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Contol System

30 January 2018

  • . Transformer

  •  

  •  . Primary winding vs Secondary winding 

  • . Only Ac supply

  • . Primary , Secondary power freq will be constant and variation b/w volatage/Current base on turns of winding in 

  • primary and secondary.

  • . Stepup transform, & stepdown transaformar.

  • Steup tranasform

  • . No of turns in sec winding > primary winding

  • . if ip 5 volatge primary 

  • . EMf = N (no of turns in primary) X d phi/dt(rate of change magnetic force) 

  • Electromotive force.

  • . By EMf we can calculate v in sec coil.

  • Stepdown Transformer

  • . No of turns in primary winding > sec winding.

  •  

  • Use

  • . giving current to home.

  • . when we need low / high voltage.

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  • . Ip

  •  

  • . Every network device have IP

  • . IPv4 & ipv6

  • . IPv4 0-255 divide with 4 parts. 

  • . NAT Network addressing transalation.

  • . System Ip  >>  Port : ISP  : ISP IP >> Destination.

  • . Destination >> ISP IP : ISP : Port >> System ip.

  • . Range of  ipv4 is 4 billion but to distribute more than 4 B we use this technique.

  • . By this first two parts reserved for router.

  • . Ipv6 0-16Fs divide with 8 parts.

  • . No Nat is needed all will have unique values.

  • . Ipv6 dose not have use fully because of old devices not support ipv6.

  • . Ipv6 has more speed than ipv4 because net packets size is increased.

  • . 

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  • . PBX

  •  

  • . Private Branch Exchange,

  • . All telephone connected to together.

  • . Can call internally with out no charge.

  • . If telephone 1 is busy goes to telephone 2.

  • . PBX Analog, Digital, IP phone lines can connect.

  • . Call go through net we can call internation

  • . Auto Answering.

  • . We can divide lines form one phone number.

  • . Extention of phones can use to talk internally.

  • . Ivrs auto voice response is one of the feature of PBX.

  • . Caller Tune can Setup.

  • . 

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  • . Word

  • To check 

  • . Mailing to multiple persons at a time.

  • ----------------------------------------- 

  • . Paragraph alignment.

  • . Left , right , center, Justify.

  • . Line spacing : space b/w lines.

  • . Pragraph spacing : space b/w Pargraphs.

  • . Indent : right, Left.

  • gap b/w paragraph and margin.

  • First line indent : for first line of paragraph.

  • . Page margine: Marign of the page can adjust top, bottom, right, Left. Auto and custom.

  • . TypeFaces: Selected contant can change font styles.

  • Bold, Italic, regular, ItalicBold.

  • ctrl+b, ctrl+i,

  • Font-family, Format - paint.

  • Underline ctrl+u, Color, back-ground, strike.

  • Short-cut

  • . alt give short cuts with number of ribbons.

  • . ctrl+v paste, ctrl+s save, ctrl+z undo,ctrl+y redo.

  • . ctrl+p print, ctrl+o open file.

  • . Select text + tab gives indent to right.

  • . ctrl +] increase font size, ctrl +[ decrease font size.


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  • . 24 frames

  • . Video contains no of frames 24 (images).

  • . Less than 24 frames video will not be smooth.

  • . Film 24 standard.

  • . More than 24 frames more smoothness of video.

  • . More frames have high detailing.

  • . Each Frame is (1080 resolution)HD then video will be HD.

  • . By Frame can make animation, stop motion.

  • . Unit Frames/Sec.

  • . Interlaced, Prograssive.

  • Interlaced one frame divides to more no of lines than print line by line on screen.

  • Prograssive one full frame will print at a time. quality is more than interlaced.

  • . Standard will change by country like Us - 30fps tv, Euro 24-25 fps.

  • . when recording camera captures 24 pics per sec.

  • . Slow Motion : 3000fps record. video is 10 sec divides to 3000/10.

  • . Time Lapse : records less frames per sec then shows more frames per sec in video than recorded.


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  • Pending Topics

  • . Morse Code

  • . Wave Theory

  • . AC vs DC

  • . PCBs

  • . Analog phone vs Digital Phone

  • . Requirment of Binery Sys.

  • . Installing printer

  • . Crimping cat 5 cable.

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