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-2
votes
1answer
28 views

Current overlap in Inductive Smoothing?

I have the following circuit implemented in the lab : And the output was : Can anyone explain why the current overlaps here ? I can't make sense of this.
0
votes
1answer
54 views

How to solve this circuit using mesh analysis?

simulate this circuit – Schematic created using CircuitLab How would I solve ...
0
votes
0answers
42 views

battery charger using pic [on hold]

i designed a 6V battery charger powering from solar panel. I'm using pic16f73. The whole circuit is powering from either solar panel or 6V battery itself. Battery voltage and panel voltage are ...
0
votes
0answers
27 views

Help with harder version of carry chain adder?

I am designing an addr circuit given cin = 0, given a nand of the operands i want to add, their xor, and nor. I have drawn it in a software but i am not getting the right output, i have tried to ...
1
vote
1answer
81 views

Circuit seems to lack something

http://www.electronicecircuits.com/electronic-circuits/cd4060-timer-circuit-1-minute-to-2-hours I've replicated the circuit in the given link but \$D_2\$ in my circuit doesn't work at all. Also, the ...
-17
votes
0answers
52 views

I HAVE GOT ASSIGNMENT AND I WANT ACCURATE DEFINATIONS please [on hold]

What is linearity and time invariance?? i am a beginner and i dont know much about electrical systems so kindly explain your answer.
-2
votes
1answer
27 views

Finding Vo with superposition method

simulate this circuit – Schematic created using CircuitLab
0
votes
0answers
21 views

Implementing Peltier temperature controller in a circuit

I need to measure the temperatures of semiconductors using a Peltier temperature controller. I am using a DT9818 (it's a USB collection board from what I have learnt). I would need to use software ...
0
votes
3answers
69 views

Circuit to tune multicolor LED colors with a variable knob (rheostat?)

I am looking at getting some multicolor LEDs, which have Red Green and Blue inside of them. I'm doing this for space saving, rather than using 3 different LEDs--I am using just one. What I want to do ...
1
vote
1answer
40 views

Finding equivalent capacitance part II

Here's part I! They helped me a lot. But this problem is harder so if you can tell me where, if, I went wrong. When first switch is closed, the other one's opened. And in reverse. Here's solution ...
2
votes
2answers
54 views

Removing hot glue

When modding electronics it is usually recommended to apply copious amounts of hot glues when you solder a wire to a board contact pad to prevent accidental removal of said pad from the board.. I did ...
-2
votes
2answers
82 views

Finding equivalent capacitance

Sorry, for the quality, someone could do this in the editor but I think you can see what's what. That is a switch in middle. How do you find capacitance when p(switch) is closed, and how when it's ...
0
votes
3answers
101 views

Can I put 2 voltage regulators (5V) in parallel to dissipate the heat better?

I connected around 10m of christmas light LEDs to a 5V voltage regulator (lm7805). It gets quite hot, put I can still touch it without burning my finger. So in is within its temperature range (120 C ...
0
votes
2answers
80 views

Why don't over damped and critically damped circuits oscillate?

The reason underdamped LRC circuits oscillate is because the energy keeps flowing between the inductor and capacitor. The energy is being constantly exchanged between the capacitor and inductor ...
1
vote
2answers
74 views

What's the difference between virtual circuit switching and circuit switching? [on hold]

Circuit switching's packets take the same route as virtual circuit switching's do. So, how do I distinguish between virtual circuit switching and circuit switching?
0
votes
0answers
21 views

What is Zero input response in this problem

If we have a LTI system and we know its response to is know we want its zero input response.(without Laplace Transform)
0
votes
0answers
42 views

MOSFET to control the sensor signal with using logic gate or capacitor

I have a problem, because I don't know which solution is better. I used two MOSFET transistors (N-channel and P-channel) to control the sensor signal. Sensor generates signals with range of 240mV to ...
0
votes
0answers
55 views

Calculate current in an series RC circuit with a DC square wave source?

Am still a noob in electronics so bare with me, In the image bellow how is the voltage drops found and the current in the meters, what is the formula? and if instead of a capacitor an inductor is used ...
0
votes
1answer
46 views

Interfacing switches with microcontroller

Im trying to interface momentary push-button switches to my Stellaris EK-LM4F120XL. Im using a positive logic interface, to momentarily set pin as HIGH if the button is pressed. A 10K resistor is ...
0
votes
1answer
37 views

Transfer function and its magnitude

Can anyone make the transfer function and magnitude of the transfer function more intuitive for me? I understand using them but I feel like there is still a gap in my understanding. I would like to ...
0
votes
0answers
34 views

Two motors in series circuit with individual on off switch?

I'm brand-new to electronics, I'm trying to wire 2x 12 V fan motors at 0.3 A to a 12 V 0.6 A power supply in series. I would like to have an on/off switch that controls each of the fan motors either ...
0
votes
1answer
47 views

Voltage limiter with LM358

I have a problem with circuit, because I don't know how to design a voltage limiter. I connect to the input (In) sensor that generates signals with range of 240mV to 940mV. Next, The signal output ...
1
vote
1answer
45 views

can I charge Mobile battery using mobile charger directly?

I want to charge mobile battery of 3.7 v directly by connecting 2 terminals of charger(5 v output) to two terminals of battery. My questions are Is IT POSSIBLE? what must be voltage adjusted to ...
1
vote
3answers
150 views

Bike light blink speed adjustment

I am trying to construct a circuit to control an LED in a bike light kind of circuit. This circuit must be designed so that a button press can change the current setting of the light. So for instance ...
-2
votes
0answers
33 views

Ring system of wiring [closed]

very appliance is connected in parallel in this type of wiring right? Ring system of wiring for Household Circuit can you please explain how is the arrangement done? if possible please send me a ...
0
votes
1answer
64 views

Buffer Capacitors [duplicate]

What does a buffer do? In the given circuit,it is said that capacitors C1 and C4 act as buffer .What is their role here?Can't we just replace them with pull-down resisrors?
2
votes
0answers
52 views

What could this PLA be doing?

The picture below shows a PLA, I have done part (a) and found out that; F0 = A0 xor B0 F1 = A0B0 + (A0' + B0')(A1 xor B1) F2 = A0B0(A1 + B1) + A1B1 What may this circuit be doing, I can't see a ...
0
votes
0answers
39 views

How does this 2 LED flasher circuit work? [duplicate]

I understand the capacitors hold the transistor open or close, but I don't really understand how it "toggles" to flash the LEDs.
0
votes
2answers
50 views

What is the error in my analysis?

So, I am to analyze this circuit. So, this seems easy enough: Node 3: \$v_3=20 \space \mathrm{v}\$ Node 2: ...
1
vote
1answer
64 views

Microcontroller circuit

I am using a Stellaris EK-LM4F120XL for a project. The project includes an LCD module, servo motor, ultrasonic ranger and a numpad. The LCD, servo and ranger are rated at 5V operating voltage, and the ...
0
votes
2answers
50 views

Low voltage cut out switching for a 6v input SLA to 5v output circuitry - or alternative ideas

I am currently modifying a wireless video door phone system with remote door release system, for use with a walking frame, for my elderly mother in-law, who lives alone. The 7"monitor runs a 5v 1a DC ...
0
votes
0answers
16 views

Can't find TEC between nodes 'a' and 'b' correctly

I'm currently learning Thevenin's Theorem and it seems that I can't solve the easiest problem in this chapter. How I tried to solve: (a) The node a being positive and node b negative, doing ...
1
vote
6answers
425 views

Need to build a circuit resembling fluid flow through porous media

I am trying to use electronics analogy to build a model that describes fluid flow in a porous media. For example I consider voltage, current and resistance to be equivalents of pressure, flow rate and ...
0
votes
2answers
33 views

Relay circuit for AC application

I am using relay circuit for inverter application. It's 12V relay having coil and two contacts for connecting line and neutral respectively. But, I am not getting closed connection when I am giving ...
1
vote
1answer
46 views

Analog PWM generator from 0%

I have to prepare easy analog PWM regulator which can operate from 0% (0V). I know that one 555 can't do that... Do you know any circuit that can handle that?
0
votes
3answers
91 views

How do I build a one shot non-retriggerable pulse generation circuit with 2 triggers?

I'm kind of a noob when it comes to electronics (I'm mainly a computer programmer), so please bear with me. I want to construct a one shot non-retriggerable pulse generation circuit that has two ...
0
votes
0answers
21 views

How can I stacke 4 controllers to get higher voltage? [duplicate]

I deal with solar charge controllers. Often I have a problem with not having controllers rated high enough voltage-wise. I know that charge controllers can be stacked. But can they all be stacked? ...
2
votes
1answer
42 views

Automatic cut off after switch is pressed

I have a fun one for you. Here is my diagram: It's a 555 timer in a monostable one shot configuration. What I want to do is find a way to prevent the LED from staying on if the switch is held down. ...
5
votes
1answer
278 views

Zener diode circuit

When I tried to find current flowing through 1.2k ohm resistor, I am finding 8.33 mA but there comes the problem: I am finding the current through the 1k ohm resistor is 6 mA. What am I doing wrong? ...
1
vote
1answer
178 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 ...
1
vote
1answer
44 views

Modify MEMORY component to more sensibly Load/Store value?

I have created the following electrical circuit using Logisim: My ALU takes in 2 8-bit values and performs the operation set forth by the [Op Setter]. In particular, when the [Op] code is [100], ...
2
votes
1answer
60 views

How to ON/OFF two fans with 3-state rocker switch?

I have a 3-state switch, It has 3 pins. It can have 3 state as you can see in the picture below. when it's off (i.e on O) the middle pin is not connected to ...
-2
votes
1answer
50 views

Simplified analysis of complex circuits [closed]

This is a question in very general sense. When we got to analyze very complex schematics, is there any way by which it can be made simpler. Like do we have any key steps to analyze it with.
1
vote
3answers
107 views

Need help with an LED flash circuit

I joined just because I'm having sort of a dilemma. I need to design a flash circuit for a tiny SMD based project, and I have a way of doing it, but I want to see if I can make it better and I haven't ...
0
votes
4answers
129 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 ...
0
votes
2answers
53 views

Are all solenoids waterproof?

I have an application where I need a solenoid to control a valve at the bottom of a tank. For unimportant reasons the valve needs to be inside the tank at the bottom. I was wondering are all ...
1
vote
1answer
39 views

Connect ALU to CPU in Logism Circuit Design and output to 7-segment Display?

I've been playing around in Logisim to get some experience in designing basic electrical circuits. While I'm sure not the best, I was able to put together a functional ALU: 1-Bit: This ALU is ...
0
votes
0answers
36 views

Possible to copy a circuit from 1 Logisim .circ file into another Logisim .circ file?

I'm using Logisim to experiment with Electrical Circuit design, and I was wondering if it is possible to copy a circuit created in 1 Logisim .circ file and place it into a different Logisim .circ file ...
2
votes
2answers
83 views

Circuit to throw out 1st bit of every 17-bit sequence?

I have a system that currently uses two Maxim DS1867 digital potentiometers in a daisy-chain configuration. In a new addition to the system I would like to use a new digital potentiometer part like ...
0
votes
1answer
63 views

Arduino Mega & LIN Transceiver (MPC2004)

I am trying to connect an Arduino Mega with another device using a LIN Transceiver. I have decided to use a LIN MPC2004 Transceiver for this. I am now trying to understand the reference design of ...