kudjung
Member level 4
Hi All,
We have a controller that can be configured as either Host and Device in software, not an OTG, but it can configure either way in software.
We want to implement the feature on our usb port so that i can be configured as either Host or Device.
The problem is on the different Vbus cap requirement for Host and Device.
Host require more than 120 UF but Device require less than 10 UF.
Any one can suggest a circuit that I can switch appropriate capacitor in and out of the USB VBUS. Note that it's to be pretty low impedance and has necessary protection since this is a usb port.
Thanks in advance.
KJ.
We have a controller that can be configured as either Host and Device in software, not an OTG, but it can configure either way in software.
We want to implement the feature on our usb port so that i can be configured as either Host or Device.
The problem is on the different Vbus cap requirement for Host and Device.
Host require more than 120 UF but Device require less than 10 UF.
Any one can suggest a circuit that I can switch appropriate capacitor in and out of the USB VBUS. Note that it's to be pretty low impedance and has necessary protection since this is a usb port.
Thanks in advance.
KJ.