For powering various electrical appliances, energy is needed, but they consume it in an alternating current format. However, each other users are different. Therefore, it is important that the transmitted current is the necessary type.
For the work of certain consumers, it is necessary precisely alternating, and for other - permanent.
And in order to translate one to another, a special device is needed - rectifier.
In essence, this is a semiconductor energy converter. Such devices are used to transform alternating current to constant (straighten with sinusoid). The device is connected in the chain between the user device and the power source.
The need to use rectifiers occurs if electricity is required from the AC Network.
Use and appointment
The current rectifiers are actively used to ensure the work of various devices:- computer power supplies;
- uninterrupted;
- Charger for laptops and mobile phones;
- electric drives;
- substations;
- electronic circuits, etc.
In other words, even for the functioning of any mechanism, which requires direct current from the network with variables, it is necessary to fit. However, it is worth choosing a rectifier.
Features and species
The main task of the device is to equalize the electrotock, and if only this function is provided, the rectifier with two uncontrollable valves are built (called diodes). However, when the device is used to regulate the voltage indicator, which enters the consumer, the principle of the design is different.
In such cases, a rectifier with controlled valves (thyristors) is used. Connecting such devices, in particular, DC electric motors require.
The valve control option allows you to set the rotor speed parameters.
The aggregates are distinguished and depending on the power supply and power level. According to the first parameter, they are three- and single-phase. On the second sign, rectifiers differ on:
- powerful;
- power;
- With small measurement indicators.
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The pulsation parameters are also taken into account: coefficient, frequency and power. Pick them according to the technical indicators of consumers. Before buying the device, you must pay attention to these characteristics and compare them with the requirement of the device-consumer.
Rectifiers are also used for charging, collector transistors, lead-acid batteries. PowerElectro.ru - here you can purchase devices themselves, and other electrical appliances, including acb of different manufacturers. Buy better aggregates assembly, which will optimize and quickly improve their work.
Features and principle of operation
The work of the simplest unit is based on the use of the properties of diodes to produce electricity in a single direction. At the same time, passing through itself a sinusoidal wave, the device "cuts off". Positive getting goes to the scheme, and negative - disappears, its "quit" diode.
Electrotocks, which is obtained due to this operation, the name of one-alpiperium pulsating is called. Diode passes it only half. In this case, the electrotocks strongly pulsates, the indicators will jump from 0 to the maximum parameter.
Two-mode models of rectifiers include a diagram of four diodes. They are connected so that both parts of the wave fall to the scheme.
However, the negative trim "turns over". This current is also pulsed, but the diagram is two-wire, and the oscillations will be less power.
In this case, such aggregates are 2 single-alpipes, which are included on the counter-parallel principle relative to each other.