Hi.
I am working on a project and have had an idea to improve it. There are 2 parts to this improvement.
First I would like to replace the battery in the device for a super capacitor. I have seen 10F , 2.7v capacitors available.
The device itself runs on around 2-5uA when asleep. When awake draw is aroun 15-30mA. The device is awake for 1 second every 15 minutes.
My question is how much power can the capacitor hold and how long could it power my device?
The second part i would like to have a go at is charging the device by wireless energy transfer.
I am wondering if it is possible to transfer enough energy to keep the capacitor charged so power is available when required.
The transmitter for the wireless power transfer will be around 3-4 meters from the device to be powered.
Thanks
I am working on a project and have had an idea to improve it. There are 2 parts to this improvement.
First I would like to replace the battery in the device for a super capacitor. I have seen 10F , 2.7v capacitors available.
The device itself runs on around 2-5uA when asleep. When awake draw is aroun 15-30mA. The device is awake for 1 second every 15 minutes.
My question is how much power can the capacitor hold and how long could it power my device?
The second part i would like to have a go at is charging the device by wireless energy transfer.
I am wondering if it is possible to transfer enough energy to keep the capacitor charged so power is available when required.
The transmitter for the wireless power transfer will be around 3-4 meters from the device to be powered.
Thanks