Plan, sketch, drawing, graph or outline designed to demonstrate or explain how something works.

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1answer
54 views

Help me clarify this really unclear diagram?

5.2 Reduce control IC exposure 2a. Connect VS and COM as shown in Figure 6. http://www.irf.com/technical-info/appnotes/an-978.pdf (H-bridge application notes) Do they want me to connect ...
0
votes
1answer
32 views

I need help understanding how this stepper motor circuit works

This is my first time working with stepper motors. The motor in question is a Portescap 55M048D1B (source: http://www.digikey.com/product-detail/en/55M048D1B/403-1016-ND/417823). I am having trouble ...
0
votes
1answer
45 views

Ladder diagram, variation of Latch and Lock

I have a problem for expanding this particular ladder diagram. The cylinder is a double acting pneumatic cylinder type. START -> Start button A+ and B+ -> Cylinder moving forward A- and B- -> ...
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votes
0answers
60 views

Making eye diagrams for binary signals

This should be relatively simple, but I'm just not understanding it. For a binary signaling of rate \$\frac{1}{T}\$, sketch the eye diagram when the following pulse shape \$p(t)\$ is applied and the ...
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0answers
57 views

Need help creating electric shocker

I'm trying to make an electric shocker (prank buzzer, taser, whatever you'd like to call it) for a Physics project from a disposable camera. The one we're using is a Fujifilm Quicksnap, since we found ...
1
vote
1answer
42 views

Using a block diagram for the RS flipflop, add appropriate gates for a D-flipflop

I have been given the problem "Using a block diagram for the RS flipflop, add appropriate gates for a D-flipflop". Now, I can create the gate diagram for both RS flipflop and D flipflop ...
0
votes
1answer
119 views

State diagram for 2-bit parity generator

So the question I need help with is: Design a minimal moore state machine for a 2-bit parity generator that outputs ‘1’ if the number of 1s in a 2-bit sequence is odd, and outputs ‘0’ otherwise. ...
0
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1answer
74 views

Trouble finding the input in this circuit diagram

Currently having trouble finding the input in my circuit diagram. I am assuming "z" is my output. As of now my input equations I have figured to be: Da = BC Db = CB' + BC' = C(+)B Dc = C'A' Z = ...
2
votes
1answer
92 views

One-Line Diagram Standardized Symbols Information

Good day, people. I'm trying to get into electrical substation design and I'd like to know which standard sets the rules for substation One-Line Diagram Symbols . Any ideas of where can I get that ...
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2answers
100 views

Bench power supply “Issues that rouse during build”

I'm building a power supply, based on this instructable and this one I am using 24volts DC power supply, 7+ amps circuit is based on LM338 / 7805 / 7812 Circuit is working although few things ...
7
votes
4answers
478 views

Can't figure out the general formula for electric circuit

I have the following setup. Note the device in the middle says P, not R, so I now how many Watts the device produces. (I'm not sure if I drew the correct symbol there) Calculating the current ...
0
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1answer
60 views

Depicting Analog Signal Paths graphically

Is there a 'standard' way to depict analog signal pathways / chains that's simple, concise, and not too mathematical? I've been searching online, but can't seem to figure out what such a diagram is ...
3
votes
2answers
72 views

What's these symbols style name/source?

I've found a lot of schematic diagrams that use this style of symbols, specially in the Wikipedia. I think these symbols are pretty clear and stylish. I would love to use them for the schematics I ...
0
votes
1answer
68 views

What does “zo <=500Ω” on the pin diagram means?

There is device (viewfinder). It has "Tally" LED. On the camera's output diagram, on the "Tally OUT Indicator" pin there is marking "zo <=500Ω". What does it mean? Should I supply + voltage on this ...
1
vote
0answers
73 views

Current/Torque - curve for an ASM

There is this exercise where I don't have a clue how to get the solution. It's about asynchronous machines, where with the help of field coordinates the string currents (istr) are split up into ...
0
votes
3answers
64 views

What does having the v in the center, with the positive near the top wire and negative near the bottom wire mean in this circuit diagram?

This is the diagram that I am asking about: I understand that the symbol on the left hand side of that middle branch is a current controlled current source, and the symbol on the right is a current ...
0
votes
3answers
114 views

How Do Batteries Behave In Series-Parallel (Verify)

Hi I am confused about How batteries behave in series and parallel. I read online and saw that as you stack more batteries in series, the voltage adds together and the mA's stay the same, and if you ...
1
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0answers
68 views

Wiring diagram and phase number of three phase transformer

Does anybody have an idea how to draw vector diagram of primary and secondary of a three phase transformer? For instance, if I need to draw vector diagram for Yzn5 diagram and then also draw the ...
0
votes
3answers
184 views

What's the reason for wiring a relay this way?

I came across the following automotive wiring diagram: One thing I don't quite understand is the way they wired the relay. I've got two main questions. It appears to me that they used the exact ...
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votes
2answers
208 views

How to calculate address range of memory chips

Hi I am not an Electrical Engineer but need to know something about Memory address ranges. I need to calculate address range of each memory chip(62256) from let suppose bank 1 in below diagram. How ...
0
votes
0answers
90 views

Constellation Diagrams of Codes

I am suppose to draw constellation diagrams of these signals: They are unipolar codes such as Unipolar and Bipolar NRZ code, Unipolar and Bipolar RZ and Manchester code. I am pretty new at this. ...
0
votes
1answer
64 views

ACS758KCB Wiring Diagram

I am using the ACS758KCB Hall Effect sensor for a project. On the front page of the Datasheet it list a .1uF capacitor between Vcc and GND, in addition it lists a capacitor, Cf, between GND and ...
0
votes
1answer
175 views

Undefined part of CSR8645 chip

I am trying to build a bluetooth audio headset and decided to use CSR8645 chip, but while trying to understand diagram of this chip i couldn't identify one part of it. I am uploading picture ...
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votes
0answers
136 views

Applying euler path to CMOS schematic with inverter

I've discovered that tracing the Euler path of a CMOS schematic can aid in creating compact stick diagrams. I have an issue, though. Of all the lectures I've read on the net, the pull-up and ...
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0answers
155 views

How does this circuit with three transistors work?

I don't understand how this circuit works. Its a clap switch circuit with transistors. I would appreciate if someone could explain how the current flows through the circuit and which transistor ...
1
vote
2answers
128 views

Need help identifying a strange symbol in a wiring diagram

I have this simple wiring diagram for an old tractor, and there are some symbols that look almost like diodes, but not quite. I have highlighted most of them in red in the attached image. Do these ...
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votes
2answers
187 views

Capacitance - Voltage characteristic diagram in a Schottky diode

I 've searched the web for that diagram with no satisfactory result. Does a schottky diode has capacitance or not because of very tiny depletion (almost none) zone ?
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1answer
203 views

Are these H-Bridge circuits set up correctly?

I know I can use a driver chip to simplify this a lot, but I just want to make sure that I have the concept of H-Bridges down. Here they are: I have two motors, and each have 4 N-MOSFETs ...
0
votes
4answers
147 views

Did I do this circuit diagram correctly?

I just need some feedback on the circuit diagram I made (it's my first time): This is for a mini-car. There are two battery packs, one connected to an Arduino UNO, and the other connected to two ...
5
votes
4answers
1k views

Why is the capacitor short-circuited in this example?

Please forgive me if anything wrong in my question. I am a school student. I have following circuit diagram: simulate this circuit – Schematic created using CircuitLab There are three ...
0
votes
1answer
173 views

Drum machine circuit diagram

I'm having trouble understanding this circuit. Can someone help me get through it? I'm trying to understand what the signal is doing from start to end but keep running into electrical deadlocks.
5
votes
2answers
223 views

Diagram symbol I've never seen

So my buddy brought me his Kawasaki Ninja service manual and asked me what this symbol is - sort of looks like part of a diode with a box instead of a line and is half shaded. I've tried looking it up ...
3
votes
4answers
180 views

How to read this basic schematic?

I need to build a circuit where light is converted to sound. The light falls on a CDS cell and the current is passed through the NPN transistor to amplify it. I know this is a very simple ...
0
votes
0answers
197 views

3.5mm to 3.5mm female mount wiring

I am trying to make a detachable mic mod similar to this: Full Description I have done everything in the pictures but something in the wiring is wrong or I have the wrong cables eg: the mic ...
-2
votes
2answers
224 views

Drawing a diagram of a one-bit adder [closed]

How can I draw a diagram of the one-bit adder (full, including the transfer) built with the smallest possible number of logic gates?
1
vote
2answers
269 views

How to complete circuit diagram?

I have limited knowledge on electrics and wanted to ask how I can complete this circuit, how would I go about wiring it up? Bulb should ONLY be ON when Input A is ON and Input B is OFF. Bulb should ...
0
votes
2answers
301 views

Software to draw state diagrams and asm charts? [closed]

I would like to draw state diagrams and asm charts like these: Any recommendations? Are these done with Microsoft Visio?
1
vote
0answers
232 views

Question about vending machine circuit

I have this assignment I finished for a vending machine circuit. Just as some background, there are three inputs for nickels, dimes and a return option. The return option is for only one nickel/dime ...
0
votes
1answer
377 views

Output voltage diagram of a 3-input OR logic gate (using diodes)

Let's say we have a 3-input OR gate (using 3 diodes and a resistor) as follows: A hypothetical input voltages diagram is the following: I want to find the output voltage diagram (voltage Vo) that ...
0
votes
2answers
122 views

Timing Diagram question

Can anyone check my timing diagram for me? I have my exam tomorrow and just want to make sure I am understanding these correctly: Any feedback is appreciated. Thanks in advance
1
vote
1answer
289 views

Is the DESIGN of an MPPT Solar charger SUPPORTING combination with regular battery charger on the LOAD side? [closed]

I just got my "LCD 30A MPPT Solar Panel regulator" for my caravan, but connecting it raised an issue. It looks like this: ...
0
votes
1answer
477 views

Phasor Diagram with AC circuits

Suppose you take a 2*10^2 resistor and a 0.40 inductor and make a series circuit with a voltage source that has voltage amplitude 30 and an angular frequency of 2.5×10^2 . **Part F (The part that I ...
1
vote
3answers
254 views

What do the abbreviations “SPF” and “SPH” mean with respect to fuses? (Single line drawing for 480 V system.)

There are two lines connected between the transformer low voltage side and the 480 V bus, one with a fuse labeled "SPF" that connects to a GE power quality meter, another with a fuse labeled "SPH" ...
0
votes
1answer
36 views

Structure function solving

I have following block diagram, I am having trouble constructing structure function marks for this block diagram. What concerns me is that OR state from State 5 to State 2 and State 6. I thought ...
3
votes
2answers
848 views

How to create block diagrams efficiently?

TL;DR: Need good block diagram schematic drawing process. Table of Contents Topicality and Relevance Question Topicality and Relevance Topicality: John F. Wakerly, in his book Digital Design: ...
0
votes
1answer
93 views

AC to DC Filter Confirmation

Of the circuit I need to know the name of and what it is; my guess is, is it an AC to DC current converter? Is anyone able to confirm or deny? What does it act as when its all formed together? ...
1
vote
3answers
630 views

Forbidden S-R Latch Timing Diagram

How do you represent a forbidden state of an S-R Latch (Active High) in a timing diagram? Where S is 1 and R 1 is and C is 1.
0
votes
1answer
274 views

Sequential Circuit Diagram: D Flip-Flop

Sequential Circuit Diagram: D Flip-Flop Answer Key ...
4
votes
2answers
192 views

What is the sensor name and use and circuit diagram for Current TV will be used based on Body parts movement?

I want to know more about the Sensor which are used nowadays in the TV and Laptops we can access the functionality by moving our body parts. also used in Game play in Playstations, Laptops to change ...
3
votes
2answers
216 views

tsop348 infrared receiver

Why do they tell that • Burst length should be 10 cycles/burst or longer. After each burst which is between 10 cycles and 70 cycles a gap time of at least 14 cycles is necessary whereas I ...