Voltage regulators

Cars are becoming an increasingly common means of transport. In fact, every person at some stage in their life has experience with using a car and must learn how to operate it at least in the basic sense. Many of us can refuel the car, change oil and windscreen washer fluid. We can also handle the radio receiver in the car and we know how to lower or raise the windows. But let's try to remember all the situations when something in our car didn't work and we had no idea what it was about. In such situations we need the support of a specialist. In the long run, however, it is worthwhile to take an interest in deepening our knowledge of how the car works. One of the most important elements in the car is voltage regulator, which is responsible for battery charging systems. Learning about voltage regulators can have a significant impact on your car's handling skills.


  • Converters step-up / step-down Converters step-up / step-down

    Step-up / step-down converters are advanced electronic devices that are successfully used in various production machines, motors and other applications. Step-up / step-down converters are tools that enable the conversion of DC voltage from the power source to DC voltage with a...

  • Converters step-up Converters step-up

    The step-up converters (also known as a boost converters) is an power electronic converter, which is designed to increase the direct voltage (DC) from the source, receiving an appropriately increased DC voltage for the receivers at the output. The main purpose of devices such...

  • Converters step-down Converters step-down

    Step-down converters are pulse inverters whose operation is based on cyclical connection and disconnection of the coil to the power source. It is an electronic circuit whose task is to lower the input voltage. With a step-down converter, many devices can work properly and...

  • Converters high power Converters high power

    We present the category in which you will find converters of high power (above 100 W) – the device intended for raising and lowering the input voltage. In our extensive range of products online store Botland you will find a variety of converters, ranging from people with...

  • Converters with resistor bocznikowym Converters with resistor bocznikowym

    In our offer you will find the voltage regulators resistance bocznikową that protect the power supply from power surges. Designed primarily for power consumption of a maximum of a couple seconds. The tiles are designed for Pro rare and short pulses. Longer jumps the voltage...

  • IC step-up / step-down IC step-up / step-down

    Converters pulse, because the device is hidden under the name chip step-up/step-down, a category in which we offer a range of self-Assembly in your model. These devices serve to convert a DC voltage, what you are doing with high efficiency. And, therefore, the power loss is...

  • The linear stabilizers The linear stabilizers

    A linear stabilizeris a simple electronic component used to stabilize the voltage. The main function of linear stabilizer is to regulate the output voltage to a certain level we want to get. Electronics could not do without this element, as it is very often used to stabilize...

  • Transformers Transformers

    In this category we offer transformers. This name comes from the Latin transformare, means to convert. It converts electrical voltage to recharge the selected components that have different voltage than the output. Here you will find high-quality transformers with different...


Voltage to
Voltage from
Voltage output from
Output voltage to
Stabilizer - Type2
Stabilizer - Type

Products by page

Products by page

How does the voltage regulator work?

A voltage regulator is an electronic or electromechanical system that is used as an element in the battery charging system in motor vehicles. Its task is to keep the voltage generated by the generator or alternator constant despite changes in engine speed. In practice, the voltage is not maintained at a constant level, but to a certain extent, depending mainly on the generator speed, alternator load and current-voltage characteristics of the battery. Adjustment is done by changing the excitation current of the generator. In electro-mechanical systems impulse regulation is used with three levels of excitation (full, partial, off). The electronic circuits use pulsed switching on and off of the excitation current, depending on the voltage at the generator output. In current alternator designs, the voltage regulator together with the brush holding elements forms a whole and is part of the alternator. It is important to recognize at what point the failure may occur.

Check that the voltage regulator works properly

A universal meter or voltmeter is used to control the operation of this component. They help to measure two issues: whether a current is coming from the alternator to the regulator and whether the regulator output generates the correct charging voltage. Please note that checking its operation is only possible with the motor running. In addition, although it may seem that the universal meter is a simple and inexpensive device, there are a few important points to bear in mind. The meter must be correctly set to display reliable results of the voltage control, and, in addition, when checking the regulator, it is important to set the meter to an appropriate DC value. The voltage of this element should be measured in every possible wire configuration. You can check whether its value is correct by comparing its result with the manufacturer's information contained in the service booklet of the car. When replacing the voltage regulator, make sure you have done the research on how to do it and which components can work properly with your car.

Hunting for regulators

When choosing a replacement regulator, it is worthwhile to explore the subject and approach the exchange with care. The regulator should be compatible with our car model and with the trust of customers already gained. Apart from that, it may be essential that it comes from a proven source. In our Botland shop you can find a wide range of top quality regulators, which have been carefully selected from best manufacturers. Botland employees are also passionate about electronics and motoring, so it is extremely important for us to recommend equipment worthy of attention and its price. In our offer you can find step-up, step-down, step-up/step-down systems, bypass voltage regulators and many other products that can be helpful when replacing the regulator. In addition, you can find in our shop converters with USB output, which can be additionally used as phone chargers. Check our offer and you can certainly find what you are looking for - in the best value for money.