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6 days ago | 
forum.allaboutcircuits.com | Jake Hertz |Luke James
Hi guys, ive recently had a loss and ended up leaving something last minute. i just seem to be having issues with this problem and it will determine wether or not i get into third year engineering. if anyone has seen this problem before or has the expertise to solve it i would be extremly grateful.
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2 weeks ago | 
forum.allaboutcircuits.com | Luke James |Jake Hertz
Looking for a very old magazine article, could be around the 70s/80s. It was an article about communicating with your plants, and was basically a lie detector circuit, with an output to a 50/0/50 meter. Could be either elementary Electronics or Popular Electronics Magazine
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2 weeks ago | 
forum.allaboutcircuits.com | Aaron Carman |Jake Hertz
Hello, i saw the theory behind the differential amplifier and now im building one. VCC is 12V, VEE = -12VItail = 2mA, so ic on each resistor needs to be 1mA. What i did is first of all calculating the needed resistor in order to have 2mA on R1, so its -VEE-(-VBE)/R1=2*10^(-3) , that does R1=5.65know i know that each ic needs to be 1mA and vc needs to be at half of vcc, in order to have maximum swing, so vc is at 6Vso R2=R3 = 6k, is that correct to proceed in this way?
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1 month ago | 
forum.allaboutcircuits.com | Luke James |Jake Hertz
Hello all, can someone give me a hand importing a bjt transistor pnp? I downloaded the file which is in .txt ( see the file ) At this point i dragged it into ltspice and what appears is this: also when i right click on the name, the ''create symbol'' doesnt really appear, what can i do?
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2 months ago | 
forum.allaboutcircuits.com | Jake Hertz |Luke James
I've been trying to write a Python code that recreates the simulation of a simple NPN BJT in LTSpice, but i have been having difficulties on finding the exact equations they use in the software, i have stumble upon some equations that is used in the gummel poon model, but the results in the simulator never matches exacly on the code i create based in these equations. Does anyone know where i can find these equations ?
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2 months ago | 
forum.allaboutcircuits.com | Jake Hertz |Luke James
Hi All - been looking at the specs for the new Lattice Avant platform as I liked the MachXO product for the few low-end designs that I've done. However, it doesn't really seem that Avant has that many differentiating factors against Xilinx and Altera, especially the Agilex 5 which seems like a nice family. Has anyone that designs at the mid-end made the switch over? Why/Why not?
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2 months ago | 
forum.allaboutcircuits.com | Jake Hertz |Jeff Child
You have the CKE and CKP bits here. Look at the datasheet pictures to see what combo gives the needed SPI mode. Use pictures instead of words to understand what's needed. It is confusing because the early documents were wrong. https://microchip.my.site.com/s/art...-and-phase-reword-for-PIC18F-microcontrollersThink about what SPI mode you need , then set the controller bits for that mode. In general:In SPI there is only one clock edge that matters to the receiver.
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2 months ago | 
allaboutcircuits.com | Aaron Carman |Jake Hertz
At Embedded World 2025, Taoglas showed off six new multi-band GNSS modules for future IoT-GNSS applications. While GNSS technology is fairly mature, the integration of amplifiers, filters, receivers, and antennas can pose a challenge to designers, especially as devices continue to shrink in size. To address these limitations, Taoglas’s newest front-end modules offer a highly integrated RF front end in a small package.
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2 months ago | 
forum.allaboutcircuits.com | Jake Hertz
Thanks Ian0, for the quick responceyes that is the case,two blades, that has another two blades below them in parallel. In image, 20250327_185907.jpg, it shows underneath the plastic block, how the capacitor is attached, with the right hand plugged blade into one of the input/output connection, the other is in the right hand corner of the block.
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2 months ago | 
forum.allaboutcircuits.com | Jake Hertz
hello! I am using "CH340C" connected with "DOIT ESP-WROOM-32E" through "UMH3N" to flash my DIY project board. the "CH340C" is powered by 5V(USB) separately. after I inspect my soldering with eye and multimeter for solder bridge and every thing seemed good (no short circuit shown).
