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In view of the early production of motorcycles without fuel indicator, a fuel level indicator assembled with light-emitting diodes is now introduced, so that the rider can grasp the fuel level in time.
This circuit is superior to the general contact liquid level display circuit, and the accuracy will be higher. Because ultrasound is not affected by the concentration and conductivity of the measured liquid...
By adjusting RV1 and RV2, you can determine whether the yellow/green and red/yellow LEDs are dark or bright. So it can be seen that the circuit works...
Each end of the tuning disk is equipped with a light-emitting diode. Which light-emitting diode is turned on, the tuning indication will be moved away from it, and when both are turned off, it will...
Schematic diagram of phase sequence indicating circuit The phase sequence is an extremely important parameter of the three-phase AC power supply. The phase sequence of the three-phase AC power connected to the three-phase induction motor...
Electricity indicator circuit used on electric vehicles
Lithium cell capacity indicator circuit The circuit design of this system adopts a relatively simple and practical method, that is, by testing the time and voltage characteristics of lithium cell battery discharge...
Passive LED output level indication circuit Passive LED output level indication circuit is shown in Figure 10-11. It consists of the power output stage...
Light-emitting diode mains power indication circuit The light-emitting diode mains indication circuit is shown in Figure 10-10. C1 and C2 in the circuit start to step down and...
Semiconductor radio tuning indicating circuit The semiconductor radio tuning indicating circuit is shown in Figure 10-9. When the tuning is accurate, the AGC voltage is the most...
DC low-voltage fuse blown indication circuit The DC low-voltage fuse blown indication circuit is shown in Figure 10-8, which consists of two light-emitting diodes VD2...
Toy model road sign indicating circuit
Photoelectric indicating circuit
LED tuning indicator circuit
Power phase sequence indicating circuit