How to Repair Fan Motor

If you have broken fan motor because of broken winding stator you can fixed it with easily just buy ones the winding stator motor like this. In my country it is about Rp 78.000 ($78). But you must check the same size and type. And then wiring of the stator motor connect to cables like this:A common wiring like this: White Cable:  is main (center) Capasitor: 1. Red <==> BLUE cables [of stator cables]                  2. Black  <==>  Oranye cables [of stator cables]                  3. other cables for speed...

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USB to Serial Converter Home Made without Microcontroller IC - No need programming

USB to Serial converter home made without IC microcontroller or no need programming can realization using special IC for that. It is TF 232 BM. For more explanation will shown in this circuit: At the PC side you need driver software (winxp and lower) but for win7 up no need driver. Complete Circuit/Driver/Schematic can download at HERE Most of today's PCs and notebooks began to leave the serial port and switch to USB. The use of USB is more practical because in addition to its speed higher, this port has a 5 volt voltage source that can be used to provide resources on an electronic system that is connected...

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Step Down Power Supply Up to 30A Output

This circuit is so simple for step down power supply with the one IC controller like this Key Features Fully-encapsulated dual step-down switching power supply Up to 100W output from a 17mm square PCB footprint Dual 15A or single 30A output Up to 95% conversion efficiency 4.5V to 20V input voltage range 0.6V to 6V output voltage range 1.5% output voltage accuracy with differential remote sensing Up to six modules may be paralleled to support 180A output current Output over-voltage, over-current and over-temperature protection Full power operation without heat sinks or fans QFN package with exposed leads permits...

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AC Led from 220V AC Line

This circuit will show you how to build your own balm with diode LED AC line 220V/50Hz. This circuit is so simple just make DC current from the AC line trough bridge diode, but you must READ carefully its DANGEROUS seriously is HOT CIRCUIT make sure to be carefull. It can be output 3 Watt or 5 Watt and read the C1 value for it. If  3 watt LED can flow 40 V DC 16 serial LED C1 must be 1000nF/400V. The ouput 5 watt C1 must be 1200nF/400V  the led be serial 24 LED. The result: ...

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TV Remote Control Jammer

In this circuit I found from DMohanKumar site, so thi circuit copy Right to him.In simple explanation this circuit will produce frequency at 38Khz be transmitter by Infra Red, This 38Khz frequency will jamm the frequency of remote control of your TV box. For valid and frequency tunning just adjust VR potensiometer as variable resistor ...

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