Pratikum dasar telekominkasi banyak memakai rangkaian PLL. Apa itu rangkaian PLL ? PLL kependekan dari 'Phase-Locked Loop' pad...
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Dual Regulated Power Supply High Current
The circuit given here is of a regulated dual power supply that provides +12V and -12V from the AC mains. A power supply like this is a ver...
Free Switch Mode Pre-Regulator
The botheration was that a voltage regulator had to bead the 18 volt capital ability accumulation voltage to 8 volts at 500ma to ability ...
78XX Family Regulators Universal PCB for PSU
Many DIY projects require a small Power Supply. The 78XX family is ideally suited for this job, and with this little PCB you can easily bu...
RS-232 Reset for Microprocessor
Introduction This circuit allows a remote microprocessor to be reset by a controlling host by sending a break signal over an RS-232 or ...
Keyboard Given Bluetooth Hardware by I-O
At present many PDA come equipped of one, not always comfortable one, keyboard hardware. And like making for those devices that they are unp...
Voice Broadcaster
This voice transmitter is a short range transmitter which has a 15 meters range without an antenna,and this can be increased several times ...
Water Level Monitor
This single chip based CMOS circuit can detect water levels in a water tank,pool,channel etc,. and display on an easy to interpret is leve...
Austere Ni-Cad Cell Charger
This simple,low cost ni-cad cell charger can charger up to two AA or C sized cells at one time at the standard rate of 40 mA.The unique fe...
The Pocket Receiver
Not that there is any paucity of pocket receivers or that they are too expensive,or that there are hardly any well known circuit that we dec...
The Solar-Powered Robotic Automower
As you look over your neighbor’s lush, green lawns, remember that his garden didn’t turn out that way overnight. So stop turning green with ...
BlackBerry : native push notifications
Today we’re launching the most requested feature for BlackBerry: native push notifications. Now, after you download the new version of fo...
BlackBerry Micro-USB Car Charger
When you're on the road, a fully charged BlackBerry device is more than a convenience - it's a necessity. Now it's easier than...
The input/output (i/o) ports in CPU
Computer I/O (input/output) port allow the CPU to control devices in the outside world.Signals may be output to control lights,motors and he...
Digital Computers
Modern computers are digital computers. Digital systems operate in a limited number of finite states,usually only two,as is the case wit...
Circuit adjustable power supply lm350k 3 amperes
schematic power supply lm350k Components: T1 – Transformer (110 or 220V) / 24V (or 12+12) / 3A. IC1 – Integrated Circuit LM350K (...
RF Remote Control 2 Channel schematic
The receiver constituted by RF receiver bore RLP434A at 418MHz, the microcontroller AT90S2313 and the 2 relays with can handle any electr...
IR232 Infrared to RS-232 Converter
The Industrologic IR232 is an infrared to RS-232 converter that is based on the 12 bit Sony SIRCS protocol. In addition to being able to se...
10W Audio Amplifier circuit based on TDA1910
Simple and cheap, that's the advantage of this circuit. Although the output power is not high but audio quality is good, because TDA1910...
TDA7295, 80W Audio Amplifier
Below is a 80W amplifier circuit is constructed by using a power IC TDA7295. With a very simple design, makes this circuit very easy to buil...
6VDC to 12VDC Converter circuit
This is the circuit diagram of 6VDC to 12VDC Converter . With this circuit, you can doubled the input voltage of 6V DC to become 12V DC outp...
32W HiFi Amplifier circuit based on TDA2050
This is a High Fidelify (Hi-Fi) amplifier circuit based on single IC TDA205 . This is a mono channel audio amplifier. You need to build the ...
AVR microcontroller a architecture and series types and facilities
AVR microcontroller is one type of architecture that became the mainstay Atmel microcontroller. The architecture is designed to have many ad...
Globe WiMax 4G goes Prepaid
So it’s bound to happen — Globe Telecom’s 4G/WiMax Service is now offered in prepaid plans. Just buy the WiMax modem and load it up to get ...
What Is The 4G Wireless Technology?- A Basic Information
We have seen and use the 2G (second generation) technology and 3G (third generation) technology. They are some old and current technologi...
4G Wireless Network Technology
The name 4G is for further advance invention in wireless networks likely mobile phones to the up coming generation. One contributor in se...
The Pocket Receiver
Not that there in any paucity of pocket receiver or that they are too expensive, or that there are hardly any well known circuit that we dec...
Automatic Direction Arrow
Quite a few of use have,especially during parties, landed into a kitchen store or a cellar in an attempt to find the bathroom in someone,s o...
Line follower with atmega 16
Here the complete electrical circuit diagram of line follower robot which built based on ATmega16. There are three modules of line follower...
LT1300 Solar Powered Power Supply
LT1300 Solar Powered Power Supply This architecture was generated as allotment of a alien acclimate base project. One of the requiremen...
Xtreme infrared remote control
A/V remote controls in my sister's home are always undergoing torture tests. Thus far, none have passed muster. One of the more recent ...
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Programmable Logic Controllers (PLCs)
Programmable Logic Controllers (PLCs), also referred to as programmable controllers, are in the computer family.They are used in commercial...