Electrical Engineering Questions, Problems & Solutions : TransWikia.com ~ Page 30

Does VHDL allow port mapping of a single bit output to multiple bits driven to same value, in one line?

For this hypothetical entity:entity test is port ( a_out: std_logic );end entity;The a_out must drive three signals to the same value where the test...

Asked on 11/11/2021

1 answer

Are Dual Bus Transceiver or Analog Switch best practice to manually switch between SPI devices?

I have two different use cases for 4 lines (this could be an SPI bus or other digital signals). The goal is to manually switch all four lines between the...

Asked on 11/11/2021 by fr_nk

1 answer

Using three phase contactor with single phase motor

If using a contactor for 3 phase motors with a single phase motor, can just the hot (120v) line be passed through the contactor, with the neutral and ground bypassing...

Asked on 11/11/2021 by coolro

0 answer

Why would a "power switch" be designed this way?

This unit is an ARINC 429 bus analyzer, manufacturer "AIT" (Aircraft Interface Technologies), model "429A". Yes, it's confusing. Rated 115VAC/3A/60-440Hz. It has a 250W SMPS inside with...

Asked on 11/11/2021 by rdtsc

2 answer

Why there is not a sqrt(3) factor between rated currents on the delta-wye transformer?

When calculating the rated current on either side of a delta-wye transformer, we will use the following equation: $$I_{LL}= dfrac{S_{3Phi}}{sqrt3*V_{LL}}$$ Since this same equation is used for either...

Asked on 11/08/2021 by sdarella

3 answer

T-bird taillight control unit digital logic help

I am currently working on designing a t-bird tail light control unit. The requirements for the system are presented on the table below: ...

Asked on 11/08/2021 by D.Mensah

1 answer

Loading an FPGA pin at 20MHz in parallel

I'm designing a traction inverter controlled by the NI sbRIO-9627, which includes a Zynq-7020 FPGA. I am considering using a single FPGA pin to drive the external...

Asked on 11/08/2021 by w00t

1 answer

How do i know what resistor value, that's attached to a BLDC motor, i should use in order to get a torque of 100 lb-ft put on my actuator?

Motor P/N is M-3441Y-LN-02D. Back EMF [Ke] is 38.95 (Vpeak/Krpm). Continuous torque 2.495 lb-ft. User manual. I want to run the actuator coupled with the BLDC motor...

Asked on 11/08/2021

3 answer

Is my wiring for this 5m 2812B Led Strip correct?

I'm building one of those infinity mirror cubes: and I have some questions regarding the wiring. This is what I came...

Asked on 11/08/2021 by ColdFenix

1 answer

Why operations on float variable are performed on a double? STM32F401RE, MDK-ARM v5

I am debugging a simple line of code:float temp_f;......temp_f= temperature[0] +(temperature[1] >> 5)*0.125;that is assembled into316: ...

Asked on 11/08/2021 by Artem Glukhov

1 answer

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