What is a car stabilizer?
A car voltage stabilizer is a power supply circuit or power supply device that can automatically adjust the output voltage. There are batteries and generators for the power supply of the car. Before the car starts, it is powered by the battery, and the voltage is between 12V and 12.6V. After the car is started, the engine drives the generator to supply power, and the power supply voltage is between 13.3V and 14.8V. The voltage varies according to the model and the working state of the vehicle.
The battery power supply mainly ensures the basic circuit power supply functions when the car is not started, such as ECU and instrument panel power supply, lighting, etc., and also provides protection for starting the engine. After the engine is started, the generator is put into operation because its output voltage is higher than the maximum voltage of the battery. Therefore, the battery originally in the power supply state is turned into a charged state, and the power supply circuit of the vehicle is guaranteed to be powered by the generator. The working states of the engine include: idling, shifting, accelerating, decelerating, and cruising, as well as the occasional short-term load of the car air conditioner, which will affect the engine and cause the speed to change, and the corresponding generator speed will also fluctuate.
Unlike the battery, the generator has no power reserve, and its power is instantaneously converted by the kinetic energy of the engine; therefore, any load change in the circuit, regardless of the magnitude of the change and the length of time, must be responded to and undertaken by the generator. The delay of the power supply response of the generator will lead to voltage fluctuations, which will deteriorate the power and handling performance of the vehicle.
Does the main power supply circuit of the car power supply need a voltage stabilizer? Yes!
Car stabilizer functions
- Stabilize the power supply voltage when the car starts or the power supply voltage when the electric appliances work on the car, and stabilize the voltage that fluctuates greatly and cannot meet the requirements of the electrical equipment within its set value range so that all kinds of circuits or electrical equipment can work normally under the rated voltage.
- The electrical appliances in the car such as audio, car radio, car air conditioner, etc. are powered by the car power supply. Because the driving of the car will affect the car circuit, the voltage of the car circuit will be unstable. If a voltage stabilizer is not installed, the circuit Instability will affect the state of the electrical equipment: For example, the sound of the speaker will become higher and lower for a while.
- The installation of a car stabilizer can maintain the normal operation of the vehicle’s electrical appliances. The control circuit performs sampling, comparison, and amplification, and then drives the servo motor to rotate, so that the position of the carbon brush of the voltage regulator changes, and the coil turns ratio is automatically adjusted. , so as to keep the output voltage stable. In addition, the voltage stabilizer for the car can stabilize the circuit required for starting, so that the ignition is stable and effective.
How to choose a voltage stabilizer for car?
At present, there are many brands of car voltage stabilizers on the market with different specifications. Do all power stabilizers work?
The efficacy of the voltage stabilizer for a car depends on its storage capacity and response speed. The storage capacity is determined by the capacity of the capacitor in the voltage stabilizer. The capacity of the current popular voltage stabilizer is in the range of 2,000uF to several F (1F=1,000,000uF). The electronic rectifier is generally around 15,000uF, and the cigarette lighter type electronic fuel saver is around 2,000~5,000uF. The reaction speed depends on the type of capacitor used. The fastest reaction is the ceramic dielectric capacitor, followed by the polymer dielectric high-speed electrolytic capacitor, and the slowest is the general-purpose electrolytic capacitor. The popular voltage stabilizers on the market generally use general-purpose electrolytic capacitors.
1. The capacitance of the voltage stabilizer is less than 20,000uF, which has no obvious effect on the executive parts of the car, but is only good for the stable reading of the sensor, and there is no feeling when driving.
2. When the capacitor of the voltage stabilizer reaches 60,000uF or more, it starts to stabilize the short-term (less than 1ms) executive components such as the electronic fuel injection amount, and also supplements the current of the ignition drive. There is a clear feeling when driving, and the power has been improved, especially for small-displacement sedans.
3. The capacitance reaches 1F, which provides a significant improvement for the stable operation of the ignition module and other driving components for a long time (2-6ms), and the power-boosting feeling is obvious; the ignition intensity, stability and reliability are improved.