How Voltage Regulator works
Since some electric appliances contain coil components, eddy currents that hinder current flow are generated at the initial stage of energization. The generation of eddy currents weakens the instantaneous voltage at the start of the electric appliance, resulting in slow start-up, and strengthens the instantaneous voltage generated after the disconnection, which may cause spark damage. Circuit. A voltage regulator is needed to protect the proper operation of the circuit. The voltage regulator is composed of a voltage regulating circuit, a control circuit, and a servo motor. When the input voltage or load changes, the control circuit samples, compares, and amplifies, and then drives the servo motor to rotate, so that the position of the voltage brush of the voltage regulator changes. The output voltage is kept stable by automatically adjusting the turns ratio of the coil. The larger capacity regulator also works on the principle of voltage compensation.
What Function Voltage Regulator is
The voltage regulator is a power supply circuit or a power supply device capable of automatically adjusting the output voltage, and the function thereof is to stabilize the power supply voltage which is large in fluctuation and cannot meet the requirements of the electrical equipment within its set value, so that various circuits or electric appliances are provided. The device can work normally at rated operating voltage. The original power regulator relied on the relay's jitter to stabilize the voltage. When the grid voltage fluctuates, the power regulator's automatic correction circuit is activated to activate the internal relay. Forcing the output voltage to stay near the set value. The advantage of this circuit is that the circuit is simple. The disadvantage is that the voltage regulation accuracy is not high and each relay jumps and shifts, which causes a momentary interruption of the power supply and spark interference. This interferes greatly with the reading and writing of computer equipment, which may cause the computer to have an error signal, and in severe cases, the hard disk may be damaged. High-quality small voltage regulators mostly use a motor to drag the carbon brush to stabilize the voltage. The regulator has little interference to the electrical equipment and the voltage regulation accuracy is relatively high.
Attention
1. When the regulated power supply is powered on, do not disassemble the regulated power supply or pull the regulated power supply input and output connection to prevent electric shock or other electrical safety accidents.
2. The input and output connection of the regulated power supply must be reasonably arranged to prevent the stepping on the wear and cause a leakage accident.
3. The regulated power supply must be reliably grounded. The user is responsible for the electric shock or human injury caused by the operation of the grounding line.
4. The ground wire of the regulated power supply cannot be connected to public facilities such as heating pipes, water supply pipes and gas pipes, so as to avoid infringement of third party rights or harm.
5. The input and output connections of the regulated power supply should be checked regularly to avoid loosening or falling off, thus affecting the normal use of the regulated power supply and the safety of the power supply.
6. The connection of the voltage regulator must be matched to a connection that specifies a sufficient current capacity.
7. The regulator should be handled gently and avoid severe vibration during work;
8. Ensure that the carbon brush spring of the regulator has sufficient pressure to avoid flashover between the carbon brush and the coil contact surface;
9. Non-professionals please do not disassemble the regulated power supply or repair the regulated power supply.
