Showing posts with label from. Show all posts
Showing posts with label from. Show all posts
Thursday, September 18, 2014
12Volt from USB port Using LT1618
Using this circuit we can catechumen 5V DC from the computer USB anchorage to 12V DC and a circuit like this will acquisition a lot of appliance in USB powered systems. The affection of this circuit is IC LT1618 which is a connected current, connected voltage addition converter. The IC has a advanced ascribe voltage ambit of 1.8 to 18V DC and achievement voltage can be up to 35V DC.
In the circuit resistors R1, R2 sets the achievement voltage. Pin amount 9 is the abeyance pin, beneath than 0.3V to this pin will shut down the IC. Pin amount four is the accepted faculty acclimatize pin. The accepted faculty voltage can be bargain by applying a DC voltage to this pin. If this acclimation is not bare affix this pin to arena and you can omit apparatus R3, R5 and Q1.
Thursday, September 4, 2014
Filter freq dirty from an fm transmitter
Low pass filter is a circuit to filter freq dirty from an fm transmitter. so we get a clean signal. and can maximize the output power generated from the booster. low pass filter is capable to 150 watts. in this post . file [lay] that can only be opened with software sprint layout. for those interested please download here.
Wednesday, September 3, 2014
Free power from the telephone line
This is only for educational purpose.Free schema diagrams 4U team doesnt get any responsibility of misusing this schema.
# Build this schema on a PCB
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