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2003 Course Electronic Product Design

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Total No. of Questions : 12] P947 [Total No. of Pages : 4 [3664]-212 B.E. (Electronics) ELECTRONIC PRODUCT DESIGN (2003 Course) Time : 3 Hours] [Max. Marks : 100 Instructions to the candidates: 1) Answers to the two sections should be written in separate books. 2) Neat diagrams must be drawn wherever necessary. 3) Figures to the right indicate full marks. 4) Use of electronic pocket calculator is allowed. 5) Assume suitable data, if necessary. SECTION - I Q1) a) b) What are different components of product s selling price? Draw schematic block diagram of a Laboratory Function Generator. Assume reasonable raw material and derive selling price using above components. [10] Draw a sketch of front panel of a Laboratory Function Generator and explain how ergonomic and aesthetic design considerations are taken care of in the same. [8] OR Q2) a) b) Explain the mechanism of generation of : [6] i) Conducted EMI. ii) Radiated EMI. For following situations, suggest suitable suppression device / component / mechanism and also explain how it is effective in suppressing the EMI : i) The power transformer in a PID controller fails due to 1800V transient measured on AC mains when a nearby DC Motor is switched OFF. ii) When there is a call on mobile phone of a person operating PC, the monitor screen looses synchronization. iii) In a multi-PCB industrial DC drive housed in 19" rack, the CPU is reset whenever driver circuit in one of the cards switches on four or more Electromagnetic relays. [12] P.T.O.

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