Battery Level Indicator
Do you have a battery level indicator for a 24V Ni-Mh recharegeable battery source ? Prefer the display as a LED or LCD traveling bar graph. Mail from EY have a look at BVM1...
Author: delabs
Digital Interface Part Two
Continuation of Digital Interface Discussion, only my part of the communication here. This will help you understand some common methods and issues.
Digital Interface Conclusion
Here i am listing the last few parts in this Interface discussion. Only Points to remember are listed. Resistors attenuate voltage or reduce. Current flow has to be limited. The adc may get damaged...
Digital Interface Third Part
Only my Messages are combined here to create paragraphs. Related to Interfacing an Embedded System to external circuits. Pull up means a resistor connected from a point to +V. Pull Down is Resistor connected...
Diode Thermometer
Measurement Of Temperature – When power transistors are used, they may tend to over heat. Likewise resistors may also overheat in the event of faults or short-circuits. The knowledge of their temperatures may be...
Millivolt Source with Digital Potentiometer
Variable Parameters like voltage, current can be obtained by using a Digital Potentiometer. Microcontrollers or Counters operate FET CMOS Analog Switches. The switches configure resistor networks to adjust circuit performance. It could be a...
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 current to turn on small heater-motor-lamp or a bigger...
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 amplification which reduces the Ib error as gain is...
