All Questions
Tagged with dc-dc-converter circuit-analysis
49
questions
2
votes
0
answers
25
views
designing power supply using LNK306DG [closed]
I am designing a converter circuit using LNK306DG and I have done this earlier. Now I have to swap the phase and neutral pins of the circuit, and what should be the changes I have to make in this ...
0
votes
0
answers
60
views
Welding machine schematic: PWM controller connections
I don't understand why the VFB pin of the UC3845AD PWM controller is grounded, and why the compensator pin is connected to the output of the LM224 through VD1 and VD2.
1
vote
1
answer
42
views
Will this circuit work for wiring a 3.8v screen into my car's power? [closed]
I'm trying to wire a 3.8V screen, 3.8V battery, and my car's 5V power source together and ensure that the device will be powered by the 5V power source when it's available and that the battery is ...
- 11
1
vote
1
answer
154
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Unstability of DC chopper control through PI current controller
We usually use a DC chopper to control a DC motor. For simulation purpose I have built the following circuit in which I have tried to control the armature current of a DC motor using a DC chopper, a ...
- 1,020
0
votes
1
answer
68
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Equivalent Circuit of CM EMI filter [duplicate]
Actually, someone already asked this question before.
But I have another question here.
This is the diagram of an EMI filter in both CM and DM filters:
This is the equivalent circuit of the CM filter:...
0
votes
0
answers
246
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Armature current control of DC motor
In DC motor speed control, we usually build an inner current loop that serves to control the armature current so the speed/torque of the motor.
Let's assume that we want to control the speed of a DC ...
- 1,020
0
votes
1
answer
66
views
How to find the minimum voltage Dᵣ must be able to support?
Is voltage Vin the same experienced at DZ1? I'm trying to work out the minimum voltage at Dr and the equation says it's n multiplied by the DZ1 voltage. This is a dual-switch forward converter.
- 19
0
votes
1
answer
41
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XL4016e1 maximum input current
I have an XL4016e1 dc-dc converter circuit,
the output of the circuit is 12V 6 A .
What should be the current value of the power supply to obtain this current?
thanks
0
votes
0
answers
78
views
Steady-state analysis of a multiple-input DC-DC converter
I am trying to perform a steady-state analysis of the dual input configuration of the multi-input converter, taken from this paper and shown below:
The authors state: "The proposed multi-input ...
- 1
1
vote
2
answers
230
views
Oscillations at primary side switching node of half-bridge converter
I am designing a 84 W battery charger half-bridge converter from an AC source of 220 - 240 VAC. I am using an SG3525A for the design. From a simulation I did in LTspice, there are some oscillations at ...
- 103
10
votes
3
answers
1k
views
Why is the flying capacitor voltage half of the input voltage in a 3-level buck converter?
This and this discuss about the 3-level DC-to-DC converter.
All of these are saying that the flying capacitor voltage is 1/2 VIN. However, I couldn't find any more explanation on this. Probably it's ...
- 1,649
2
votes
1
answer
223
views
Why is it easier to make a boost converter stable by feeding back a very small amount of output?
The image below is about peak current mode control for a boost converter. Someone said that it's easier to make it stable by feedback a very small of output like 1/10 Vout (or R2 << R1). ...
- 698
1
vote
0
answers
730
views
TL494 with synchronized output rectifiers for push-pull converter
I want to build a push-pull converter with synchronized output MOSFETs using a TL494 IC which has two outputs that can directly drive only two transistors.
The output of the push-pull converter is 12 ...
- 103
1
vote
1
answer
143
views
DC-DC Converter MCP16331 doesn't work (at all?)
I am trying to implement the DC-DC buck converter MCP16331 to my design.
The circuit is powered by a 24 VDC power supply (DAUER+).
The MCP16331s job is to regulate the 5 V needed to power µC, ADC, ...
- 19
0
votes
1
answer
148
views
Supplying an input to a power supply from two batteries without connecting them in parallel
I want to power a buck converter with two 84V batteries without having them connected in parallel.
At the output of the buck converter is a relay circuit that switches between the two batteries to ...
- 103