Answer / arun cs

U can drive a DC Motor with the help of a micor controller
(eg:PIC16f877).With the help of
PWM(Pulse Width Modulated Signal)from an Micro
controller.The PWM signal will fed to a H-Bridge(Consist of
4 Darling Pair transistor pairs) which will drive the DC
motor.The frequency of PWM is directly proprtional to speed

Answer / c.kumaresan

The programmable peripheral interfacing(PPI)devices are
used to interact the "Motor Assembly Unit" 8085
Microprocessor.

What are laser diodes?

0 Answers  

---

8 12 14 6 11 __ 14 6 18 12, find the missing numbers?

10 Answers   Donshah E Solutions, HCL,

---

What is the difference between MOD Bus and Profi Bus?

1 Answers  

---

What is meant by operating point?

0 Answers  

---

1.Why we have to use inductor in circuits, what is their behavior? 2. Why we have to use capacitor in circuits, what is their behavior?

1 Answers   Instronix,

---

---

rrb

1 Answers   RRB,

---

how call flow happening

8 Answers   Aricent, Black and Veatch, Ericsson, GTL, Idea, Kekran Mekran,

---

what sort of commn is best for commn in space and why

0 Answers   Cisco,

---

how to calculate qty. of random rubble masonary in retaining wall?

0 Answers  

---

Define the meaning of tristate signal in electronics?

0 Answers  

---

. A superconductor is a a.) A material showing perfect conductivity and Meissner effect below a critical temperature b.) A conductor having zero resistance c.) A perfect conductor with highest di-magnetic susceptibility d.) A perfect conductor which becomes resistance when the current density through it exceeds a critical value

1 Answers   BSNL,

---

State the difference between ac and dc voltage.

0 Answers  

---