000 02283nam a2200253 a 4500
001 vtls000037783
003 KUKTEM
005 20251114204356.0
008 090615t2008 my a f m 000 0 eng|d
020 _aTHE0007024(Local)
039 9 _a201906131448
_baida
_c201107132229
_dVLOAD
_c200908141629
_dVLOAD
_c200908141603
_dVLOAD
_y200906151049
_zida84
040 _aUMP
090 _aTK7881.15 .H45 2008 rs Bc.
100 0 _aMohd Helmi Samta
245 1 0 _aControl rectifier for variable speed single phase DC motor /
_cMohd Helmi Bin Samta
246 3 _aControl rectifier for variable speed single phase DC motor
_h[electronic resource]
260 _aKuantan, Pahang :
_bUMP,
_c2008
300 _a98 p. :
_bill. (some col.) ;
_c30 cm. +
_e1 computer disc
502 _aProject paper (Bachelor of Electrical Engineering (Power systems)) -- Universiti Malaysia Pahang - 2008
520 3 _aAn electric power can be converted from one form to another form by using power electronics devices. The function of power electronics circuits by using semiconductor devices as switch is modifying or controlling a voltage. The goal of power electronics circuits are to convert electrical energy from one form to another, from source to load with highest efficiency, high availability and high reliability with the lowest cost, smallest size and weight. The term rectification refers to the power circuit whose function is to alter the ac characteristic of the line electric power to produce a “rectified”ac power at the load side that contain the dc value. In this project task, the rectifier circuit should be possible to produce a variable average voltage by controlling the delay. The single phase 240 Vrms AC source is stepped down to 12 Vrms by using step-down power transformer. A versatile method of controlling the output of a full-wave rectifier is to substitute controlled switches such as SCRs for the diodes. The output is controlled by adjusting the delay angle of each SCR, resulting in an output voltage or output current which is variable over a limited range with programmed the microcontroller ( PIC16F84A ).
650 0 _aPower electronics
650 0 _aDigital electronics
999 _aVIRTUA40
_c940
_d946
999 _aVTLSSORT0080*0200*0400*0900*1000*2450*2460*2600*3000*5020*5200*6500*6501*9992