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1 vote
1 answer
188 views

LTC7803 Buck Converter Current Mode Compensation

I wanted to design a step-down converter using the LTC7803. Goal is to have a 5V, 0-2A output with an input voltage range of 10-30V. Switching frequency is set at 1MHz. As shown in the LTSpice picture ...
Gman's user avatar
  • 101
1 vote
0 answers
155 views

Battery charger circuit confusion - drive and compensation

I'm building something that is going to have Li-Ion batteries so I'm trying to learn how a battery charger actually works. I've been looking over the datasheets for the BQ2000 and the BQ2954. I will ...
pbandjazz's user avatar
  • 349
4 votes
1 answer
159 views

Output voltage not stable - What is compensation with respect to DC-DC (buck converter)?

EDITS: Input voltage range: 24V to 48V. Changing the load current from 0.38A to 1.018A increases the mean output voltage from 12.779V to 13.26V. The supply should be producing 12.5V. I'm using this ...
user avatar
0 votes
2 answers
335 views

Tricking feedback of a buck converter

I need to trick the buck converter feedback. The converter that I am going to use is TPS40192DRCT. Instead of the regular resistor divider, I want to feed there voltage proportional to current ...
TQQQ's user avatar
  • 1,395
0 votes
0 answers
621 views

Using UC3844 and TL431 to compensate a forward converter

I am designing a forward converter capable of providing 5A at 30V at the output. For the compensation part, I am thinking to use UC3844 in combination with TL431 to achieve peak current mode control. ...
tinkerer's user avatar
  • 180
0 votes
1 answer
107 views

Feedback loop design (buck converter): Output capacitance- effective value or nominal value to be considered?

In this TI datasheet of TPS62180, it was mentioned that the LC filter combination should be selected from a set of predefined values. I understand this is usually the case for an internally ...
Dynamic_equilibrium's user avatar
2 votes
1 answer
2k views

Loop compensation of a Buck Converter

I have a buck converter. TPS54260 Vin = 7V-20V Vout = 5V Iload=600mA. I realise that there is a similar question in this forum but I was not able to get clarity. I want to understand what do you ...
user avatar
6 votes
1 answer
1k views

Loop compensation design of buck converter

I am trying to design loop compensation with type-3 error amplifier for a buck converter. I'm a student and very inexperienced in this subject. Please bear with me. Here is the general procedure ...
JGalt's user avatar
  • 897