Questions tagged [bulk-capacitor]
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13 questions
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Significance of hold up time for PFC circuits
I know that the hold up time is the minimum time up until which the power will be not interrupted even if there is a power outage at the input side. Normally it is selected as one ac cycle for ac ...
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Role of output / bulk capacitor in boost PFC circuits - which ripple current do they filter out?
I have to design a PFC circuit which has an output power of 550 W with DC output of 400V. I have calculated the capacitance value as per my hold up and ripple voltage requirements but I am confused ...
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Input bulk cap of a flyback converter
Doing calculation for input bulk capacitor of a flyback converter. Have attached my calcultions.
Also used Ti calculator.
Why am I getting different values? What am I doing wrong? And how to do the ...
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KCL at bulk in CMOS
This is the circuit:
KCL at bulk:
$$V_{out} s C_{bd} + V_{in} s C_{gb} = - V_S s C_{bs} \tag{1}$$
Does this equation work in this case?
KCL at Gate.
$$(V_{in} - V_S) g_m - V_S g_{mb} + \frac{V_{out} - ...
- 1,127
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Is the bulk grounded in small AC signal analysis?
This the circuit. The bulk is connected to ground in DC.
Is the bulk grounded in small AC signal analysis (Vb = 0)?
How about for PMOS? When the bulk of PMOS is connected to VDD, is the bulk grounded ...
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3
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373
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Bulk capacitor sizing to protect H bridge during motional EMF
I'd like to drive a 30 V motor with this H bridge driver and an Arduino.
The problem is that on top of working in forward motoring and reverse motoring conditions, it will also work in forward braking ...
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Calculation of Total Required DC Link Bulk Capacitors in Motor Drive
Would anyone let me know whether the following formula is correct to estimate the total amount of DC link bulk capacitors for a 3-phase permanent magnet motor drive to handle the startup inrush ...
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Non-isolated DC/DC converter
I am integrating a non-isolated DC/DC converter from Mornsun in one of our designs.
We are trying to stick to the typical application schematic:
However, two questions dictated by the limited space ...
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Bulk capacitance near a processor affecting converter transient response
Here is my question: why do manufacturers of processors and FPGAs prescribe adding hundreds or thousands of microfarads of bulk capacitance next to their part?
The IGLOO2, for example, recommends a ...
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Bulk capacitance after 12 V battery input
I am working on a new project that will be mounted on my racing car. I have to make a power distribution module using e-fuse and high switch modules to control the various loads.
Exaggerating, they ...
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Voltage droop and bulk capacitor selection
I have a fundamental question regarding bulk capacitor selection for a pulsed power circuit. Assuming I am switching a 2 kohms resistive load using a 2 kV power supply at a switching frequency of 10 ...
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Bulk Capacitors
I'm looking at a design that is using 2x220uf bulk capacitors (while other 2 are placeholders).
these capacitors are used in Validation Platform for some CPU. I was wondering if I can replace these ...
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Unsure about bulk capacitor value and type for custom PCB
I'm designing a custom PCB (90x90mm approx) which is using an ESP32 module to drive 5 dual channel H-bridge ICs (DRV8835) which control 9 miniature brushed DC motors (1A stall.)
The datasheet of the ...
