Wednesday 15 July 2015

Hardware Board Design Interview Questions - Part 2


31. What is EMI and EMC? 

32. What is conducted and radiated noise?

33.  What is differential mode interference? 

34. What is common mode interference?

35. What are noise sources for the EMI? 

36. What are noise suppression techniques? 

37. What is critical length in the PCB design? When the conductor to be considered as the  
       transmission line? 

38. What is Controlled impedance? It depends on what are the parameters on the board?

39. What are the different types of the dielectric material aware of? 

40.  What is the micro strip and strip line transmission line? How the impedance and 
        propagation delay will affect?

41.  What is an equivalent circuit of the transmission line?

42. What are the reasons for the signal reflections? What is reflection coefficient? 

43. What are the termination techniques widely used in Board design? 

44. What are the advantages and disadvantages parallel termination?

45. What is thevenin termination? Discuss advantages and disadvantages ? 

46. What is Series termination? Explain advantages and disadvantages? 

47. What is AC termination? Discuss advantages and disadvantages? 

48. What is decoupling? 

49. How to select the decoupling capacitor? 

50. How the ESR and ESL will affect the bypass capability? 

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