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winny
winny
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I was trying to understand the CV/CC charging of the Batterybattery using a Buckbuck converter. I came across this website, where it described the addition of sensor resistors to measure current and get the reading in voltage using op amp and send it as feedback. https://www.ti.com/lit/an/snva829/snva829.pdf

I have a couple of questions regarding its implementation

  1. I have closed-loop DC to DC voltage regulator working, can I use voltage obtained from measuring current in the load as feedback and control the DC to DC converter  ?
  2. If I use current sensor feedback voltage, how does the buck converter will be controlled to keep constant current at the output with varying voltage in constant current mode?

I couldn't find good material explaining the control block diagram of the whole system, so didn't understand it. Could someone please help me with that?

I was trying to understand the CV/CC charging of the Battery using a Buck converter. I came across this website, where it described the addition of sensor resistors to measure current and get the reading in voltage using op amp and send it as feedback. https://www.ti.com/lit/an/snva829/snva829.pdf

I have a couple of questions regarding its implementation

  1. I have closed-loop DC to DC voltage regulator working, can I use voltage obtained from measuring current in the load as feedback and control the DC to DC converter  ?
  2. If I use current sensor feedback voltage, how does the buck converter will be controlled to keep constant current at the output with varying voltage in constant current mode?

I couldn't find good material explaining the control block diagram of the whole system, so didn't understand it. Could someone please help me with that?

I was trying to understand the CV/CC charging of the battery using a buck converter. I came across this website, where it described the addition of sensor resistors to measure current and get the reading in voltage using op amp and send it as feedback. https://www.ti.com/lit/an/snva829/snva829.pdf

I have a couple of questions regarding its implementation

  1. I have closed-loop DC to DC voltage regulator working, can I use voltage obtained from measuring current in the load as feedback and control the DC to DC converter?
  2. If I use current sensor feedback voltage, how does the buck converter will be controlled to keep constant current at the output with varying voltage in constant current mode?

I couldn't find good material explaining the control block diagram of the whole system, so didn't understand it. Could someone please help me with that?

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Ethan
Ethan
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CC/CV mode of Buck Converter used for Battery Charging

I was trying to understand the CV/CC charging of the Battery using a Buck converter. I came across this website, where it described the addition of sensor resistors to measure current and get the reading in voltage using op amp and send it as feedback. https://www.ti.com/lit/an/snva829/snva829.pdf

I have a couple of questions regarding its implementation

  1. I have closed-loop DC to DC voltage regulator working, can I use voltage obtained from measuring current in the load as feedback and control the DC to DC converter ?
  2. If I use current sensor feedback voltage, how does the buck converter will be controlled to keep constant current at the output with varying voltage in constant current mode?

I couldn't find good material explaining the control block diagram of the whole system, so didn't understand it. Could someone please help me with that?