All Questions
14
questions
0
votes
3
answers
115
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Validate my 3V3 power system
My Power System, can someone validate it? I'm not familiar with using the TPS63060.
Datasheet can be found at: https://www.ti.com/product/TPS63060
I'm trying to power a ATMega328p-AU + 4 digit 7-...
1
vote
1
answer
187
views
Can I connect buck boost converters back to back?
I need to power a Bluetooth speaker (Beatbox Portable) with a battery pack while also allowing DC power in.
I also want to use the input DC power to charge the four cell lithoum ion battery pack.
Can ...
- 11
0
votes
1
answer
167
views
What extra components are necessary to bypass a boost converter when the input voltage exceeds its regulated output voltage?
I've made a USB-C power supply that's powered by a wind turbine. It contains a boost converter and a separate buck converter.
I'm aware that there are several buck/boost USB-C power supplies out there,...
- 313
0
votes
2
answers
2k
views
How does a boost converter allow for a gain in output voltage by just switching the positions of the inductor and switch?
I get that in a buck converter, a low pass LC circuit was attached and this effectively filters out high frequencies. If the bandwidth is configured so that it is lower than the switching frequency, a ...
- 469
1
vote
2
answers
419
views
Drop input voltage for a boost converter
I have a 21V DC solar panel power source, that feeds a DC-DC boost converter. I set the output voltage of the boost converter to 19.5V to charge my laptop, but since the input voltage is higher than ...
- 111
1
vote
1
answer
193
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I can't get the desired output voltage
This is a simulation of a buck boost converter. I want to get -12V as the
output voltage , but I get -1.148V.
I checked the PWM and the duty cycle and it is right.
I think that my problem in ...
2
votes
2
answers
129
views
In a buck boost inverting converter is there any difference exchanging the position of the diode from the positive to the negative rail?
In a buck boost inverting converter is there any difference exchanging the position of the diode from the positive to the negative rail keeping the same current rotational direction ?
- 152
4
votes
2
answers
167
views
Buck, Boost..etc Is there always an IC for that?
First of all I am still in school so perhaps I have not been exposed to material that may answer this question for me.
I have recently become interested in power electronics. I have purchased a book ...
- 891
0
votes
1
answer
664
views
Inductor and Capacitor for Bidirectional DC-DC Converter with Battery
I have to design a bidirectional converter to regulate a DC bus at 250 V with a battery bank at 144 V. My question is how to do it optimally, because I do not know the maximum ripple allowed in the ...
- 157
6
votes
2
answers
5k
views
Behavior of Boost and Buck Converters
I have a couple questions about boost and buck converters.
First, do they try to hold the output voltage constant, or do they alter the input voltage by a constant factor? For example, if I change ...
- 436
3
votes
4
answers
726
views
Is it possible for buck boost converter to output -48V with +12V input?
I have a school task for creating a Buck Boost converter that takes 12V and outputs -48V. I have done some digging and couldn't ...
2
votes
2
answers
3k
views
Inverting (Buck-boost) converter polarity problem
I have trouble understanding something in the circuit below. It is inverting converter, seems quite easy, but the part I don't get is when the switch is OFF we have forward-biased diode, i.e. plus on ...
- 1,216
1
vote
3
answers
2k
views
Is this a bidirectional buck/boost converter
I found this interesting IC on Linear Technologies site, but I don't understand if it, or its development board, can both boost input voltage to output and buck output voltage back to input.
http://...
- 870
1
vote
1
answer
574
views
high voltage Buck-Boost converter
I am looking for a Buck-Boost converter design that can take an input of 85 or 90 vrms to 265 Vrms. I would like the output to be in the range of 112-115V (DC) and current at least 150mA (dc). The ...
- 21