Tag: dc power supply

In modern electronic devices, different circuit modules often require different voltages to operate properly. For example, a microprocessor may require a stable 1.2V core voltage, a touchscreen may require a 3.3V drive voltage, and a motor may require 12V or even higher. However, our power supplies—whether batteries, adapters, or solar panels—typically only provide a fixed voltage (such as a 5V USB port or a 12V battery). So, how can we obtain these diverse, stable, and precise voltages from a single power source? The answer is the DC-DC converter.

A variable DC power supply is a practical device that can adjust its output voltage based on demand. It's widely used in electronics experiments, lighting control, and regulating electric heating equipment. This article describes a simple method for making a 0-220V adjustable DC power supply, suitable for applications such as adjusting the brightness of an incandescent bulb or the temperature of a soldering iron.

A Poe injector refers to a device that can provide network power supply to remote-powered terminals (such as wireless APs, network cameras, etc.) through network cables. It is a common power supply device in PoE Poe injector systems. To ensure its performance, safety, and stability at work, and to provide customers with a better user experience, we need to conduct a series of tests on the PoE Poe injector. The following is the test content of the PoE Poe injector, I hope it will be helpful to you.

Power over Ethernet (PoE) splitters are essential devices that enable the separation of power and data signals in network installations. When troubleshooting issues with PoE splitters, it's crucial to identify and address the root cause promptly. This comprehensive guide edited by ATO industrial automation provides a step-by-step approach to diagnosing and resolving common problems associated with PoE splitters.

A Power over Ethernet (PoE) splitter is a device used to transmit both power and data over the same network cable. So, how do you choose a PoE splitter? In this article, ATO industrial automation will introduce the factors you should consider and how to make the selection based on your needs.

In the intricate landscape of network technology, Power over Ethernet (PoE) splitters emerge as transformative devices, seamlessly blending simplicity with efficiency. As key players in modern connectivity, these devices play a pivotal role in revolutionizing how we power and communicate across networks. In this article, ATO industrial automation will introduce the components, working principles, advantages and applications of POE splitter.

Linear DC power supply is to first reduce the voltage amplitude of alternating current through a transformer, and then rectify it through a rectifier circuit to obtain pulsed direct current, and then filter to obtain a direct current voltage with a small ripple voltage. To achieve high-precision DC voltage, it must be regulated by a voltage regulator circuit.

Many of you are familiar with electroplating rectifiers. Through the electroplating rectifier, the AC power can be changed to DC power, which also shows the importance of the electroplating rectifier. We will encounter some failures in using the rectifier, and this article will introduce the plating rectifier troubleshooting.

The working process of the main circuit of the linear DC power supply is that the input power supply is initially AC stabilized by the pre-stabilizing circuit, and then converted into a DC power supply through the isolation and rectification of the main working transformer, and then under the intelligent control of the control circuit and the single-chip microprocessor controller. The linear adjustment element is finely adjusted to output a high-precision DC voltage source. The linear DC power supply products can be widely used in scientific research, colleges and universities, laboratories, industrial and mining
enterprises, electrolysis, electroplating, charging equipment, etc.

A common feature of linear DC power supply is that its power device regulator tube works in the linear region, and the output is stabilized by the voltage drop between the regulator tubes. Due to the large static loss of the adjustment tube, a large radiator needs to be installed to dissipate it. Because the transformer works on the power frequency (50Hz), the weight is large. The advantages of this type of power supply are high stability, small ripple, high reliability and easy to make multiple channels.

A DC to DC converter is an electronic circuit or electromechanical device that converts a source of direct current (DC) from one voltage level to another. It is a type of electric power converter. Power levels range from very low (small batteries) to very high (high-voltage power transmission). This is ATO DC-DC converter.

A DC-DC converter is a power supply or electromechanical device which can convert a direct current (DC) power source from one level to another. Its power can range from very small (small power source) to very large (high voltage power conversion). Some DC-DC converters have the same reference point for the output voltage and input voltage, while some DC-DC converters have the output voltage isolated from the input voltage.

The DC-DC converter is a voltage converter that effectively outputs a fixed voltage after converting the input voltage. DC to DC converters are divided into three categories: step up DC-DC converters, step down DC- DC converters, and buck-boost DC-DC converters. Three types of controls can be used according to requirements. At present, DC to DC converters are widely used in products such as mobile phones, MP3s, digital cameras, and portable media players.

Plating Rectifier is a rectifier device, which is a high frequency switching power supply device that converts AC to DC. It has two main functions: first, it changes alternating current (AC) into direct current (DC) and supplies load or inverter after filtering; Second, to provide charging voltage to the battery. Therefore, plating rectifier also acts as a charger.

In order to meet your different requirements, ATO provides a series of forced air cooling plating rectifiers, feature with higher efficiency and more reasonable price, continuously adjustable current from 100A to 6000A, three phase four wire 50-60Hz 380V/ 400V/ 415V/ 480V AC input voltage and 10V/ 12V/ 15V/ 24V DC output voltage. (Wide range of 220-1000V AC input, 8-500V DC output and higher output current are customizable). They adopt pulse width modulation (PWM) as the control circuit and world famous IGBT power modules, equipped with standard antiseptic remote controller box, separate the power from plating tank. Compared with the manual operation, it is more reliable and easy to operate.

The plating rectifier adopts high frequency switching pulse technology and has the reasonable product structure and strong reliability. Because of its small size, light weight, high efficiency and high reliability, the power supply has become a new generation of silicon controlled rectifier and has been widely used in various plating solutions in the electroplating industry. Electroplating process includes four aspects: Electroplating solution, electroplating reaction, electrode and reaction principle, and electrodeposition process of metal.

Plating rectifier is a rectifier power supply, which is simply a device that converts AC to DC. It has two main functions: First, it converts AC power to DC power and supplies it to the load after filtering, or to the inverter. Second, it provides charging voltage to the storage battery. Therefore, it also plays the role a charger at the same time.
ATO explains the installation steps of high-frequency electroplating rectifiers for you, so that you can install the rectifier correctly, and operate directly after you turn on the power.

As to the ripple wave of the switching power supply, it certainly exists both theoretically and practically. Generally speaking, here are some approaches restraining or reducing it.
Reducing EMI - diode back connection inductance
The metal shell can be adopted as the shield which is used to reduce the radiated interference of the external electromagnetic field. In order to reduce the electromagnetic interference of the power line input, the power input terminal is equipped with the EMI power line filter, just as the below diagram shows (EMI filter is also named as the power line filter). This is also a method usually used to restrain the high-frequency noise.

Power supply is an important part of the circuit design, and the stability of the power supply determines the stability of the circuit to a large extent. Linear power supply and switching power supply are two common power supplies, and they have a great difference in the principles which determine the difference between the two applications.

Switching power supply (SMPS) is widely used due to its compact size, light weight and high efficiency. But it has its own disadvantage of producing noises, which not only affect the normal operation of the circuit, but also interfere with the neighboring electronic equipment. So how to reduce the noise of SMPS? First of all, we need know where the noise comes from, and then we can eliminate it accordingly.
The noise of switching power supply can be divided into two major categories: one is the interference formed by the internal components of SMPS, and the other is the interference caused by the external factors. There are many sources of noise, such as external interference like lightning, mechanical vibration, poor contact and so on. Besides, improper design of circuit, improper parameter selection of components, unreasonable layout and wiring will also increase the power supply noise.