Question 7 a) Explain the purpose of the C7 capacitor in the circuit below +5V V

Question

Question 7 a) Explain the purpose of the C7 capacitor in the circuit below +5V VCC PA2 (PCINTI0/RESET/dw) PAI (PCINT9XTAL2) PAO (PCINT&CLKUXTALI;) PDO ( PCI NTI 1RXD) PDI (PCINTI2/TXD)- PD2 (PCINTI3/CKOUT XCK/INTO) PD3 (PCINTI 4INT? ) PD4 (PCINT? STO) PDS (PCINTI6 OCOB/TI) PD6 (ICP/PCINTI7) .1u PBO (AINO/PCINTO) PBI (AINI/PCINTI PB2 (OCOA/PCINT2) PB4 (OCIB/PCINT4) PB5 (MOSUDUSDA/PCINTS) DO PCINT6) g GND PB7 (USCK/SCLUSCK/PCINT7) ATtiny2313A-SU GND Explain: b) Explain the purpose of C2 and C3 capacitors in the circuit below +12V Ul MC78LOSACPRPG IN+5V GND +5V C4 0.luF 100uF 100uF 0.luF GNDGND GND GNDGND Explain:

Explanation / Answer

Ans. 7 (a) Capacitor C7 between Vdd and Ground is used just because of cancelling noise harmonics cancellations which are generated in power supply along with DC supply due to circuit non ideal conditions.

Ans. 7 (b) Capacitor C2 and C3 is connected in parallel to input AC 12 V supply which is used to block DC components to pass purely AC voltage through regulator IC.

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