Hydrogen Fuel Cell RC Car

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This Hydrogen Fuel Cell RC Car Upgrade Kit is one of the coolest RC cars kits I have seen in a long time. It is pricey though, hopefully when these hydrogen fuel cells become more common place the price will come down to earth.

The H-cell is a unique integration upgrade kit for electric hobby R/C cars, designed as a drop in unit that can fit inside widely available Tamiya TT-01 type chassis. The H-cell system designed by Horizon Fuel Cell Technologies includes a 30W air-cooled, air-breathing and self-humidified PEM fuel cell stack

with integrated bright blue light-emitting fans and a sleek aluminium casing. The integration kit also includes electronic controls, a miniature pressure regulator and three 10L metal hydride canisters in a hydrogen storage rack. At maximum power output and with a single charge, the H-cell can run the car at 35 km/h for over 1 hour, as opposed to just 15 minutes with the conventional Nimh battery.

Renesas launched R2A20051NS lithium-ion battery charge control IC

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Renesas Technology Corp. (RenesasTechnologyCorp.) today announced the availability of R2A20051NS lithium-ion battery charge control IC, it applies to products such as digital cameras built-charging circuit. Sample was October 3, 2007 began in Japan.

R2A20051NS using a smaller 2.7mm × 2.5mm10-pin SON (small no-lead) package. This is the most common applications by limiting the non-protection and reduce the number of pins to achieve. When compared with current Renesas products, the device can reduce the mounting area of about 75%, while integration of the charging FET switch, as long as the addition of a resistor as a peripheral device charging circuit can be achieved.

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R2A20051NS on-chip protection functions the same as with the current M62249FP, in fact, including the security lithium-ion battery all the necessary protection features, such as the adapter is detected, over charging, over-voltage and temperature protection features, as well as monitor the charging time of the two timing device. Take advantage of these features to add at least as long as the R2A20051NS components, you can implement complex security design of the charging circuit to help simplify the development process. In addition, you can achieve 4.2V ± 30mV of the charge control voltage to achieve high-precision charge control.

R2A20051NS chip integrates a temperature detection circuit, the charging process based on the chip temperature limits the charge current value. Moreover, if more than a predetermined temperature, it will mark the error and run charge thermal shutdown features to help achieve a more secure implementation of the charging circuit.

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