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Generate Gerber files in Eagle

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1. Generating Drill Files To create a Gerber file in Eagle, you should run the drillcfg command first: File -->Run ULP -->  the pop-up "Drill Configuration" dialog box and click the "OK" button to generate the corresponding drill configuration file. 2. Generating Gerber Files Open the .brd file, and then  the "File" menu to open the "CAM Processor" dialog box. In the "CAM Processor" dialog box, select "File" -> "Open" -> "Job ..." command, open the "Open CAM Job" dialog box, select the "excellentone.cam" and click "Open" button. After loading it, click the "Process Job" command to generate the corresponding drill file: In the "CAM Processor" dialog box, select "File" -> "Open" -> "Job ..." command, open the "Open CAM Job" dialog box, select one of the "gerb274x.c...
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A Powerful 30A DC Motor Driver using Power Mosfets [PWM Controlled, Half Bridge]

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By Hesam Moshiri, Anson Bao DC motors are everywhere, from hobby applications to robotics and industrial areas. Therefore there is wide usage and request for suitable and powerful DC motor drivers. In this article, we will learn to build one. You can control it using a Microcontroller, an Arduino, a Raspberry Pi or even a standalone PWM generator chip. By using a proper heatsink and cooling methods, this circuit can handle currents up to 30A. [1]: Circuit Analysis The heart of the circuit is an IR2104 MOSFET driver chip [1]. It is a popular and applicable MOSFET driver IC. The schematic diagram of the circuit demonstrated in figure-1.  Figure-1 The schematic diagram of the powerful DC motor driver According to the IR2104 datasheet [1]: ”The IR2104(S) are high voltage, high-speed power MOSFET and IGBT drivers with dependent high and low side referenced output channels. Proprietary HVIC and latch immune CMOS technologies enable ruggedized monolithic constructio...
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Generate gerber file from Altium

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Step1: The work before generate the Gerber file  Before generate Gerber file, you need to set criteria, but for most of PCB designers, these are not necessarily. The following is a brief explanation of these settings, You can also ignore these setting when generate Gerber file.  1. The settings of PCB shape and size, generally are mechanic1,2 layers. 2. Before generate the Gerber file, the preprocessed of PCB file. The preprocessed include: a. Add break away rails of PCB b. Add stamp hole. c. Add the machine jack. d. Add mouting hole e. Add drilling descript_ion. f. Add dimension descript_ion. g. Set the origin Step2: Generate Gerber file 1. Open the Gerber Files. Step1: The work before generate the Gerber file  Before generate Gerber file, you need to set criteria, but for most of PCB designers, these are not necessarily. The following is a brief explanation of these settings, You can also ignore these setting when generate Gerber file.  1...
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