Normally Closed AC SSR
This is a Normally Closed PCB Mount SSR. That means when DC Control input is low, the triac is ON, the output passes the load […]
Month: August 2019
Millivolt Source – Field Calibration Current Loop
This is easy to rig millivolt source for field calibration or troubleshooting of 4-20 mA current loops. Here a Darlington pair is used for current […]
Opamp Supply on Buffered Virtual Ground
When a Inverting Opamp Configuration is at a steady state, we say the Inverting Input is at a Virtual Ground. That means it is at […]
Digital Interface Basics
After a long time a thread of discussion. It is about digital interfacing of embedded system. Only Education Points listed. Initials and country of origin […]
Isolation Resistance and Insulation Resistance
message: what is insulation and isolation resistance, why and how it is measured? what are the consequences if it is not measured? 2008 Isolation Resistance […]
DC Small Motor Control using PWM
message: Greetings, I have a kit motor controller. I works just fine. It uses the NE556. I read some where ( on a NE555 )that […]