nº855

USB dummy loads and micro-USB to standard USB A receptacle adapter. Suitable for connecting USB standard connector 1A dummy load to universal Qi 5W wireless receiver type A/B with micro-USB connector.

nº854

Constant current, adjustable(up to 1A) dummy load for Li-ion batteries. For 100% discharge from 4,2V downto 3V. Discharge current is 1mA per mV measured. Supply 9V. No current drift during discharge. Led off means stopped discharge.

nº853

Experimental board for simple lithium-ion battery capacity tester with constant current dummy load adjustable up to 500mA. supply 5V.

nº852

Li-ion/Lipo battery cell simple capacity tester:
- Discharges @1C for batteries up to 500mAh.
-Stops discharge @ 3V (led OFF).
- C=Id(mA)xT(h).

nº851

Method for transforming polar electrolytic capacitors into non-polar capacitor.

nº850

- Mains voltage detector, supply 1xNiMH.
- Detector de tensão de rede, alimentação 1xNiMH.