds of DC regulated power supplies, which can be classified from different perspectives

thermal vacuum test refers to the test to verify the various performance and function of the device and the whole machine under vacuum and certain temperature conditions, which is composed of cold immersion, hot immersion and temperature change process. During the simulation test, the specimens are mostly in working state and their working parameters and environmental parameters are measured. Cold dipping is to make the specimen at the specified minimum test temperature and stay for the specified time; Hot dipping is to make it at the specified test maximum temperature and stay for the specified time. Start from room temperature to the specified minimum test temperature, cold immersion and then rise to the specified maximum test temperature, practice hot immersion, and finally return to room temperature, becoming a temperature cycle.

Control circuit is another important part of switching power supply system. The DC-DC converter needs the control circuit to provide the appropriate drive pulse in order to work effectively. If the control circuit is not perfect, the main circuit design can not play its own function, for example, if the trigger signal of the output of the control circuit is unstable, or there is a false trigger, it may cause the straight through of the switch bridge, resulting in short circuit, thereby damaging the switch component.

Batteries are an energy storage medium and are extremely versatile, and all portable electronic devices need to be equipped with batteries. From everyone's daily life can not be separated from the mobile phone, wearable devices to aerospace and hot new energy vehicles are inseparable from the battery. Equipped with different capacity batteries according to the purpose of the device. How to evaluate the quality of the battery?

Dc power supply has been widely used in aerospace, new energy, electric vehicle electronics and other industries in our daily life, usually used for experiments or aging tests, so what should be paid attention to when using DC power supply

The use of DC power supply is relatively simple, and the main operation is to set the corresponding power supply.

Ideal constant voltage source, no filtering is required at the power outlet. It is true that the filter capacitor can reduce the AC impedance of the power supply. The reason is that the actual power supply always has internal resistance. At the output end of the power supply, a capacitor is added, so that the current that increases instantaneously and maintains a short time can be provided by the capacitor, and the current that decreases instantaneously and maintains a short time can charge the capacitor in the reverse. These instantaneous changes in the current, a large part of the power supply does not need to pass through the internal resistance, directly on the capacitor exchange, therefore, you can reduce the AC impedance of the power supply.

In a fully hybrid vehicle (HEV), the electric motor/generator also acts as an engine starting motor. Three-phase motors are often used as motors/generators. Three-phase motors are powered by three-phase alternating current. In the synchronous motor, a number of pairs of permanent magnets are located above the rotor. Because the three-phase coils are continuously powered, they generate a rotating electromagnetic field that spins the rotor when the motor/generator is used to drive the vehicle.

According to different laser equipment and use, the demand for voltage and power is also different, the general laser current demand is larger, the laser industry in addition to the demand for power indicators, more important is the performance. Because the laser industry environment is relatively harsh, the working temperature will be between -10 and 40 ° C, and the working humidity is large, between 20% and 90%. Laser cutting, laser welding or laser cladding, etc., there is a phenomenon that the powder will be relatively large, and it is a metal powder, which will lead to internal short circuit causing faults or accidents.

A capacitor is a device that holds an electric charge and consists of two adjacent conductors sandwiched between a layer of non-conductive insulating medium. It is usually referred to as the capacity to hold charge capacitance, represented by the letter C. Capacitors are one of the most widely used electronic components in electronic equipment, which are widely used in circuit separation through alternating, coupling, bypass, filtering, tuning loop, energy conversion, control and so on.

The development of automotive electronic technology is reflected in the trend of automobile intelligence, information and electronization, and ultimately achieve the safety, reliability and comfort of the vehicle. One of them is the widespread application of smart keys, whether it is the Remote Keyless Entry system (RKE), or the Passive Keyless Entry system (Passive Keyless Entry) are gradually becoming the standard device on the car.

Wanruida takes you to understand what the role of electronic load is, so that you have a deeper understanding of electronic load.

Electronic load is an instrument that acts as a programmed power absorber. Its main application is to test the DC power supply. However, it can also be used in other applications, such as battery testing during manufacturing or development, solid-state semiconductor high-power component testing, DC motor testing, DC generator testing and solid-state motor control testing.

Two-way DC power supply has the characteristics of two-way energy flow, and two-way two-way DC test power supply also has the characteristics of two-way energy flow, but also has two independent DC output, you can set the voltage, current and other parameters of the two outputs.

When designing and commissioning a prototype power supply board, programmable DC power engineers can improve power efficiency by accurately evaluating performance and efficiency, identifying key power consumption points for power loss, replacing components, or changing the topology, so what methods can be used to test the efficiency of a programmable DC power supply?

With the increasing abundance of various electrical and instrumentation equipment, higher requirements are put forward for the flexibility of power supply applications. Designing a versatile power supply that is flexible, convenient and relatively cheap is becoming more and more required by the market. Therefore, programmable DC power supply began to gradually enter the public's vision, then it is mainly used in what aspects?

Wanruida teaches you how to choose the right DC power supply, several aspects that need to be paid attention to when purchasing.

Do you know the working principle of two-way DC power supply? Today, Wanruida will introduce its main working principle to you: two-way DC power supply is mainly used in a variety of industries such as new energy vehicles, new energy power generation, new energy storage, aerospace, rail transit, general electronics and resistance loads. Two-way DC power supply has the functions of blocking noise, voltage conversion, voltage regulation and maintenance in the power supply system.