jegues Posted August 5, 2013 Report Share Posted August 5, 2013 Evening gents,I'm trying to pick out MOSFETs along with a MOSFET Gate Driver from International Rectifier that will suit my needs. (See http://www.irf.com/indexsw.html)The MOSFETS will be used in an H-Bridge configuration, with the MOSFET Gate Driver driving the gates of each respective MOSFET. This circuit will be used for a motor controller.The batteries used to power the motor are Lithium Polymer batteries manufactured by GBS batteries. The batteries have sixteen 3.6V cells connected in series to have a rated voltage of 55V and a capacity of 60Ah. The motor is a permanent magnet brushed DC motor from Motenergy, model part number ME0708. The motor has a lead to lead resistance of 0.01Ω, and a lead to lead inductance of 0.055mH at 120Hz. The motor is rated for 48V and 100A, but can handle up to 300A for one minute, and has maximum peak torque of 37.8 Nm and maximum rotor speed of 5000rpm.A switching frequency of ~15kHz is assumed.The datasheets for both the motor and LiPo battery bank are attached below.1) What part number MOSFETS would do you recommend I use? Also, for my current requirements (i.e. up to 300A for one minute) should I use multiple MOSFETs in parallel, or opt out for a single MOSFET with higher current carrying capabilities?2) What part number MOSFET Gate Driver would you recommend I use? Assume the MOSFET Gate Driver will be driven from a 12V supply.Thanks again for all your help and any suggestions/advice/recommendations you may have for me!EDIT: What I've found so far,1) Placing two of these MOSFETs in parallel, http://www.irf.com/product-info/datasheets/data/irfp4468pbf.pdfME708_Mech.pdfME708_Perf_Curves.pdfGBS_60AH_Specifications.pdf Quote Link to comment Share on other sites More sharing options...
Guest Circuitryman1111 Posted October 2, 2013 Report Share Posted October 2, 2013 An H bridge is an electronic circuit that enables a voltage to be applied across a load in either direction. These circuits are often used in robotics and other applications to allow DC motors to run forwards and backwards.Most DC-to-AC converters (power inverters), most AC/AC converters, the DC-to-DC push–pull converter, most motor controllers, and many other kinds of power electronics use H bridges.Also for further operation I suggest you to go for more information about MOSFET visit the link http://en.wikipedia.org/wiki/H_bridgehttp://actpcb.com/blog/Thanks!!!! Quote Link to comment Share on other sites More sharing options...
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