Free electronic circuit design and schematic diagram
This is Positive Low Voltage Hot Swap Controller circuit with Power Limiter. This circuit gives intelligent control of the power supply voltage to the load during removal and insertion of circuit cards from “hot” power sources or a live system backplane. This circuit uses The LM25069 that gives in-rush current control to limit system voltage transients and droop. This circuit […]
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This is Versatile Boost Converter circuit using TPS108x. The TPS1081 has chosen because it is suitable for application that requires up to 20 V and 100 mA to drive each column of a passive-matrix OLED (PMOLED). the TPS61080 is suitable for application that requires less than 10 V and only tens of milliamps per column for the active-matrix OLED (AMOLED). […]
Read moreThis video tutorial is about gerber files. This video shows how to create and edit the gerber files. Before edit the gerber file, make sure that the PCB layout is correct. After that, make gerber file by selecting file the fabrication outputs then select gerber files. In Gerber setup we can edit the general, layouts, and drill drawing. In general […]
Read moreThis is custom components creation video tutorial. This video shows step by step how to create the custom component. To create schematic library, click file then new library and select schematic library. After that edit the library component properties, then edit the component pin. Here is the video:
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This is Positive High-Voltage Hot Swap Controller circuit with Power Limiter. This circuit uses the TPS2491 or TPS2490 because both of them have some advantages. The advantages of the TPS2491 and TPS2490 are positive high voltage, easy-to-use and has 10-pin Hot Swap Power Manager™ devices. 10-pin Hot Swap Power Manager™ devices will ensure the safety in driving an external N-channel […]
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This is WLED-display backlight driver circuit. This circuit can be used to power WLEDs by replacing the voltage-feedback network with a series current-sense resistor, R3, and the WLED strings. This circuit uses The TPS6108x that drive some series WLEDs in parallel for backlighting larger displays. Here is the circuit:The feedback of this circuit is The voltage across the current-sense resistor. […]
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We can make a very simple battery monitor using a dual-colour LED and a few additional components. When the red and green LEDs are illuminated, the LED produces orange. The following battery monitor circuit turns on the red LED below 10.5v. The green LED illuminates above 11.6v. The orange LED illuminates between 10.5v and 11.6v. This simple battery monitor circuit […]
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