OWON SPM6103 Programmable Power Supply and Multimeter Combo Teardown Pictures
I did a review of an OWON SPM6103 60V, 10A programmable power supply and 20,000 counts DMM all-in-one switching power […]
ET5410+ Programmable DC Electronic Load Teardown Pictures
MUSTOOL ET5410A+ is a single channel programmable electronic load and battery tester. It is capable of sinking up to 40A […]
A Power Inverter with Arduino Pulse Source
After going through some of the tutorials on Arduino’s site, I really started to appreciate what a powerful platform Arduino […]
A Parallel Port Stepper Motor Driver With Discrete Components
Using PC’s parallel port is a convenient way to control a stepper motor. For unipolar stepper motors, up to two […]
An Isolated MOSFET Serial Port Relay Controller
Using DTR (data terminal ready) and RTS (request to send) pins of a PC serial port (RS-232) without actually using […]
The Simplest MOSFET On/Off Switch
A touch sensitive on/off switch can be made with a single MOSFET. The following schematics illustrate such a switch using […]