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Index 21

ATmega48/88/168 Development Board

Published:2013/7/9 3:12:00 Author:muriel | Keyword: ATmega48/88/168 Development Board

ATmega48/88/168 Development Board
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Wilf Bridge-Head

Published:2013/7/9 3:11:00 Author:muriel | Keyword: Wilf Bridge-Head

Wilf Bridge-Head
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VFO

Published:2013/7/9 3:07:00 Author:muriel | Keyword: VFO

VFO
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VFO/BUFFER

Published:2013/7/9 3:07:00 Author:muriel | Keyword: VFO/BUFFER

VFO/BUFFER
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New AGC circuit

Published:2013/7/9 3:05:00 Author:muriel | Keyword: New AGC circuit

New AGC circuit
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Hartley Oscillator 2

Published:2013/7/9 3:03:00 Author:muriel | Keyword: Hartley Oscillator

Hartley Oscillator 2
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Colpitts Oscillator

Published:2013/7/9 3:03:00 Author:muriel | Keyword: Colpitts Oscillator

Colpitts Oscillator
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Hartley Oscillator

Published:2013/7/9 3:02:00 Author:muriel | Keyword: Hartley Oscillator

Hartley Oscillator
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VCO-Voltage Controlled Oscillator

Published:2013/7/5 1:57:00 Author:muriel | Keyword: VCO-Voltage, Controlled Oscillator

VCO-Voltage Controlled Oscillator
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Solar Tracker Consumes Ultra Low Power

Published:2013/7/5 1:56:00 Author:muriel | Keyword: Solar , Tracker, Consumes, Ultra , Low Power

Solar Tracker Consumes Ultra Low Power
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simple Mini Maximiser

Published:2013/7/5 1:55:00 Author:muriel | Keyword: simple Mini Maximiser

simple Mini Maximiser
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LED3XManual

Published:2013/7/5 1:50:00 Author:muriel | Keyword: LED3XManual

LED3XManual
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RelayAC2

Published:2013/7/5 1:50:00 Author:muriel | Keyword: RelayAC2

RelayAC2
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RelayAC1

Published:2013/7/5 1:49:00 Author:muriel | Keyword: RelayAC1

RelayAC1
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RelayDC1

Published:2013/7/5 1:49:00 Author:muriel | Keyword: RelayDC1

RelayDC1
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LEDBLUEPLC2

Published:2013/7/5 1:47:00 Author:muriel | Keyword: LEDBLUEPLC2

LEDBLUEPLC2
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Mark Tilden's 6-transistor H-bridge

Published:2013/7/5 1:43:00 Author:muriel | Keyword: 6-transistor, H-bridge

Mark Tilden's 6-transistor H-bridge
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LED5S12V Modified for use with a PLC

Published:2013/7/5 1:38:00 Author:muriel | Keyword: LED5S12V, Modified, PLC

LED5S12V Modified for use with a PLC
The schematic is for the Pull Down variant. This version of the basic LED5 can be used as a sensor input to a PLC, Programmable Logic Controller. The output is an Open Collector NPN transistor and assumes the PLC has the associated Pull Up resistors. The actual voltage range is from 4V to 28V. (I can make higher voltage variants also.) I can also make 24V LED5 trackers with totem pole outputs which have both pullup and pulldown transistors. Essentially the same as the standard trackers but with limited drive capabilities. This circuit does not have a parking function. Parking and Reverse Inhibit functions are best performed in the software of the PLC using timing functions. Note! If you don't want the 4.7KΩ or 5.1KΩ 1/6thW passive load resisters they can be removed by clipping one of the resister leads. (View)