Answer / mister smarty pants

Positive feedback is typically part of an an amplifier
circuit where some (or all) of the output of the amplifier
is returned to the input in-phase with the incoming signal.
If enough signal is fed back, it typically causes
oscillation. Positive feedback can occur by virtue of the
inter-component capacitance as a result of poor circuit
design.

Negative feeback is similar except the signal fed back is
in the opposite phase of the original signal coming into
the amplifier. If the amount of negative feedback is
correct, it will typically cancell out any positive
feedback and stabilize an amplifier by preventing
oscillation. This is sometimes also called "neutralizing"
an amplifier.

Answer / mohamed rafik

Negative feedback is used to describe the act of reversing any discrepancy between desired and actual output. Positive feedback responds to a variance between desired and actual output by increasing that variance

what does it mean an active front end in vfd plz explain it briefly

0 Answers  

---

What Is Pre- Commissioning Package +what is DCS & ESD Pre- Commissioning for Instruments Please explain your answer on practical ground base

0 Answers  

---

why direct mounted pressure transmitters is always installed with DBB ( double bleed block) valve in process line or top of the tanks ?

0 Answers  

---

how to calculate flow range in DP tx

1 Answers   Karnataka Power,

---

Why 1-5 vdc a standard?

1 Answers   Process Control Technologies,

---

---

Why we are using sqare root in flow?

4 Answers  

---

How to define the size of control valve?

5 Answers  

---

How to force the bit in GE Mark V?

1 Answers  

---

How flow control valve is working with pnuematic positioner and I/P convreter from command is given from remote

1 Answers   Ecil, GAIL,

---

I installed the smartplant instrument v8, but can not be opened, that always said: "INTools 2007 hardlock no found". So Could you help me how to do for that?

0 Answers   SRAAC,

---

where can we use viberation transmitter,and how can we control viberation?

1 Answers   Maden,

---

What is electronics?

6 Answers   ITC Infotech,

---