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AC line powered LED Lamp
Can anyone explain to me how a 230 V Ac line powered LED lamp works ?..one dat i saw recently contains 20 LEDs connected in series..There was also a high voltage capacitor..I m nt sure bt it containd a bridge rectifier also..?
Analog Clock
I recently opened an old alarm clock circuit nd it contained a component on the pcb..Near to it was written SR810..If ne1 has any idea abt wat it could be..pls tell me
Thanx in advance.
Regarding Capacitors :
What is Stray Capacitance ?
Actually the entire sentence goes like dis & i cant understand it :
In an inverted R/2R ladder DAC node voltages remain constant with changing inp
ut binary words..This prevents any slowdown effects by STRAY CAPACITANCES
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