A rectifier is a device that converts **an oscillating two-directional alternating current (AC) into a single-directional direct current (DC)**.

A rectifier is a device that converts **an oscillating two-directional alternating current (AC) into a single-directional direct current (DC)**.

A rectifier diode is **a two-lead semiconductor that allows current to pass in only one direction**. Generally, P-N junction Diode is formed by joining together n-type and p-type semiconductor materials. (Source: ©YouraPechkin - stock.adobe.com)

Full wave rectifier:

Find out Vrms and ripple factor (r) using formula for full wave rectifier with filter as: **Vrms= Vrp-p/4√3** and ripple factor (r) =1/ (4√3 f RLC), where Vrp-p is peak to peak ripple voltage.

Ripple current peak-to-peak into the −5V output capacitor is approximately equal to twice the negative load current. The wave shape is roughly rectangular, and so is the resultant output ripple voltage. A 100mA negative load and 0.1Ω ESR output capacitor will have **(2)(0.1A)(0.1Ω) = 20mV _{P}_{–}_{P} ripple**.

A capacitor is included in the circuit **to act as a filter to reduce ripple voltage**. Make sure that you connect the capacitor properly across the DC output terminals of the rectifier so that the polarities match. Being an electrolytic capacitor, it is sensitive to damage by polarity reversal.

For full wave rectified AC, average or **DC = 2 * Vpeak / PI**. For our example, we would expect DC to be 2 times the peak voltage, less the 0.6V diode drop all divided by PI. DC = (2 * 29.1 – 0.6) / PI = 18.3VDC.

The transformer utilization factor (TUF) of a rectifier circuit is defined as **the ratio of the DC power available at the load resistor to the AC rating of the secondary coil of a transformer**.

AC power cannot be stored but DC power can be stored. **In order to store electrical energy** alternating current is converted to direct current. Digital devices require direct current to work. Was this answer helpful?

**The ratio of the power output to the total power input**.

Converters and inverters are **electrical devices that convert current**. Converters convert the voltage of an electric device, usually alternating current (AC) to direct current (DC). On the other hand, inverters convert direct current (DC) to alternating current (AC).

Through Ohm's law, you can calculate the voltage (V), current (I) and resistance (R) of a DC circuit. From that you can also calculate the power at any point in the circuit. Follow Ohm's law: **Voltage (V) = Current (I) times Resistance (R)**.

Half Wave Rectifier

The conduction takes place only in one half cycle of supply. Hence the name is HWR. **RL is the load resistance**. The resistance of the diode in the ON state be RF and let the resistance of the secondary winding be RS.

The ripple factor is, = **V RMS V DC 2 − 1** = 229.8 207 2 − 1 = 0.482 = 48.2 % .

If you want to convert AC to DC with a higher magnitude than the source, you can **use a step-up transformer**. Diodes: Allows electricity to flow into one direction when forward biased and blocks the flow in another direction. In this circuit, a bridge rectifier is built using four diodes.

Ripple (specifically ripple voltage) in electronics is **the residual periodic variation of the DC voltage within a power supply which has been derived from an alternating current (AC) source**. This ripple is due to incomplete suppression of the alternating waveform after rectification.

• A rectifier is **an electrical device that converts AC**. **supply into unidirectional DC supply**. • This process of converting alternating current (AC) to. direct current (DC) is also called as rectification. • These bridge rectifiers are available in different.

The DC current is given as: **I _{DC} = V_{DC}/R**. The peak voltage of the output waveform is the same as before for the half-wave rectifier provided each half of the transformer windings have the same rms voltage value. To obtain a different DC voltage output different transformer ratios can be used.

**Physics is for you if you have an enquiring mind, passion for understanding how things work, enjoy playing with ideas, dwelling over abstractions and complex issues**, writes Pratibha Jolly, Principal, Miranda House.

Railway Non Technical Exams Eligibility Criteria

Category | Qualification | Age |
---|---|---|

Traffic Apprentice/Commercial Apprentice | Graduation | 18-30 yrs |

Assistant Station Master/Trainee Guard/Goods Guard | Graduation | 18-30 yrs |

Enquiry-cum-Reservation Clerk | Graduation (preference to those knowing typing with 30 wpm speed) | 18-30 yrs |

**List of All Elements That Are Nonmetals**

- Hydrogen (sometimes)
- Carbon.
- Nitrogen.
- Oxygen.
- Phosphorus.
- Sulfur.
- Selenium.
- Fluorine.

Dated : 01-Jun-2022

Category : Education