Hi everyone
I have to build an interleaved buck converter. Although common practice is to apply interleaving in low voltage high current VRM applications, i am expected to build a converter with output 30-40V 20-30 A, i.e near kW ratings.
Control chips that support interleaved channels are rare, and the ones i found are: tps40090 from TI and some similar IC's from Linear Tech. and International Rect. However, these controllers are designed for low voltage high current applications specially for synchronous buck structure.
Here are my questions:
1 How come a controller dictates circuit output voltage and power? Its main duty is to amplify the error signal,compare it to a ramp and produce duty cycle. Copy/paste from tps40090 datasheet: "The TPS40090/91 controllers are designed to operate in power supplies with output voltages ranging from 0.7 V to 3.3 V"
2 Does anybody know a controller IC for a buck converter with output specs given?
Thank you
I have to build an interleaved buck converter. Although common practice is to apply interleaving in low voltage high current VRM applications, i am expected to build a converter with output 30-40V 20-30 A, i.e near kW ratings.
Control chips that support interleaved channels are rare, and the ones i found are: tps40090 from TI and some similar IC's from Linear Tech. and International Rect. However, these controllers are designed for low voltage high current applications specially for synchronous buck structure.
Here are my questions:
1 How come a controller dictates circuit output voltage and power? Its main duty is to amplify the error signal,compare it to a ramp and produce duty cycle. Copy/paste from tps40090 datasheet: "The TPS40090/91 controllers are designed to operate in power supplies with output voltages ranging from 0.7 V to 3.3 V"
2 Does anybody know a controller IC for a buck converter with output specs given?
Thank you