Technical Writer
Oliver is an experienced electronics engineer with over 7 years of experience developing products in IoT, consumer electronics, and medical devices. He is highly skilled in analog circuit design, embedded systems, PCB layout, firmware coding, and prototyping electronic products. Oliver’s expertise encompasses the full product development cycle, from concept to mass production. He holds a Master’s degree in Electrical Engineering and leverages his deep technical knowledge to deliver innovative electronic solutions.
I am getting a PCB manufactured for a project that I am working on. One of the parts, the A4950 motor driver, has a “pad” on the bottom, which is meant to be soldered to GND of the PCB for thermal dissipation. I was thinking about the prototyping, and I am unsure how I would go about (using a soldering iron), soldering the pad on the bottom.
I recently ordered some PCB bits from a new supplier to assemble a widget. I want to make temporary connections between different PCBs, but am not convinced I want to solder and then desolder and resolder wires while I am testing and prototyping. Is there any tips for doing that?
I’m using some 0.1% precision 10k and 150k resistors. They are thin film 0603 surface mount. For a lot more, there are also thick film types. Fundamentally and practically, what is the difference between these two?
Some online tutorials about soldering TH components, like transistors and ICs, are delicate components and can be easily damaged by heat. When it comes to soldering surface mount IC and components, some prefer to use a reflow oven which heats up the them to a temperature above the melting point of solder. So why?
I have designed a power supply card using V7805-2000. Copper thickness is 70 microns, board size is 5 cm × 5 cm. When this underwent vibration test the regulator came off, broken into two pieces(regulator leads are in the holes). How is it going?
I am working on a project that uses small Bluetooth low energy (BLE) beacons to track important items. Is there a way to connect two antennas to a single BLE module that could either listen/broadcast on both antennas or multiplex between the two? Or any other idea?
There is a copper pour over the entire top of the my PCB, which is part of GND net. It turns out that the surface mounted 1W LEDs I’m going to use have the heat slug connected internally to the LED’s +ve terminal. Can I rely on the solder mask to insulate the +ve voltage (~3V ish) from GND? Long term?
I’ve typically used RF switches for this purpose, but that’s also when it was necessary to allow the antenna selection to be changed “in the field”. But for cases where the antenna selection is a manufacture-time option, I’m considering simple zero-ohm resistors.
I have a set of LED driving lights for motorcycle that must be wired through a ground-leg pulse width modulation dimmer. The problem is the mounting bracket for the lights is grounded, so the lamp shorts to ground through the motorcycle chassis and the PWM dimmer cant dim the lamps. How do I handle this problem?
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