UF4004 TR

UF4004 is an ultimate single-phased rectifier diode, capable of a maximum repetitive reverse voltage of 400 volts. It is frequently used for general working of power supplies, as well as in various electronic circuit applications with a wide range of current rates, up to 1.5 amps. With its maximally low dynamic resistance, UF4004 provides low forward voltage drop, which makes it an efficient rectifier device. Let\'s now explore the details of its main application areas and working principle.

The application field of the UF4004 is broad, ranging from AC/DC power supplies to TV sets, landline phones, and numerous other electronic circuits. In all of these areas, the power supply primarily makes use of its low drop-out voltage, which essentially secures continuous power flow. Generally, this a rectifier device used for applications where the reverse voltage does not exceed 400V, and working current does not exceed 1.5A.

A rectifier is essentially an electrical device which converts alternating current (AC) to direct current (DC). The UF4004 by itself has the capacity of generating a 1.5 Current Peak (I_PP). A single-phased bridge rectifier device, such as the UF4004, is a straightforward design, making use of four diodes arranged in a closed loop circuit. The full-wave bridge rectifier is by far the most popular rectifier design.

To better understand the working principle of the UF4004, first let us take a look at how a full-wave bridge rectifier works with AC current. When an AC source is connected to the input of the circuit, two diode conducts, while two diode are reversed biassed. This creates a full-wave pulsating DC voltage at the output, which is twice the peak voltage of the AC source. This can be calculated using the following formula:

V_dc = 2V_p

In the UF4004 rectifier, the four diodes alternate in pairs, so that when two of the diodes have their anode connected to the positive terminal of the AC source, the other two diodes have their anode connected to the negative terminal. Thus, when a single phase AC source is connected to this circuit, the diodes are circuit automatically alternate every 0.063s.

In both scenarios, two of the four diode would be turned on in each changing frequency. This makes it a full wave rectifier device, which doubles the rectification potential of the device. Because the diodes are continuously switched and turned on through the full wave bridge, the anode and cathode terminals constantly alter their polarities. Hence, a pulsating, smooth DC waveform is obtained at the output.

To summarise, the UF4004 is a single phase rectifier diode which is mostly employed for working in AC/DC power supplies and a variety of electronic circuits. Here it is primarily used to deliver low dropout voltage, ensuring a continuous current flow. All of this takes place by making use of a full-wave bridge rectifier design, which in turn creates a smooth current waveform achievable through the switching of four diodes.