LM317T Voltage Regulator with Pass Transistor

Sprzedam pitersan15@wp.pl TEL. 518570796.



http://www.youtube.com/watch?v=7Qya3qrgYkU&hl=en

New Voltage Regulator Tester for testing COM Type BOSCH/Valeo Voltage Regulators on test benches. Distributed by Wagner Alternators, Chino, California.



http://www.youtube.com/watch?v=SBb0ij8ALDE&hl=en

Homemade: A simple tester for Electronic Air Pressure Valves. Easy to make with a few components like: 1 LM317T (to get +10V) 1 Potmeter 10K (to regulate 0-10V to the input of the airvalve) 5 Resistors 3 Leds All the written on the front is just a remembrance of how to adjust this particular valve, and what the alarm codes are. For people that want to make this: Setup a LM317T circuit with an output of 10V. Connect the wiper of the potmeter with pin 2 (Left of notch) of the valve. The remaining 2 contact of the potmeter; 1 to mass and 1 to 10V (output 317T) Other pins of valve socket: Pin 1 +24Vdc-----( Right of notch) Pin 3 Mass--------(Left under notch) Pin 4 Analog output (Right under notch) connect a led with resistor Pin 5 Digital output (Center) connect a led with resistor



http://www.youtube.com/watch?v=pQycLr7hqSw&hl=en

Sprzedam pitersan15@wp.pl TEL. 518570796



http://www.youtube.com/watch?v=7Qya3qrgYkU&hl=en

Schematic used: www.uoguelph.ca Servo used: Yeah Racing SV-0006 Micro Servo Notes: - 850k substituted for R2, that's all I could find - 0.0271uF substituted for C1 (was unstable at 0.027uF; 273+101, again, all I could find), works fine but as you may be able to see/hear, center is offset to the right (100% right in servo is 80% or so right in circuit) - Diode is to prevent reverse polarity, and also used to clip negative to (crude on/off switch) - 7806 voltage regulator underneath servo plug - We got a coqui frog in our backyard ):



http://www.youtube.com/watch?v=e4Nq25KAD48&hl=en