Embedded Systems Conference
Breaking News
Comments
Newest First | Oldest First | Threaded View
<<   <   Page 2 / 2
roldan
User Rank
Author
re: Electric hub motor improves EV range: Part 2—Manufacturability and practical application
roldan   5/13/2011 12:10:53 PM
NO RATINGS
I agree that this design requires a larger number of power transistors. This increases the overall cost. But this replaces a mechanical gear box, plus differential, plus... And I don't understand why power transistors should be larger than for other designs for similar power motors.

green_is_now
User Rank
Author
re: Electric hub motor improves EV range: Part 2—Manufacturability and practical application
green_is_now   5/11/2011 7:16:52 PM
NO RATINGS
series resistance is the limiting issue with this design. Things helping this issue: Larger slow, low RdsON devices can be used (compared to PWM optimized devices) Things hurting this design: Way to large a volt second bandwidth across "gears". So components will be large for the worst case. also current bandwidth is large increasing component size and cost to be able to handle worst case. Clever and interesting nun the less.

<<   <   Page 2 / 2


Radio
LATEST ARCHIVED BROADCAST
As data rates begin to move beyond 25 Gbps channels, new problems arise. Getting to 50 Gbps channels might not be possible with the traditional NRZ (2-level) signaling. PAM4 lets data rates double with only a small increase in channel bandwidth by sending two bits per symbol. But, it brings new measurement and analysis problems. Signal integrity sage Ransom Stephens will explain how PAM4 differs from NRZ and what to expect in design, measurement, and signal analysis.

Datasheets.com Parts Search

185 million searchable parts
(please enter a part number or hit search to begin)
Most Recent Comments
Like Us on Facebook
Special Video Section
The LTC®6363 is a low power, low noise, fully differential ...
Vincent Ching, applications engineer at Avago Technologies, ...
The LT®6375 is a unity-gain difference amplifier which ...
The LTC®4015 is a complete synchronous buck controller/ ...
10:35
The LTC®2983 measures a wide variety of temperature sensors ...
The LTC®3886 is a dual PolyPhase DC/DC synchronous ...
The LTC®2348-18 is an 18-bit, low noise 8-channel ...
The LT®3042 is a high performance low dropout linear ...
Chwan-Jye Foo (C.J Foo), product marketing manager for ...
The LT®3752/LT3752-1 are current mode PWM controllers ...
LED lighting is an important feature in today’s and future ...
Active balancing of series connected battery stacks exists ...
After a four-year absence, Infineon returns to Mobile World ...
A laptop’s 65-watt adapter can be made 6 times smaller and ...
An industry network should have device and data security at ...
The LTC2975 is a four-channel PMBus Power System Manager ...
In this video, a new high speed CMOS output comparator ...
The LT8640 is a 42V, 5A synchronous step-down regulator ...
The LTC2000 high-speed DAC has low noise and excellent ...
How do you protect the load and ensure output continues to ...