Questions tagged [capacitor-charging]
The capacitor-charging tag has no usage guidance.
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Transient analysis of RC DC circuit
The task is to find the current that flows through capacitor C. I tried to analyse the circuit using mesh analysis but failed. I need to find the current through C during switching (t=0) and steady-...
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Wide input voltage capacitor charging control
I'm working on a project in which we are using a bank of inexpensive 100 μF caps (up to 20 of them) to keep a microcontroller powered up long enough to do housekeeping for shutdown when the main power ...
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Charging a capacitor through a diode
I am a student who is trying understand some things.
I read in a book that a capacitor can charge up to battery voltage when connecting in series with a resistor and battery like this:
Can it charge ...
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Can someone explain the purpose of this transistor?
I have a schematic for a THT design. All diodes are rated for 1A (1N4004). The resistors are 1/4W and the transistor is a BD679 NPN darlington transistor (I am aware that I used a wrong symbol).
This ...
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Find suitable charging voltage for capacitor based on energy and time required for discharging
We need to calculate the charging voltage required to dissipate a certain amount of energy via R-Load.
The problem will be as follows:
If we need to dissipate 400 J through the R-Load in a time period ...
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Spice convergence troubles on this soft-start relay circuit simulation
I'm experimenting with a soft-start relay simulation. The relay is triggered when the capacitor bank C2 is charged a certain amount shorting R4. I then simulate loading V_out with a sequence of ...
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10 - 230 V DC voltage detector using STM32
I am working on a stud welder device capable of weld M3 ~ M8 bolts and the principle is to charge the caps in the range of 10 - 230 V DC, So we have a 220 to 160 V AC step down transformer and after ...
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Using an analog switch to charge/discharge a series of capacitors
My circuit requirement is very low power consumption to allow/disallow voltage (V1 which is variable 0-5 V) to go through some capacitors (cap1 and cap2) by controlling analog switches (DG2535EDQ) ...
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LTspice capacitor bug?
I know that capacitor slows the rise of voltage, but why is this not happening in the LTspice simulation?
I got the input voltage at the output instantly.
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How to spec a power supply for capacitor charging given the simulation and large requirements?
I am using the LT3751 as a capacitor charger for a large capacitor (30mF) and am trying to get an idea of the kind of power supply I would require in order to come close to the simulation charge time. ...
user298907
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RC differentiator behavior
I'm reading AoE, there is a figure (p.26) for RC differentiator output and input voltages for step 5V input voltage with different slew rates (\$dV_{in}/dt\$). (It's time domain part. Only the rising ...
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Subtleties with LTSpice's Arbitrary Sources
Here's my setup:
I'm trying to emulate the circuit to the right with the one on the left. That is, the one on the right is a pre-charged capacitor (node3) being discharged to its capacitor pair via a ...
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Series capacitor not blocking DC voltage
In my understanding a series capacitor (with some resistance) works as a DC block, essentially forming a high-pass filter, blocking DC. Under this assumption, a unipolar square wave of amplitude V ...
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Charging supercapacitors with reversed polarity
I bought six supercapacitors and connected them in series to get a total voltage of 16.2 VDC.
The product's Mouser No is: 723-BCAP0450P270S18, Mfr. No is: BCAP0450 P270 S18, the datasheet can be found ...
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How to avoid battery spark when connecting it to a DC-DC-converter [duplicate]
I'm connecting a 40 V battery to a DC-DC converter that can step down a voltage from 40 V to 8 V. When I connect the terminals the battery gives off a spark. I've browsed some sites which say that ...
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