Welcome to our site! EDAboard.com is an international Electronics Discussion Forum focused on EDA software, circuits, schematics, books, theory, papers, asic, pld, 8051, DSP, Network, RF, Analog Design, PCB, Service Manuals... and a whole lot more! To participate you need to register. Registration is free. Click here to register now.
thank you so much for the reply sir. i need the fast pwm signal to trigger an ultrasonic transducer for my thesis. the trigger voltage must be a pwm (positive and negative) with around +20 and -20v voltage, not to mention that the current needs is around 1 - 1,5amps.
hello all.
im planning to convert 1mhz pwm from a microcontroller (5v and gnd) to a positive and negative (+20v and -20v) pwm (1mhz). I already did this by using a bjt transistor (bd139 and bd140), please see the pict below.
the circuit above works to convert the (+5v/gnd) pwm to (+20v/-20v)...
This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register.
By continuing to use this site, you are consenting to our use of cookies.
