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green_is_now
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re: Toward pacemakers powered by heartbeats
green_is_now   4/28/2013 8:26:42 PM
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Thanks for the link Sabastien two thoughts dump the full bridge rectifier for two half bridges. 1) efficiency may double at these low voltages! 2) the common mode noise voltage created by a full bridge currupts the analog front end, getting worse with miniturization due to proximity of the power conversion

Sebastien Boisseau
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re: Toward pacemakers powered by heartbeats
Sebastien Boisseau   10/31/2012 10:33:01 AM
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FYI : more information on Electrostatic and electret-based energy harvesters : http://www.intechopen.com/books/small-scale-energy-harvesting/electrostatic-conversion-for-vibration-energy-harvesting

agk
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re: Toward pacemakers powered by heartbeats
agk   10/19/2012 12:40:45 PM
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Piezo and electrostatic principles are applied for energy harvesting. Piezo will be able to generate more power at least 10 times more than the electrostatic device.Also piezo will have more life time than the other one.

mjacoby
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re: Toward pacemakers powered by heartbeats
mjacoby   10/18/2012 4:30:13 PM
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One step closer to the Matrix!!

seaEE
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re: Toward pacemakers powered by heartbeats
seaEE   10/18/2012 3:25:20 AM
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This is probably as close to a perpetual motion machine as you can get! :)



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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.

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