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Embedded Engineer Interview Question 3 Hardware
2022-07-01 08:42:00 【Craftsman in Jianghu】
Digital analog electricity
One 、 Translation of professional terms
MCU____________
DSP____________
EPROM__________
PWM____________
Two 、 Fill in the blanks
1、 NAND gate expression _______
2、 Triode working state _______、、.
3、 The regulator uses a diode ______ characteristic .
3、 ... and 、 Draw a circuit diagram
1、 Oscillating circuit .
2、 Capacitance three-point oscillation circuit .
3、 Rectifier circuit , Principle of analysis .
4、 Battery low voltage protection circuit . The battery 3V When it is lower than 2V Time protection ,LED Call the police .
5、 Operational amplifier circuit
6、 And 、 or 、 Non gate digital logic diagram and discrete device diagram
7、138 Logic diagram of decoder digitator
Four 、 Analysis or calculation circuit
1、 The figure below CE What's the voltage ? What state does the triode work in .
2、 The figure below A Voltage voltage ?
PCB
1、 draw PCB What should I pay attention to ?
2、 draw PCB What tools are used for the board ?
3、 What is encapsulation ?
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