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The car brake lamp fault monitor (4)

2016-08-08 15:16  
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The car brake lamp fault monitor (4)
Here is to introduce a car brake lamp fault monitor circuit which is made of the CD4011 digital integrated circuit(4 NAND). The working principle of the circuitFigure 7-56 is the The car brake lamp fault monitor circuit In the circuit, HL1 is the left brake lamp, HL2 is the right brake lamp, resistors R2 and R3 form 2 circuits with brake lamps HL1 and HL2. S is the brake switch, GB is the car battery.