What is the internal structure of op-amp and explain each block in brief?

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which opamp don’t have feedback loop?

0 Answers  

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We are facing the problem of communication failure between seimens drives and ABB DCS. Between drives and DCS on RLM -01 module for communication purpose. We found red blinking i.e error blinking in RLM -o1 module. So we replaced with new one but after one month same problem again came. So again we installed old RLM-01 module. Now also RED blinking is coming but sometimes drives are not tripping. What will be the cause for this problem?

0 Answers   DSPM,

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An FM receiver has an IF frequency that is A 88MHz-108MHz range B 540kHz-1640kHz range C 455kHz D 10.7MHz

2 Answers  

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why we used -48 dc volt for telecom equipments ?

2 Answers  

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Explain the working of stepping motors.

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what is antenna?

21 Answers   Idea,

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in optical fiber cabels, which type of losses can be occured, and how the signal-loss happens?

2 Answers  

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How can you convert an JK Flip-flop to a D Flip-flop?

13 Answers   Bhel, Chenega, Electronics, NTRO, RVS, TCS,

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Which slot is reserved for GPRS?

1 Answers   NSN,

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why is BPSK better than BFSK in presence of noise

5 Answers  

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Describe the principle of step-up chopper. Derive an expression for the average output voltage in terms of input dc voltage & duty cycle?

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