# Questions tagged [resistive]

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### Equivalence in circuits

I'm studying circuit theory, with only linear elements and no capacitors or inductors or mutual inductances, so no differential equations. All the sources (current and voltages) are constant. To be ...
• 115
1 vote
59 views

### Possible Explanations for Unexpected Results: Negative Resistance and Consistent Short-Circuit Current and Open-Circuit Voltage

My objective in this circuit is to find the value of RL that achieves maximum power transfer. simulate this circuit – Schematic created using CircuitLab To do this, find Voc and Isc, as shown ...
• 207
97 views

### Triac get burnt after driving 2 min 1.5kW resistive load

I am trying to drive a 1.5kW heating resistance using QJ6025LH5TP triac. Schematic and PCB layout. So the thing is that my circuit is working for a while and I trying to measure the temperature from ...
82 views

### Implement a voltage feedback method to reduce the crosstalkin resistive matrix

I'm new in electronics and i want to develop a resistive matrix that is pressure sensitive. Right now, I have a 7x7 matrix and I'm implementing this using multiplexers, a reference resistor and an ...
58 views

### Driving an array of resistive loads on high side with as little parts as possible

I'm trying to switch an array of resistive loads at 12V as fast as possible using least amount of parts due to limited board space. I have tried to find sourcing darlington transistor pairs but they ...
2k views

### Hot Glue Gun NTC Heating Element?

I decided to take apart a cheap hot glue gun to see how easy it would be to replace the heating element to power it from battery instead of mains. I found the crystal heating element sandwiched ...
• 63
576 views

### Impedance of the circuit between given points

I am trying to learn one and two port networks and the book introduced Determinants and minors to calculate the impedance of the circuit. Kindly see the following question: I have managed to do the ...
• 11
274 views

### Find admittance( G ) matrix of a resistive circuit

I am taking Signals And Systems class where I have to calculate the admittance parameter of a given circuit. A given circuit for example: This is tedious and calculating the parameters takes so long....
• 455
401 views

### Understanding CMOS Circuit Behaviour with Resistive Loads using Thevenin theorem

I have been reading the Digital Design: Principles and Practices 3rd Edition as a hobby. Unfortunately, I am stuck at page 103 of Section 3.5.2: Circuit Behavior with Resistive Loads. In Figure 3-27: ...
• 101
1k views

### Boost converter for High Output voltage and High Output current

I want to design a variable power supply. I need to get output voltage from 7.5 to 30 V and output current of 0-40 A. One of the above values will be fixed while the other changes. This is for ...
52 views

### Connecting the FSR sensor with the plunger rod as to transfer the full force

I am using FSR sensor for force measurement, I am using rod plunger to transfer force to the other side of the rod which is connected to the FSR sensor. The force is not going to the active area of ...
• 403
1 vote
2k views

### How to design a 3-phase resistive load bank?

We are trying to design a 3-phase resitive load bank to test some step up transformers. We are receiving 3-phase 208v and stepping up to 3-phase 600V with 3-step up transformers wired in delta. Its a ...
• 55
59 views

### How to control the current/voltage in resistive wires [closed]

I'm new to electronics, and I was planning to make a heater to heat up a stainless steel container, and I was wondering if there was a way to control the temperature by controlling the current or ...
1 vote
113 views

### Question to "Start-up into resistive load" diagram of LTC3106

There is a diagram on page 7 of the LTC3106 (Datasheet) named "Start-up into resistive load" and i couldn't find any explanation on the internet how to understand it. My assumption is: This diagram ...
• 310
4k views

### TRIAC AC dimmer circuitfor resistive loads and dependency on LOAD resistance

First I have to say I am a not an expert at LTSpice and analog electronics. I need to drive a 115V 700W (around 19 ohms) heater with a 220V mains so due to the pure resistive load I thought to use a ...
• 103
1 vote
1k views

### Resistive and inductive load on same transformer?

Is it ok/safe to put both a resistive load (heating elements) and inductive loads (servo motor) on the same leg of a 240VAC transformer? I have some electrical knowledge but it has been a while since ...
• 163
153 views

### Sign on range hood light switch says "incandescent or resistive 120V AC Only"; does this mean no CFL or LED?

The switch includes a standard-looking rheostat; I have read the issues around using dimmer switches with conventional CFSs. I don't value the "dimmer" function on the hood -- just want to see the ...
1 vote
402 views

### How will my power/current draw change if I switch from 120 VAC to 12VDC?

I'm designing a heater to run off of a 12V battery at a field weather station. As I have no formal electrical training, I'm having a challenge coming up with an effective power budget. Note: This is ...
39 views

### Taking second input from resistive sesnors

I am designing a device to track the diagnostic of a vehicle. A Vehicle has many sensors working @ 12V or 24V. As per the scenario, Lets consider a 24V sensor which I need to read. The sensor is a ...
• 591
1k views

### Cutting Touchscreen

For a small hobby project I would like to use a resistive touch overlay. However, sourcing the correct size seems near impossible. Can I cut a resistive (4-wire) touch screen to fit?
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### How to solve this resistive network using divider rules and ohms law

I have a homework problem I've been trying to solve. So far I think I'm using the right formulas for the calculations. I just need help finding: The total resistance of the circuit, finding Vab ...
• 237
300 views

### How to drive a sensitive, constant-current, 1MHz resistive device?

I am currently working with sensors which are mostly resistive (100 to 600 ohms on average) and need to be fed with a controllable bidirectional constant current (from -1mA to +1mA with a resolution ...
• 31
5k views

### Thevenin equivalent resistance of circuit with diagonal resistors

I'm trying to find the Thevenin equivalent for part A of this circuit: I begin by opening the circuit at the dotted line of part A. Then I try to find $V_{oc}$ across the two terminals that are ...
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