logic circuit

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I am trying to calculate the width and length of each transistor in a 3-input NAND gate (NAND3) and I am getting quite confused. The gate must meet the following requirements: 1. Worst-case switching delay (rise or fall) must be between 1.6 ns and 2 ns. 2. The load capacitance is 100fF. 3...

I need two pwm waves with dead time on PSpice for TI. To do this I opened the LMG5200 file of TINA where it is already done: The problem is that I have to use PSpice for TI (for a serious of reasons), so I redesigned the circuit: In theory, these two PSpice for TI outputs should be the...

You are given a design board with two 4-bit input pins A and B and two output pins: a 4-bit Q and a 1-bit R. Build from gates a circuit that computes (A + B)/2 and asserts it on pin Q. The remainder from the division should be asserted on pin R. For example, if the input is 4 and 2, the output...

Hello allaboutcircuits! The instructions for my task are above. There are no explicit restrictions, but I want to use flipflops for this one. We were taught no prior knowledge except basic gates and elementary logisim operation. I'm learning as I go and so far, an 11-state (0000-1010) up...

Hi everyone, I am currently working a simple 8-bit hobby processor design. I am still in the early phases of designing the processor logic and haven't started on the actual circuit. Premise: my processor's control unit design was inspired by what Ben Eater has done in his project: basically...

Hi everyone! I'm currently working on a digital alarm clock project and have used a website for reference: (https://bestengineeringprojects.com/digital-clock-with-seconds-and-alarm-time-display/) However, I've made some modifications, such as removing the transformer and some diodes. I've added...

Hi everyone, I've been assigned to work on a two-way traffic light system, for cars and pedestrians. I have made a state and truth table, along with some K-Maps I've attempted but are most probably wrong, which are available in the attached file. Based on that, I'm stuck on how to do the K-Maps...

So im trying to make a combinational lock in proteus. One of the issue i've come across is one of my button which is labelled "reset" output high even if its not press but when I connect a logic probe to the line, the cable becomes normal. The second issue is there is a sequence detector that...

Hello all, I’m helping my daughter with a design project and part of it needs a simple led control circuit. Using a single push button and 4 leds, I need an ic circuit that would light led 1 with th e first button push, led 1 &2 with the second, led 1,2,&3 with the third button push, leds...

Hi, I need help with writing a state table of 7 segment with 4-bit input A,B, C "Present state", and x "Input".

Here is my Hardware Interlock Circuit for Gate Signals which prevents both PWM Signals to be at same state at any given time. Here I want to reduce this two AND Gate IC's into a Single AND Gate IC. Or Is there any other way to implement the Hardware Interlock for Gate Signals ? Is there any...

Hello Everyone, I am designing a circuit that operates on pressure sensors to turn lights from red to green, green to yellow, and yellow back to red. I am implementing 2 of the 4 sides of an intersection due to redundancies. How would I design a circuit with 2 inputs and 2 outputs? My plan is...

Hi, I am only on my 5th week trying out TinkerCAD for our Logic Circuits course. We are tasked to create a 7-Segment Display Using Logic Gates only. I did all the boolean expressions needed for each segment using K-MAP, and identified the boolean expression needed to create my circuit. I am...

Hi, How can I implement a 2-bit decoder using a 4 to 1 multiplexer ?

Hello everyone, I'm new here. So I've got this assignment that asks me to use JK flip-flops in order to create a circuit that obeys the following truth-table: The thing is, I have no idea on how to get these results at all. From what I understand, first two lines imply that PRE and CLR are both...

Hello, This is my first post here. I'm trying to learn electronics on my own via different sites At the moment, I'm trying to understand how a NOT inverter works. I perfectly understood what it was used for, but something escapes me on this diagram...

Hello. This is JK flip-flop. I have to convert it into D flip-flop, that it does the same what JK does. Then I have to draw a logic circuit of D flip-flop. I don't know what to do, can you help me?

I want to construct a circuit that calculates the absolute value of a signed 4-bit number in two's complement! So the logic here : assuming we have B = b3 b2 b1 b0 . If b3 is '1' then then b is already in 2s complemnt and should be assigned directly to the output else if b3 is equal to '0' then...

Hi, I am trying to see if this interface will work. I am worried about the Vol to Vih relationship as there is no margin. The vendor of the driver thinks it will be ok. Here are the parameters: Driver: Voh=2.3V (min), Vol=0.8V(max) Receiver: Vih=2.0V(min), Vil=0.8V(max) So as you can see...