Elektronik

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Open Circuits is a wiki for sharing open source electronics knowledge, schematics, board layouts, ports and parts libraries

Brugernyheder (19/12)

CXA2011 er den mest effektive hvide lysdiode?

Brugernyheder (19/12)

CXA2011 har kun en varmemodstand fra chip til hus på 0,4K/W. Ved ca. 14W (270mA, 40V) lyser den som en 60-70W glødepære. Kan fås i varm-, neutral- og kold-hvid.

Ultra-low-power, super-small three-axis accelerometers

Brugernyheder (19/12)

Vishay Siliconix SiR662DP er blevet præmieret

Brugernyheder (19/12)

Datablad: http://www.vishay.com/docs/65253/sir662dp.pdf

A New PFC Control Method for Electronic Ballasts

Brugernyheder (19/12)

Citat: "...The circuit’s simplicity allows the complete control circuit to contained in a small 8-pin IC..."

The death of lead acid batteries

Brugernyheder (20/11)

Citat: "...The lead acid batteries in a forklift seem cheap until you realise that they may have one set cooling another charging and another in use and, even when they do not, life is painfully short..."

Verdens bedste VCO/OFO?: The Vackar VFO oscillator

Brugernyheder (19/11)

Citat: "...Jiri Vackar [Jiří Vackář] invented his VFO oscillator during late 40s. It is probably the most stable VFO oscillator known...The frequency tuning range is above 2.5, not observable in any other type of oscillator. The Coupling...

Mulig DIY højspændings/isoleret op-amp

Brugernyheder (19/11)

ftp://jjlarkin.lmi.net/HVamp.JPG Forfatter: John Larkin. Fundet via nntp://sci.electronics.design ( http://groups.google.com/group/sci.electronics.design/topics )

High-side strømmåling med strømspejl

Brugernyheder (19/11)

Forfatter John Larkin. Fundet via nntp://sci.electronics.design ( http://groups.google.com/group/sci.electronics.design/topics )

SiC transistor der kan tåle 325°C og 1200V/220mΩ

Brugernyheder (19/11)

Oct 28, 2011, SiC “Super” Junction Transistors Deliver High Temp Performance: Citat: "...The leakage current in the SJT at VDS = 1200 V is below 5 µA up to temperatures as high as 225 °C. Leakage currents of < 100 µA were measured even at 325...

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Opslag

DIY MPPT power-optimizere

03/05 2012 Kig i:

DIY MPPT power-optimizere:
http://ing.dk/grupper/solceller/forum/143807

Effektmodstand, hjælp!!

27/04 2012

Switch-mode-strømforsyningens fødsel

18/02 2012 Det flyder med Switch-mode-strømforsyninger omkring os:

"Baglæns" netfilter til SMPS:
http://www.avtainment.dk/forum/baglaens-netfilter-til-smps_topic857.html
Citat: "...Har lige talt op at der er 10 SMPS i sving i min stue (computer, router, kabelmodem, fjernsyn, musik server, DVD osv..."

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