Electrical Power Supply & Lithium-ion Battery

Contents Pages

1.0 Introduction 3

2.0PC Powers Supply
2.1 dogma Operation 4
2.1.1 AC Input5
2.1.2 characteristic Power Distribution5
2.2Switcher technology7
2.3 ATX Standardisation 8

3.0Portable Music Player Power Supply
3.1 Lithium-ion stamp battery9
3.2 The Chemistry11
3.3Holy Exploding Laptop Batman!13

4.0 Conclusion 15

5.0 Bibliography 16

1.0 Introduction

The separate component to any electrical apparatus is its power summate.

The sideline cut through exit discuss how a personal computing device (PC) power offer works and how a portable mp3 medication player (i.e. an iPod) power supply works.

The first section of this report will detail how the power supplied to your PC is converted from an alternate(a) current (AC) to a direct current (DC), which is required by the individual components in the computer.

The second part of this report will discuss how an iPod battery works.

2.0 PC Power Supply

2.1 Principle Operation

The power supply in a PC is typically located at the back and is visible by a power cable 3-pin connector and a engine cooling system fan.

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Connecting your PC to the mains supply in your house will deliver an AC current to the power supply unit.



Within the power supply unit the AC input will be converted to lower DC voltages by way of Switcher Technology.

Typical voltages used within a PC are 3.3, 5 volts and 12 volts.

Generally, the digital circuits require 3.3 and 5 volts.

The components within a PC needing more power are the disk drives and cooling fans, which require 12 volts.

In addition, PC power supplies in any case have a circuit called VSB (standby voltage). This circuit allows the computers ON button, when pressed, to hop out a signal to the power supply to turn the machine on, even when it appears to be off.

2.1.1 AC Input
Table 1 lists AC input voltage and frequency requirements for continuous operation. The power supply is capable of...If you want to get a full essay, prescribe it on our website: Orderessay



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