[德尔福机械类笔试题]1,Briefly describe what is blanking(cutting),forming,coining and embossing in stamping process. 2,What is metal clading? 3,What is the purpose of adding glass f...+阅读
德尔福集团是全球最大的汽车系统和零部件生产制造商, 为客户提供品种齐全的汽车系统, 零部件和模块。今天成电的就业办老师介绍说，德尔福是汽车界的华为，从来不在媒体上打广告。大家看看从美国空运过来的笔试题目。
1、Name 3 Vehicle Buses.
2、Name 2 possible sources of Electromagic interference on Electronics Circuit ASM.
3、Welength for 12MHz frequency signal is____
4、Name 2 important considerations for car radio performance related to audio signal processing under multipath condition?
5、What is the typical FM receiver RF signal strength to achieve 30dB S/N for car radio?
6、When a radio is tuned to 98.1 MHz with a LO of 108.8 MHz, what is the image frequency?
7、For a system with a matched impedance, what is the Reflection Coefficient and SWR?
8、Which property of the output capacitor is the primary cause of Low Drop Out (LDO) regulator loop instability?
a) Equivalent series resistance(ESR)
b) Effective series inductance(ESL)
c) Capacitance value
d) Dielectric material
9、The switching regulator is capable of:
a) Higher power conversion efficiency
b) Providing an output voltage that is higher than the input
c) Generating an output boltage oppsite in polarity to the input
d) All of the above
10、A linear regulator op*(没抄清楚)
Vin(max)=10v,Vout(min)=4.8v,Iout(max)=2.5mA,Iq(max)=2.5mA,Ta(max)=8.5摄氏度，The regulator is ailable in 3 packages.Each package has the following thermal characteristics:
Package Rja(摄食度/W) Rjc(摄食度/W)
TO220 50 35
SO14 125 30
D1P8 100 52
Choose the most suitable package to handle the power dissipation requirement without a heat sink and why.
延伸阅读：
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德尔福机械类笔试题目德尔福机械类笔试，一般都会考什么类型的题目呢？本站为大家揭晓： 1,briefly describe what is blanking(cutting),forming,coining and embossing in stamping process. 2,what...
德尔福英文笔试题目1,Briefly describe what is blanking(cutting),forming,coining and embossing in stamping process. 2,What is metal clading? 3,What is the purpose of adding glass f...
