Isolated dual power supply from 5V
This is a unregulated supply for low power circuits. You may be able to regulate the outputs with zeners or small regulators like 78L05. The transformer can be hand wound in a mini ferrite...
RS232 with Opto-Isolation
I had to once interface an high voltage circuit to PC, The uC had to communicate thru RS232–Comm port–Serial Port. Part of the 80C31 8051 SBC Even though i had isolation at the sensors...
Three Opamp Differential Instrumentation
This is the best Instrumentation OpAmp, Great CMRR, ensure supply has no ripple and keep analog and digital grounds separate. Ri can be replaced with a trimpot and resistor to alter gain. Connect a...
Ultra Sound Sender Detecter Diagram
I am a University Physics technical staff member and I am searching a Diagram and full detals about Ultra sound detecter (Sender & receiver & Detecter). It must be arround (Detecting range ) 1.2...
Logic Analyzer on Computer
Title: Test circuit for Logic Analyzer – Message: I am a retired hobbyist. Source files needed.The following was submitted on March 8th, 2008 at 06:47AM (CST). Subject: delabs Schematic Source Request. Circuit: del20006.pdf ....
Understanding Transistor Power Dissipation
I like your page about current source circuit basic design. However, I still have Little confuse of the power dissipation calculation. The max power dissipation of my circuit is 20.5V x 0.5A = 10.25W,...
Hobby Diy Oscilloscope
Is it good as a (beginner) hobbyist to crave for an oscilloscope. mail from EA This scope will work from your PC Audio Card or Sound Card. You First need to build the circuit below...
Two Op-Amp Differential Amplifier
The Input Impedance of this module is very high and is symmetric. This circuit can be used for strain gauges and for four wire measurements. If inputs are in mV use OP07. The merit...
