What are the types of AC regulated power supply
What are the types of regulated power supplies
Regarding the model and type of regulated power supply, it can generally be divided into four categories. DC, AC, inverter and switching regulated power supplies. For these four different types of regulated power supplies. Although there are some similarities in their working methods and principles, there are also many differences. The following three sections will introduce these four different models and types of regulated power supplies in detail.
The first category is AC regulated power supply, AC is divided into single-phase and three-phase regulated power supply, and can also be divided into contact and non-contact regulated power supply. In practical applications, it can be summarized as the following classifications of commonly used AC regulated power supplies:
①Ferromagnetic resonance AC voltage regulator. Composed of saturated choke coils and corresponding capacitors, it has constant voltage and voltage characteristics.
②Magnetic amplifier type AC voltage stabilizer. The magnetic amplifier and the autotransformer are connected in series, and the electronic circuit is used to change the impedance of the magnetic amplifier to stabilize the output voltage.
③Sliding AC voltage stabilizer. The output voltage is stabilized by changing the position of the sliding contact of the transformer.
④ Inductive AC voltage regulator. By changing the phase difference between the secondary and primary voltages of the transformer, the output AC voltage is stabilized.
⑤Thyristor AC voltage regulator. Thyristors are used as power adjustment components. High stability, fast response and no noise. However, it may cause interference to communication equipment and electronic equipment. After the 1980s, three new types of AC stabilized voltage sources appeared: compensated AC voltage stabilizer. Numerically controlled and stepping AC voltage regulators. Purified AC voltage stabilizer. It has a good isolation effect and can eliminate the spike interference from the power grid.
The second category is the DC regulated power supply:
Also known as DC regulator. Its power supply voltage is mostly AC voltage. When the voltage of the AC power supply voltage or the output load resistance changes, the direct output voltage of the regulator can remain stable. The parameters of the voltage regulator include voltage stability, ripple coefficient and response speed.
The third category is the inverter regulated power supply
The so-called inverter regulated power supply is also called variable frequency power supply. This variable frequency power supply is controlled by 16-bit Motorola processor, high-frequency PWM design, and driven by imported Mitsubishi 1GBT. The efficiency is more than 85%. Fast response, for 100% unloading/loading, the voltage stabilization response time is within 2ms. The variable frequency power supply has strong overload capability, and the instantaneous current can withstand 300% of the rated current. The waveform is pure, the frequency is high and stable, and no interfering magnetic waves (EMI, EMC) are generated. The variable frequency power supply is not only the best power supply for R&D, laboratories, and measurement rooms, but also the standard power supply for EM/EMC/safety testing.
The fourth category is switching regulated power supply
The schematic diagram and equivalent functional block diagram of the switching regulated power supply, which is composed of a full-wave rectifier, a switching tube V, an excitation signal, a freewheeling diode Vp, an energy storage inductor and a filter capacitor C. In fact, the core part of the switching regulated power supply is a DC transformer.
There is also a digitally controlled regulated power supply:
Numerically controlled regulated power supply: it takes samples at the output of the equipment through the observation area, and compares and checks the current voltage with the rated voltage. If the comparison is negative, the data is sent to the central processing unit (CPU), and the central processing unit makes a voltage increase. The command. At the same time, the detection area detects whether the semiconductor has been turned on or off. After confirming that it is correct, the central processing unit makes a voltage plus command to control the work of the semiconductor, so as to reach the standard of the rated voltage. If the value is positive, the central processing unit will make a command to reduce the voltage, and the whole process will be digitized in only 0.048 seconds.
Regarding regulated power supply, Sanke has been operating in the industry of regulated power supply and voltage stabilizer for many years, so it can be said that it is very familiar with this product. Moreover, the product performance and technical content of Sanke's voltage stabilizers and regulated power supplies can gain a very good reputation in the same industry. Years of technical experience and the trust and support of many users have enabled Sanke Power to develop and gradually mature in the industry of regulated power supply and voltage regulator. Sanke believes that we have the trust and support of all new and old customers. Sanke will surely shine in the same industry. To provide partners with higher quality and cheaper voltage regulator power supply.
