The accu cycler project presented here is an excellent solution for charging and discharging NiCd and NiMH accumulators for R/C modelers and others who make use of these accumulator types. With its performance it is very close to the many of the commercial products available on the market.
The 'power' part of the design is not a common choice in similar applications, having in mind of its size and energy dissipation, but it is very easy to understand its principles of operation even for beginners in electronics. The 'intelligent' part of the design communicates with PC using serial port providing additional process visualization. The process graph is saved to on-board EEPROM memory and it is possible to download the data to PC even when the charging/discharging process has finished.
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Build your own LC Meter and start making your own coils and inductors. This LC Meter allows to measure incredibly small inductances making it perfect tool for making all types of RF coils. LC Meter can measure inductances starting from 10nH - 1000nH, 1uH - 1000uH, 1mH - 100mH and capacitances from 0.1pF up to 900nF. The circuit includes an auto ranging and "Zero Out" function to make sure the readings are as accurate as possible ... [more] |
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