Hi.
I installed an external inductive sensor atacched to the crankshaft of a car with a tooth wheel with a two teeth gap to detect top dead center.
I converted the sine output from sensor to square wave with the atacched squematic using a LM 393. I am monitoring it with an arduino mega 2560...
Hi.
I need to build an injector driver circuit for two bosch injectors: 0 280 155 965 and 0 280 1150 749.
Both are high impedance injectors (15 ohm). My choice is using an LM 1949 as injector driver.
My question is: can i use peak and hold mode with this injectors or do i need to drive them...
Hello.
I have an usb interace from a car diagnostic tool that i damaged. I am trying to fix this since the new one is very expensive.
Dont have welding skills on PCB so contacted a skiled friend to do this job.
Let it fall down and some SMD components got loose from their welding but i could...
Hello.
I want to know more about dynamometers, namely Eddy current dynamometers.
My issue is Power Losses Measurement, i know that after reach max desired rpm one should press the clutch till the car stops and the computer in the dyno take the power loss values.
But when you press the clutch...
Hi.
Wanted to build a circuit with a NE555 that provides modulated PWM.
After some research I found that in astable mode with a diode in paralel with the discharge resistance of the capacitor i can do this.
I made the circuit and i can modulate PWM (16-88% Duty cycle). My problem is the...
Hello.
I am trying to put a small dc motor working and regulate speed with PWM generated by arduino. The transistor i am using is a bc547c.
The problem is that the motor make a strange noise but doesn t spin (no its not damaged). Connected an amp to see the colector current and it increases as...
