Many analog systems need a stable power supply voltage that does not vary with temperature and time in order to operate properly. In a battery operated system the battery voltage is not stable, e.g. it decreases with decreasing temperature and with ageing. In that case a voltage regulator must be used, that regulates the battery voltage and generates a stable supply voltage to power other circuitry. In this thesis a voltage regulator to be used in a battery operated system has been designed which meets the given specification of stability and power capabilities. A voltage reference, which is a commonly used devise in analog circuits, was also designed. The role of a reference voltage in an electrical system is the same as for a tuning fork in a musical ensemble; to set a standard to which other voltages are compared. A functionality to detect when the lifetime of the battery is about to run out was also developed.
Identifer | oai:union.ndltd.org:UPSALLA1/oai:DiVA.org:liu-1711 |
Date | January 2003 |
Creators | Komark, Stina |
Publisher | Linköpings universitet, Institutionen för systemteknik, Institutionen för systemteknik |
Source Sets | DiVA Archive at Upsalla University |
Language | English |
Detected Language | English |
Type | Student thesis, info:eu-repo/semantics/bachelorThesis, text |
Format | application/pdf |
Rights | info:eu-repo/semantics/openAccess |
Relation | LiTH-ISY-Ex, ; 3513 |
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