Have you ever seen a different voltage in your life? Voltage instability is often encountered things, let's say we occasionally encounter lights flickering situation, this is one of the manifestations of voltage instability, if the voltage is not stable then the damage rate of electrical appliances is very high. So people invented the voltage regulator, with this kind of power equipment, the unstable voltage situation is goodbye from now on. So how much do you know about voltage stabilizers? Do not know the role of the voltage regulator.
Voltage regulator
Voltage regulator is a power supply circuit or power supply equipment that can automatically adjust the output voltage, its role is to fluctuate and not the requirements of electrical equipment, power supply voltage stabilization in the range of its set value, so that a variety of circuits or electrical equipment can be in the rated operating voltage under normal operation.
The initial power regulator relies on the tripping of the relay to stabilize the voltage. When the grid voltage fluctuates, the power regulator's auto-correcting circuit is activated, causing the internal relay to operate. Forcing the output voltage to remain near the set value, this circuit has the advantage of a simple circuit, the disadvantage is that the voltage stabilization accuracy is not high and every time the relay jumps to shift, will make the power supply a transient interruptions and sparks interference. This is a great deal of interference with the reading and writing of computer equipment, which can easily lead to computer error signals, and in serious cases, damage to the hard disk.
High-quality small voltage regulator, most of the motor dragging carbon brush method of stabilizing the voltage, this regulator on the electrical equipment produced by the interference is very small voltage regulator accuracy is relatively high
How much is a household voltage regulator
Home regulators generally use the TSD series can be. Mainly depends on whether it is only with a computer or all the load. If it is a computer with a TSD-500VA will be enough. More than a hundred dollars, if you take all the load. It is better to match a 5000VA. Six hundred dollars or so (prices from the network, for reference only)!
Voltage regulator classification
1, switching regulator
Switching regulator using the output stage, repeated switching "on" and "off" state, and energy storage components (capacitors and inductors). components (capacitors and inductors) to produce an output voltage. It is tuned by adjusting the switching timing based on feedback samples of the output voltage. In fixed-frequency regulators, the switching timing is adjusted by adjusting the pulse width of the switching voltage, which is known as PWM control. In a gated oscillator or pulse-mode regulator, the width and frequency of the switching pulses are kept constant, but the output switching "on" or "off" is controlled by feedback.
2. Linear regulator
LDO?is a linear voltage regulator. A linear regulator uses a transistor or?FET operating in its linear region to produce a regulated output voltage by subtracting the excess voltage from the applied input voltage. The so-called dropout voltage is the minimum value of the difference between the input voltage and the output voltage required for the regulator to maintain the output voltage within ?100mV? above or below its rated value. Positive output voltage of the ?LDO (low dropout) regulator usually use power transistors (also known as transfer devices) as ?PNP.
3, laser cutting machine voltage regulator
According to the use of high-power laser cutting machine requirements, combined with the current situation of China's power supply, should be strictly formulated in line with the use of the laser cutting machine voltage regulator, developed specifically for the stabilization of the AC voltage and the energy-saving products. . When the power distribution network supply voltage fluctuations or load changes, can automatically ensure the stability of the output voltage. The structure of the voltage regulator
On the structure of the voltage regulator, the role of the voltage regulator and the use of voltage regulator precautions have been introduced to you clearly, know the knowledge of these aspects of the voltage regulator after you use the voltage regulator can be used in the right way to use. If you are at home in the case of unstable voltage, you can consider buying a voltage regulator to solve this problem, but we must have brand awareness when buying a voltage regulator, choose a well-known brand of voltage regulator.