4answers

[Others] Can I use a DC sine wave to drive a single phase induction motor?

I wanted to try building a driver circuit for a small induction motor, using an ATMega328P (i.e. the micro in the Arduino UNO) to generate a 5 kHz PWM signal which changes duty cycle every period usin...
6answers

[SMT Stencil] What are the differences and advantages between SMT and THT

What are the differences and advantages between SMT and THT?Which is better, SMT Engineer or molding engineer?
5answers

[Others] If it's ok multiple NPN 8050 transistors be used in parallel to increase the maximum amp draw?

All I have are a bunch of 8050s and I want to use them as power switches for driving a DC motor. Since the motor will draw more then the maximum amperage rating for an 8050 I was wondering if I could ...
2answers

[Others] Variable inductors are more resistant to mechanical vibration?

It seems that many of the transistor based designs rely on a variable inductor to fine tune all of the resonant circuits in the system, and I am wondering why variable inductors are chosen over variab...
5answers

[Others] How to keep good thermal contact? Electrically isolating a heat sink?

I'm making a motor driver board with 4 x BTS7960B motor drivers. I want to put them quite close together and dissipate the heat through some thermal vias and into a heat sink on the opposite side ...
1answers

[Others] Request circuit design

Hi . I wanted to design a fortun pro 2 circuit. (Eagle software design) and program software. Of course, I had sent a request before, but it has been deleted. I am waiting for ...
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[PCB Prototype] tengo una placa , quiero que hagan una copia

hola mi nombre es Edson Ricaldi. tengo una placa que ustedes lo puedan desarrollar, quiero una copia igual.puedo enviar a ustedes .mi placagracias
1answers

[PCB Assembly] How to male CPL file

Hi,I wanted to make a CPL file for you , but I can not find PAD X and PAD Y . I have seen this from your site Designator Footprint  ...
1answers

[PCB Assembly] Need centroid file for your TinyUPS projet

Hi Oleg,I am trying to order your TinyUPS project located here:https://www.pcbway.com/project/shareproject/ATtiny13_TinyUPS_SMD.htmland have it assembled by PCBWay. They need the centroid / pick...
1answers

[PCB Prototype] Pull pin security alarm pcb

How to connect the circuit with batteryWhat is the function off all the ground Pull pin security alarmHow to make voltage input on pcbHow to make it rechargeablehttp://Pull pin security alarm
Ranking Name Answers
1 PCBWay Team 4
2 KhronoSound Audio 1