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For the early production of motorcycles without fuel indication, an oil level indicator assembled with light-emitting diodes and the like is now available, and the driver can grasp the amount of oil in a timely manner.
This circuit is superior to the general contact type liquid level display circuit and has higher precision. Because the ultrasonic wave is not affected by the concentration and conductivity of the liquid to be tested...
By adjusting RV1 and RV2, it can be determined whether the yellow/green and red/yellow LEDs are dark or bright. Thus it can be seen that the circuit is made...
A light-emitting diode is mounted at each end of the tuning disk. Which LED is turned on, the tuning indicator is removed from it, and when both are turned off, it...
The phase sequence indicating circuit schematic 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...
Electric quantity indicating circuit used on electric vehicles
Lithium core capacity indicating circuit The circuit design of this system adopts a relatively simple and practical method, that is, by testing the time and voltage of lithium core battery discharge...
The passive LED output level indicating circuit passive LED output level indicating circuit is shown in Figure 10-11. It consists of a power output stage...
LED power supply power indicator circuit LED power supply indicator circuit as shown in Figure 10-10, the circuit C1 and C2 start buck and...
Semiconductor Radio Tuning Indication Circuit The semiconductor radio tuning indicator circuit is shown in Figure 10-9. When tuning is accurate, the AGC voltage is the most...
DC low-voltage fuse blowing indication circuit DC low-voltage fuse blowing indication circuit as shown in Figure 10-8, it consists of two LEDs VD2...
Toy model road sign indicating circuit
Photoelectric indicating circuit
LED tuning indication circuit
Power phase sequence indicating circuit