Types of power supply and their applications

Types of index number show and their applicationsTypes of Power come forth and their applicationsPower render is a thingumabob apply to hand over the electric car energy to operate the devices running on electric authority. It has many peculiar(a) ways to digest electric energy to a specific frame it is m another(prenominal) of the system ( Brown, 2001, p.1 ). The basic processality of major index number put out is to convert preference Current potential difference to set send out Current electric potential unavoidable by electronic devices. A typical cause supply has quad different modules each of them has a specific sound. (Source http//www.kpsec.freeuk.com/world causalitysup.htm) Transformer is the first module and its function is to convert high potential Alternative Current to suffering potential educate Current. The second module is Rectifier and its main function is to convert outset voltage Alternative Current to Direct Current. The third module i s Smoothing, the Direct Current produced by the Rectifier is varying, so Smoothing reduces this variation to small rippling. Last module is Regulator, it sets the Direct Current voltage to fixed value by removing the ripples. This is a basic design of role supply. The design can be blown-up and complicated base on the conductments. This essay will present the cardinal major types of index finger supply which are Linear Regulators and break method Power Supply, Programmable Power Supply, Uninterruptible Power Supply.The first type of power supply is Linear adjust Power Supplies. They are the basic type of power supply. they produce the regulated create voltage by dropping the commentary voltage. To achieve this, it relies on variable conductivity of an electronic device. Hence, the lot of power wasted in the form of heat. it is though, a very electrically serenity power supply (Brown, 2001, p.11). they are often used in realm based equipment and distributed power sys tems.Linear regulated power supply function by converting varying Alternative Current input to regulated Direct Current return. The typical lap covering used in this type has both range. One al starts more voltage at lower current and the other allows more current at lower voltage. Linear regulated power supplies come in two basic forms called series regulators and shunt regulators. serial publication regulated power supplies are most common form of elongate regulated power supply. The power dissipated in series regulated device is the product of power supply output current and the voltage drop. Shunt regulated power supplies are the simpler form of Linear Regulated power supply, but they are less economic. Simplicity is the main value of linear regulated power supplies. They have been widely used in industry for a long period. They are used in systems that require extremely low folie. They are more suitable and court effectual for low power applications. They are used in ground based applications and distributed power systems. Since the linear regulated power supply has very low power output voltage ripple, it is used in low noise / low ripple applications much(prenominal)(prenominal) as communication and radio device where noise is very critical. It is more efficient in the application which output voltage is almost equal to input voltage. The second type of power supply is slip Mode (SMPS). It operates in ON-OFF mode. It uses switching circuits and energy storage elements such as capacitors and inductors to get the regulated output voltage. These circuits are ideally lossless with 100% energy transfer (Johnny, 2006, p.1).The main advantage of Switching Mode Power Supply is the higher efficiency because of low power dissipation. It is simpler and light weight because of the elimination of heavy low frequency transformers and generates low heat. It is used in domestic products which often have universal inputs. restless phones have changed their power supply technology from linear regulated to Switching Mode Technology. It is widely used in aircraft electric power such as airplane ground support.The third type of power supply is Programmable Power Supply. It provides the power through a computer interface. It generally depends on both Linear regulated and Switched Mode technologies to produce high-fidelity output power. A Programmable power supply typically consists of microcontroller, current, voltage programming circuits such as analog to digital convertors, serial peripheral interface, keypad and a LCD display.The desired voltage parameter is given as the input to microcontroller through key pad. Intern, microcontroller convert analog voltage from a voltage source to digital through analog to digital convertor. This digital voltage is regulated through serial peripheral interface to get the desired voltage which is inputted to microcontroller through keypad.The main advantage of programmable power supply is that accur ate required voltage can be produced which is not possible from any linear regulated or switching mode power supply. It is primarily used in automated equipment testing. They are also used in ultrasonic vibration measurement tools.The last type of power supply is Uninterruptible power supply. It is widely known as UPS or power defend up. It is widely used as backup power to protect the devices from crashing cod to sudden power loss.There are three major categories of Uninterruptible power supply, offline -standby, online and line-interactive. The first category is Offline /standby Uninterruptible power supply. It provides balloon defense and bombardment back-up up to 20 minutes. When the input power supply falls at a lower place the threshold level, then Uninterruptible power supply turns on its power circuit providing power backup to the device up in certain eon (In this type 20 minutes).Line-Interactive Uninterruptible power supply is the second category. It generally uses alone one main power convertor to generate the power. With its low cost and durability, the line-interactive UPS has been used successfully in millions of IT installations worldwide (Hoff and Samstad , 2004) . The typical protection time varies from 5 minutes to 30 minutes.The last category is Online, the operation of Online Uninterruptible power supply is very similar to Standby or Line-Interactive type. The typical protection time varies surrounded by 5 minutes to 30 minutes. But, it provides electrical firewall between incoming utility program power and sensitive electronic equipment. The main take of Uninterruptible power supply is to provide the protection to devices from crashing due to sudden power loss. Some of the Uninterruptible power supplies are also capable of correcting the common utility power problems such as, total loss of input voltage, momentary adjoin or decrease input voltage, spikes , noise. They are mainly used for surge protection and back power for com puters, data centers and telecommunication equipment. They are used to provide the electric isolation for the equipment which are sensitive to power fluctuations.In conclusion, there are various sources of power being used to provide the power to the systems effectively and efficiently. For example, solar energy and wind power are being converted to electric energy to provide the power to large industrial applications. Power supplies are the heart of any system which requires electrical energy. They not only provide power but also provide the protection to the system against outside disturbances. Therefore, design and development considerations of a power supply are more important. As technology is growing, more ripe power supplies are being invented to provide best protection and efficient power to the devices.