In the figure, UTC34063 is an eight-pin dual in-line IC, which is a single-chip boost and step-down DC conversion control IC. The IC has internal components such as a temperature compensator, a comparator, and a large current output switch. The oscillation frequency is 100 kHz. The measured data is shown in the table below.
Foot number.....in the road resistance value...voltage (V)
......Red measurement (KΩ) Black measurement (KΩ)
1 ......4.1 ......8.2 .......12
2 ......0.8...... 7.8...... 8.28
3 ......5.8 ......22 .......0.65
4 .......0 ........0......... 0
5 .......1........ 1 .......1.26
6 ......4.2 ......8.2 .......12
7 ......4.2 ......8.2 .......12
8 .......5........ 10 ......10.6
Note: (1) The road resistance is measured with a 500-type multimeter;
(2) The voltage value is input DC 12V, and the no-load state is measured with DT890C+ digital meter.
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