Wednesday, July 25, 2012







Showing posts with label Adaptor/ Regulator. Show all posts
Showing posts with label Adaptor/ Regulator. Show all posts

Tuesday, December 28, 2010


Rangkaian Regulator Variable Sederhana


Regulator Variable SederhanaA simple but less efficient method of controlling a DC voltage is to use a voltage divider and transistor emitter follower configuration. The figure below illustrates using a 1K pot to set the base voltage of a medium power NPN transistor.Skema Rangkaian Regulator Variable SederhanaThe collector of the NPN feeds...

Friday, December 25, 2009


Rangkaian Power Supplay


Electronic devices should be powered by direct current supply DC (direct current) which is stable in order to work properly. The battery or batteries is a source of DC power supply is best. But for applications that require greater power supply, the source of the battery is not enough. Sources of power supply is a source of alternating AC...

Tuesday, December 22, 2009


1.25V-15.19V Regulator/Adaptor Variabel Digital


Rangkaian Regulator/Adaptor Variabel DigitalThis is a series regulator with variable output from the digital 1.25V to 15.19V The first section of the circuit comprises a digital up-down counter built around IC1, a quad 2-input NAND Schmitt trigger (IC CD4093), followed by IC2, a binary up-down counter (CD4029 IC). Two gates of IC CD4093...

Sunday, December 20, 2009


Rangkaian USB Power Boster (USB Adaptor )


USB Power Boster (USB Adaptor )USB can be configured for connecting several peripheral devices to a single PC, Since a PC can supply only a limited power to the external devices connected through its USB port, when too many devices are connected simultaneously, there is a possibility of power shortage, Therefore an external power source...

Thursday, December 17, 2009


Regulator 5 volt Meggunakan IC 7805


Regulator 5 volt IC 7805The IC 7805 provides circuit designers with an easy way to regulate DC voltages to 5v. Encapsulated in a single chip/package (IC), the 7805 is a positive voltage DC regulator that has only 3 terminals. They are: Input voltage, Ground, Output Voltage.Skema rangkaian regulator 5 voltLayout IC 7805Although the 7805 were...

Wednesday, December 16, 2009


Adaptor 12 volt menggunakan 2n3055


Rangkaian Adaptor 12 volt 2n3055This adapter circuit can deliver up to 3A at 12V output voltage. The circuit can be employed on occasions when a current of more that 3A is demanded for regulator. IC regulators of such high current rating are pretty hard to find.The transformer T1 steps down mains voltage, to 12rms & the rectifier bridge...


+12Volt|-12Volt Dual Regulator Power Supplay


This is of a dual regulated that provides +12V and -12V from the AC mains. A regulator like this is a very essential tool on the work bench of an electronic hobbyist.Transformer T1 steps down the AC mains voltage and diodes D1, D2, D3 and D4 does the job of rectification. Capacitors C1 and C2 does of filtering.C3, C4, C7and C8 are decoupling...

Wednesday, October 14, 2009


Rangkaian Car Regulator Converter


This is car regulator 12 VDC to 9 VDC converters side for audio, playstation,DVD,etc... The regulator designed for 12DC to 9DC converters that we bring to our design circuit . They are all effective in Switch Mode Power Supplies regulated output. We have developed a series of DC-DC power supply models ranging from 1 watt to 500 watts,...

Monday, August 17, 2009


Rangkaian +5V Switching regulator


Rangkaian +5V Switching regulator used LM2575-5.0. You can make the stable voltage by using the 3 terminal regulator like LM317. However, because the output electric current and the inputted electric current are the same approximately, the difference between the input electric power (The input voltage x The input electric current) and the...

Friday, August 14, 2009


Rangkaian Regulator menggunakan Op-Amp


Regulator is a series of regulations or the voltage output from power so that a portion darinaik effects or voltage drop in net does not affect the voltage ration power to be so stable.Regular circuit of regulators have been good if the ripple voltage is small, but there is a problem of stability. If the voltage PLN rise /down, then the...

Wednesday, August 12, 2009


Rangkaian Regulator menggunakan Diode Zener


Regulator is a circuit of regulations or the voltage output from a ration resources so that the effects of increased tension or decrease in net does not affect the voltage ration power to be so stable.Rangkaian Dasar Regulator Diode ZenerSimple circuit regulator , working on the zener breakdown voltage so that it produces the same output...

Saturday, July 18, 2009


Variable Adaptor ( 3 , 4 , 5, 9, 12 sampai 37 volt)


Variable Adapter (3 , 4 ,5 ,9 ,12 ,16 ,20 to max 37 volt)The LM117 series of adjustable 3-terminal positive voltage regulators is capable of supplying in excess of 1.5A over a 1.2V to 37V output range. They are exceptionally easy to use and require only two external resistors to set the output voltage. Further, both line and load...

Sunday, May 10, 2009


Power supplay (Adapter)


12 volt dual voltage of adapterTransformator 18v-CT (min)Capasitor 35vBridge Rectifier 2 Ampere /100 vc4, c5 Ceramic12 VOLT 20 Ampere of adapterUsing a single 7812 IC voltage regulator and multiple outboard pass transistors, this power supply can deliver output load currents of up to 20 amps. ...

Thursday, February 19, 2009


ADAPTOR 12 VOLT 20 AMPERE


Now it should not have to wrestle again seek op-amp, transistor and other components to realize a massive circuit of regulators, because the circuit of this kind have been packed into a fixed voltage regulator IC. Currently, many components known as the 78XX series fixed positive voltage regulator and the 79XX series is a voltage regulator...

220V AC Operated Christmas Light Star Circuit

220V AC Operated Christmas Light Star Circuit

Here is a simple circuit of Christmas light star that can be easily constructed even by a novice. The main advantage of this circuit is that it doesn’t require any step-down transformer or ICs.
220V AC Operated Christmas Light Star CircuitCircuit of 220V AC Operated Christmas Light Star

Components like resistors R1 and R2, capacitors C1, C2, and C3, diodes D1 and D2, and zener ZD1 are used to develop a fairly steady 5V DC supply voltage that provides the required current to operate the multivibrator circuit and trigger triac BT136 via LED1. The multivibrator circuit is constructed using two BC548 transistors (T1 and T2) and some passive components. The frequency of the multivibrator circuit is controlled by capacitors C4 and C5 and resistors R3 through R7. The output of the multivibrator circuit is connected to transistor T3, which, in turn, drives the triac via LED1. During positive half cycles of the multivibrator’s output, transistor T3 energises triac BT136 and the lamp glows. This circuit is estimated to cost Rs 75.

Note:
This circuit directly connected to the netting of electricity, voltage 220V electricity it could sting you. Avoid working in damp and directly with ground

Circuit Design By: PRINCE PHILLIPS
Source: www.electronicsforu.comwww.electronicsforu.com

Hukum Hukum Rangkaian Teknik Elektro

Hukum Kirchoff Arus|Kirchoff tegangan
- Hukum Kirchoff ArusStates that "all the algebraic number of the flow enters a knot / point in the series is a zero" or "the amount of flow that enters the knot in a series with the same amount of flow that is out of the knot."Expressed mathematically withAs an illustration shown in the picture below:So based on the law applicable kirchof...
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Hukum Ohm

Hukum OhmStates that "the voltage across the various types of materials are proportionate with the straight flow of the stream." Mathematically expressed by:Ohm's law formula can be derived as follows:V is the voltage (in volt), I is the current that flows (in ampere) and R is resistansi or obstacles (in ohm, Ω) which is 1 ohm value is equal...
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Arus |Tegangan|Daya||Energi Listrik

Arus listrik|Electric current (I)Electric current states that the number of load flow in a certain direction on a series of electrical elements of each unit of time. Mathematically expressed by:with,I: electric current (in ampere)Q: electric load (in coulomb)t: time (in seconds)Than the electric current magnitude have also have a direction...
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Analisis Nodal/Simpul/Titik -Analisa Rangkain Elektronika

Analisis Nodal/Simpul/Titik Untuk mempermudah Analisa Rangkain ElektronikaNodal / Simpul /titik Analysis By using this method, we will first obtain the size of the voltage on each of a series in which later can be used to explore the amount of electricity the other.Stages to implement a Nodal / Simpul / Titik Analysis is this:1. Determine...
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Tuesday, July 21, 2009

Analisis Loop/Mesh Pada Rangkaian Elektronika

Analisis Loop/Mesh Pada Rangkaian ElektronikaStages to implement the Loop Analysis / Mesh is this:1. Determine the direction of flow in each loop in the series. Usually selected with the clockwise direction.2. Determine the polarity of each element in the series.a. In the source: cash flow from the polarity (-) to the polarity (+)b. In the...
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Transformasi Sumber

Transformasi Sumber When we apply a method to analyze a series of DC, may be necessary to change the source of flow into voltage source or voltage source into a source flow.Not any source can be transformed. A voltage source in series with the new resistans can be transformed into a source of flow in parallel with resistans. Instead of a...
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Teorema Thevenin - Analisis Rangkaian Elektronika

Teorema Thevenin untuk menganalisis Rangkaian DCThevenin theorems states that any two of the series can be converted into an equivalent set of which consists of a voltage source thevenin (ETH) and a resistans equivalent thevenin (RTH) is in series with voltage source thevenin.Steps to find the rope thevenin is:1. Specify two of the series...
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Teorema Norton-Analisis Rangkaian Listrik

Teorema Norton untuk menganalisis Rangkaian listrik DCNorton theorems is that, any two of the series can be converted into an equivalent set of which consists of a current source (IN) and a norton equivalent resistans (RN) with a source flow dipararel it.Steps to find the rope it is:1. Specify two of the series who want to search string...
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This circuit is of a street light that automatically switches ON when the night falls and turns off when the sun rises. In fact you can this circuit for implementing any type of automatic night light. This circuit can be used to control lights or other electrical equipment with large power to hundreds of watts
The circuit used an LDR to sense the light . When there is light the resistance of LDR will be low. So the voltage drop across POT R2 will be high. This keeps the transistor Q1 ON. The collector of Q1(BC107) is coupled to base of Q2(SL100). So Q2 will be OFF and so do the relay. The bulb will remain OFF.
When night falls the resistance of LDR increases to make the voltage across the POT R2 to decrease below 0.6V. This makes transistor Q1 OFF which in turn turs ON Q2.The relay will be energized and the bulb will glow.
 Control Lampu Jalan Dengan LDRSkema rangkaian control lampu jalan dengan LDR

* POT R2 can be used to adjust the sensitivity of the circuit.
* You can use bulb of any wattage ,provided that relay should have the sufficient rating.
* The circuit can be powered from a regulated 9V DC power supply.
* Click Here! to get the power supply circuit for this project.
* The relay K1 can be a 9V SPDT relay.

A bout LDR ( Light Dependent Resistor )

Working principle of LDR is the LDR resistance will change with changes in light intensity about it. In the dark resistance of LDR about 10MΩ and in light of 1KΩ or less. LDR is made from semiconductor materials such as cadmium sulfide. With this material the energy of the light that falls cause more load to the electric current is released or increased. This means that the material resistance has decreased.
LDR ( Light Dependent Resistor )
LDR ( Light Dependent Resistor ) pic
LDR is used to convert light energy into electrical energy. Automatic light switches and burglar alarms are a few examples of tools that use the LDR. However, because the response to light is slow, LDR is not used in situations where the intensity of light changed drastically.

Saturday, July 21, 2012

Cara Kunci Hardisk Supaya Tidak Bisa Di Copy Ke FlashDisk





Cara Kunci Hardisk Supaya Tidak Bisa Di Copy Ke FlashDisk berguna untuk mengamankan file-file yang ada di dalam komputer dari teman atau orang lain yang ingin copy paste file yang ada di komputer kamu. Hal ini bekerja untuk OS Windows SP1,SP2, SP3, Windows Server 2003 and 2008, Vista dan Windows7. Kalau ada yang ingin mencobanya silahkan saja.


Berikut Cara Kunci Hardisk Supaya Tidak Bisa Di Copy Ke FlashDisk :

1. klik start >> run ketik regedit

2. cari HKEY_LOCALMACHINE\SYSTEM\CurrentControlSet\Control

3. di folder CONTROL, Klik kanan -> New -> Key
terus namain folder baru itu -> "StorageDevicePolicies"

4. lalu di folder "StorageDevicePolicies", Klik kanan > New > Dword (32-bit)

5. key yang baru itu namain : "WriteProtect"

6. klik 2x Key WriteProtect-nya, trus ganti Value Data jadi 1



Untuk mengembalikannya menjadi normal kembali tinggal edit saja Value Data dari key yang namanya "WriteProtect" itu jadi 0 (nol)

Friday, July 20, 2012

Software Gratis Alternatif pengganti DeepFreeze

Software Gratis Alternatif pengganti DeepFreeze

 
Bagi sebagian besar kita mungkin tidak asing lagi dengan program/software yang satu ini, DeepFreeze. Merupakan salah satu software yang cukup populer untuk proteksi komputer dari berbagai masalah (virus, malware, error installasi program dsb). Teknik yang digunakan adalah dengan mengembalikan sistem komputer ke keadaan sebelumnya setelah restart.
DeepFreeze merupakan program berbayar, jika kita ingin mendapatkan fitur sejenis tetapi dengan program gratis, berikut altenatifnya.

Returnil Virtual System (RVS) 2010 Home Free

RVS 2010 merupakan software kombinasi antara antivirus, anti-malware dan virtualisasi sistem yang bertujuan untuk melindungi komputer dari berbagai serangan/infeksi virus dan sejenisnya. RVS 2010 Home Free bisa kita gunakan grais untuk personal dan non-commercial.

Berikut beberapa fitur RVS 2010 Home Free :
  • Virus Guard, Antivirus yang memonitor secara realtime (terus menerus)
  • Sistem safe (virtusl sistem), untuk mengembalikan keadaan komputer seperti sebelunya. Seperti halnya DeepFreeze.
  • Virtual Disk, mampu membuat virtual disk/partisi.
  • Access Protection, untuk menjaga komputer dari penggunaan yang tidak di inginkan
  • Message Center, memberikan berbagai informasi berkaitan dengan keamanan/infeksi virus.
  • Berbagai fitur lainnya
Salah satu fitur yang merupakan alternatif DeepFreeze adalah kemampuan untuk mengembalikan keadaan sistem seperti sebelumnya. Jadi ketika komputer sudah terinfeksi virus, maka komputer bisa dikembalikan ke keadaan sebelumnya. Data atau Update yang sudah tersimpan pun akan terhapus jika dilakukan recovery, sehingga pastikan untuk menon-aktifkan terlebih dahulu RVS 2010 ketika melakukan update dan perubahan penting lainnya.
Lebih detailnya silahkan melihat halaman Returnil Virtual System 2010 Home Free
Download RVS 2010 Free( 33.1 MB)