Last night, I introduced the situation of the game in the court and told the topic. I suddenly found very funny. The top three topics of the game are related to the company of sponsor ... all are solar cells ...... Do you say that the better design will be adopted by people?
The following is the topic: but there is an entry with officially released
1. Design a DC / DC boost conversion circuit that requires the input DC voltage to 12V. It works normally within 10V to 24V. The output is 24V stable. The load current is 0 to 1 amps change, the voltage remains unchanged, and when the current is greater than 1.2 ampere, the circuit is automatically protected.
Evaluation Content: Whether the circuit's scheme, data, and structure is reasonable. Technical parameters such as stability coefficient, input range, conversion efficiency, limit protection.
2, design a daylight automatic tracking control system
Model, actual size is not limited, requires in one-dimensional
The axial direction can be rotated from a positive and negative 60 degrees. Be no
Automatically returned zero when sunlight.
The right picture is for reference only.
Evaluation Content: The system's solution, idea, and structure are reasonable. Tracking range, tracking sensitivity, tracking accuracy and other technical parameters.
3. Use the laser beam of the laser diode as an information carrier to achieve wireless signal communication. Analog transport speech signals, the transmitting end is spoken by the MIC, and the receiving end can be released directly from the speaker. Code data transmission, the sender is placed in a string of data by pressing the button, and the receiving end can be displayed in real time.
Evaluation Content: The circuit of the circuit, whether the structure is reasonable, voice clarity, digital transmission rate, communication distance and other technical parameters.
4. Homemade high-frequency signal measuring circuit, requires the measurement results. Basic measurement range: the amplitude value of 100 mvulher to 10 volts, frequencies 50 Hz to 3 MHz. Extended measurement range, amplitude of 10 millivolts, and frequency of 10 MHz.
Evaluation content: The circuit of the circuit is reasonable. Technical parameters such as measurement range, measurement accuracy.
Note: The overall hardware circuit must be designed and produced, and the finished product cannot be used.
5. Homemade a simple Q table, used to measure the quality factor Q value of the display inductance or capacitor circuit. The operating frequency is around 100kHz.
Well, we have to cheer ~~~
It's too tired recently, it's more ruined, in order to reward yourself, I am going to buy Nike's little helmet, white and green color ~~ haha
