Author circuit used for telescope control CNC, robotics and so on. via LPT port can be used in similar projects using circuit has 3 channels Somebody SN74LS08 in other parts used in the SAA1042 stepper motor driver outputs are powered with TIP120 transistors. Data inputs are isolated by Kublin 4N26 opto .. A chart of the engine control board, there pcb drawings ..
Source: jlc31.free.fr/Telescope/Motorisation.html alternative link:
FILE DOWNLOAD LINK LIST (in TXT format): LINKS-18928.zip
Published: 2012/05/20 Tags: motor control circuit, motor driver circuit
Led VU Meter Circuit LM3915
LM3915, LM3914 VU Meter circuit with’ve shared the printed circuit, but this circuit diagram is also drawn to separate mono and stereo vu meter circuit connection preanfil amps, amp direct connection drawn understood about the scheme. VU Meter LM3915 driver integrated circuit used in 10 out there, according to the audio input volume with the 100k potentiometer can adjust the light intensity of LEDs ..