All Questions
60
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1
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98
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Peltier cooler driving circuit
To prevent closing as duplicate immediately, there is the list of the most relevant questions:
How to drive a Peltier element?
Driving a Peltier w/ PWM or analog out
Driving a Peltier element with ...
- 103
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0
answers
28
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Using a coupled inductor in a multi phase buck converter - how to set the inductor dot notation and converter PWM for best ripple reduction
Based on these Charles Sullivan papers, we can use a coupled inductor in a multi phase converter to reduce inductor ripple current.
https://www.princeton.edu/~minjie/files/sullivan-CICC-2021.pdf
http:/...
2
votes
1
answer
136
views
Why won't my voltage feedback system work?
Vin is a constant DC source. This circuit will take a random DC input between 12.6V and 48V, and then maintain a constant output voltage of 5V using a system of voltage feedback.
with the source code,...
- 288
0
votes
1
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123
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Why doesn't my buck converter work properly?
Such is my circuit:
Vin is a constant DC source. This circuit will take a random DC input between 12.6V and 48V, and then maintain a constant output voltage of 5V.
At the left bottom corner, there is ...
- 288
0
votes
2
answers
150
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Voltage not varying with duty cycle
I want to make a circuit that changes voltages with the duty cycle as well as doubles that for me. I therefore made a voltage doubler circuit along with alternating PWM wave. But as I changed the duty ...
- 669
1
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0
answers
45
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Noisy signal output from BD2320 MOSFET driver
I need help or technical solutions relating to this issue I encountered with BD2320.
I intend to use two BD2320 drivers for an interleaved buck converter. One of the channels works well, but after ...
- 11
1
vote
1
answer
142
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Buck converter PWM generation issue
I am trying to design a buck converter without using a controller IC. Input 32-52V output 12V, 50W.
I don't know how to get the desired duty cycle from the stable 2.5V error feedback. While it is ...
- 77
2
votes
1
answer
148
views
Is it possible to include a behavioural source in an LTspice sub-circuit for use in a buck converter model?
I'm in the process of modelling a buck converter following the approach in Sam Ben-Yaakov's A unified SPICE compatible average model of PWM converters article in which he models a switched inductor ...
- 137
0
votes
1
answer
965
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UC3843 PWM controller not generating PWM output
I have designed a BUCK converter circuit using UC3843. Here is the
DATASHEET
.
You can find the circuit diagram above. I want to limit the current to 10A and accordingly I have designed the external ...
1
vote
1
answer
215
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BLDC Motor ESC/Controller Analog Receiver PWM/Wiring - Won't detect with potentiometer
I have an RC/drone ESC that takes a PWM input signal at 3.3 V/5 V for throttle control, but has no onboard buck/BEC. I have the illustration below for my current setup.
This motor works excellent with ...
- 59
-2
votes
2
answers
1k
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Average voltage in PWM?
I have a doubt regarding average PWM voltage. Let's take a buck convertor with Vin=10V, Vout=5V. With this we can determine the duty cycle of PWM needs to be 50%. Thus means the MOSFET of the buck is ...
- 543
1
vote
1
answer
44
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Range of transformer Q variation for UC3844B converter?
Here the UC3844B High Performance Current Mode Controller (at left, SO-8) is used with a custom transformer to step down bus voltage to 24V. The transformer is likely rated for about 40W, so ...
- 16.3k
1
vote
2
answers
309
views
DC-DC buck converter duty cycle issue [closed]
I want to make DC-DC buck converter with a PWM controller, gate driver, and MOSFET switch. But I can't find the PWM controller that matches my requirements: input voltage 40 V, output voltage 24 V ...
- 63
2
votes
2
answers
938
views
Step down converter with low side MOSFET
I'm trying to gain confidence with electronic as I'm quite new to this world. To get started I began to study a buck converter which I'm simulating with LTspice.
The problem is that the design that I ...
- 23
1
vote
0
answers
51
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How does the COMP/EN pin of the MAX1967/MAX1966 work?
I know this question may seem simple to more experienced people but I struggle to understand how the COMP/EN pin works on this particular IC.
I want to use it for a buck converter that has external ...
