Installation:
You must start by installing a complete distribution, as described below. Then check for updates, which are installed on top of the distribution. The easiest way to bring the distribution to the latest recommended version is to use the Combined Update.
Complete Distributions:
Here are the instructions for installing the complete FreePCB distribution. Download the latest version of the software using one of the links for "Complete Distributions" below. You can choose from: An installer application, with a name like FreePCB_1200_setup.exe.A self-installing archive, with a name like FreePCB_1200_bin.exe.A zipped archive, with a name like FreePCB_1200_bin.zip Install the software into a folder on your hard drive such as C:\FreePCB or C:\Program Files\FreePCB. This folder should now contain subfolders as shown: The subfolder bin contains the FreePCB.exe executable and the default configuration file default.cfg.The subfolder doc contains documentation (such as this User Guide)The subfolder lib contains the core footprint libraries.The subfolder lib_contrib contains footprint libraries contributed by users.The subfolder lib_extra contains less commonly used footprint libraries.The subfolder projects contains folders for each projectThe subfolder src will be empty. You can install the source code into it using one of the "Source Update" links below.If you used the installer application, you were prompted to create a desktop shortcut to start FreePCB. If you used one of the archives, you can make a shortcut manually. Open the .\FreePCB\bin folder in Windows Explorer, and drag the file FreePCB.exe onto the desktop with the RIGHT mouse button. You should be prompted with a list of options including creating a shortcut.
Updates:
These are updates to selected files in FreePCB (usually just the executable, FreePCB.exe). You must have previously installed a complete package, as described above. Then you can download the update, unzip it, and replace the appropriate file(s). The Combined Update includes all of the files necessary to bring the distribution to the latest recommended version. Downloads
Complete Distributions: Version Contents Link 1.2 Installer FreePCB_1200_setup.exe 1.2 Self-installing archive FreePCB_1200_bin.exe 1.2 Zipped archive FreePCB_1200_bin.zip
Ahmet UZUN on 14 Mar 12"0-30 VDC STABILIZED POWER SUPPLY WITH CURRENT CONTROL 0.002-3 A 0-30 VDC STABİLİZE GÜÇ KAYNAĞI İLE AKIM KONTROL,002-3 A Orijinal görüntüsünü görmek için buraya tıklayın. 925x541 px. General Description This is a high quality power supply with a continuously variable stabilised output adjustable at any value between 0 and 30VDC. The circuit also incorporates an electronic output current limiter that effectively controls the output current from a few milliamperes (2 mA) to the maximum output of three amperes that the circuit can deliver. This feature makes this power supply indispensable in the experimenters laboratory as it is possible to limit the current to the typical maximum that a circuit under test may require, and power it up then, without any fear that it may be damaged if something goes wrong. There is also a visual indication that the current limiter is in operation so that you can see at a glance that your circuit is exceeding or not its preset limits. Technical Specifications - Characteristics Input Voltage: ................ 24 VAC Input Current: ................ 3 A (max) Output Voltage: ............. 0-30 V adjustable Output Current: ............. 2 mA-3 A adjustable Output Voltage Ripple: . 0.01 % maximum FEATURES - Reduced dimensions, easy construction, simple operation. - Output voltage easily adjustable. - Output current limiting with visual indication. - Complete protection of the supplied device against over loads and malfunction. How it Works To start with, there is a step-down mains transformer with a secondary winding rated at 24 V/3 A, which is connected across the input points of the circuit at pins 1 & 2. (the quality of the supplies output will be directly proportional to the quality of the transformer). The AC voltage of the transformers secondary winding is rectified by the bridge formed by the four diodes D1-D4. The DC voltage taken across the output of the bridge is smoothed by the filter formed by the
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