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Battery monitor also enables constant - power - boost converter
When powering a microcontroller directly from a battery, it is important to monitor the battery voltage to ensure system integrity. Details... more...
Gain - of - two sample - and - hold amplifier uses no external resistors
If the required voltage gain of a sample-and-hold amplifier is an integer, this circuit achieves a gain of two without using any power-dissipating external resistors. Details... more...
Circuit for measuring motor speed uses low - cost components
A microcontroller-based circuit provides both an LCD readout and an analog motor-speed output. Details... more...