Hi support team,
attached pictures is schematic and output waveform in different loads. pls suggestions for improvement. thanks.
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Hi support team,
attached pictures is schematic and output waveform in different loads. pls suggestions for improvement. thanks.
Thank you Shawn. test conditions: 1: 13.5V1.3A IN, load 0.7A. 2:1: 13.5V1.3A IN, load 1A. 3:1: 13.5V1.3A IN, load 1.3A
Thank you Shawn, i changed input capacitor 1000uF to 4400uF,The ripple of the output voltage is decreased remarkably. Attached are test input ripple Vpp (blue channel 3), SW voltage test (green channel 2), output ripple (yellow channel 1). 1: Input 2A, Load 1.8A , capacitor 4400uF. 2 :Input 2A, Load 1.3A , capacitor 4400uF. 3 :Input 2A, Load 1.8A , capacitor 1000uF. 4 :Input 2A, Load 0.7A , capacitor 1000uF