Application of 6A05G Power Diodes in a Simple Yet Effective Voltage Adapter Module for Electric Cars

[ABSTRACT]Some types of electric cars use 48V battery. The Rinus C1, the one we developed, uses six eight-volt-battery units connected in series. As this battery’s voltage level is higher than the level needed by electrical / electronic devices in the car, a DC/DC converter or a voltage adapter is therefore required. In our case 12V voltage supply is required by the car lightings, electromagnetic door openers, a tablet PC and a multi-purpose USB charger. We have previously developed an efficient 48V/12V switched-mode DC/DC converter however an issue has been recognized: the complexity of on-board cabling of our circuit (although not so complex) rose the risk of module malfunction due to unintended cable displacement by a technician during the eCar assembly and maintenance. Having studied the case, we come to an idea that a simple voltage adapter may fit the need better. For this aim a general-purpose power-diode is predicted to be a good choice for the voltage dropping task considering its current capacity suitability to our client’s requirement and its wide availability in the market. The current-voltage characteristics of a power diode (6A05G) is studied. Based on the data obtained, a simple voltage adapter module is successfully developed using a series of diodes as voltage droppers. The module is now used in the car. In addition to that, the module simplicity implies easier, faster and cheaper development.

https://opac.ll.chiba-u.jp/da/curator/107842/

https://opac.ll.chiba-u.jp/da/curator/107842/ceresIntlSympo-24-P220.pdf

Chiba University. Center for Environmental Remote Sensing

千葉大学環境リモートセンシング研究センター

Presentation

Proceedings of the CEReS international symposium = CEReS国際シンポジウム資料集

24

220

229

2016-11-21

eng

publisher

Proceedings of the symposium on environmental remote sensing