Power Supply Unit For Aerosol Inhaler
Patent No. EP3683917 (titled "Power Supply Unit For Aerosol Inhaler") was filed by Japan Tobacco on Jan 16, 2020. The application was issued on Aug 10, 2022.
Patent Summary
Power supply unit for an aerosol inhaler that reduces the area on the circuit board occupied by capacitors while protecting the control devices. The power supply has separate capacitors connected in parallel with the first and second control devices. The capacitor on the input side of the first control device has a lower capacity compared to the capacitor on the input side of the second control device. This allows reducing the capacitance of the first capacitor since it doesn't need to eliminate as much ripple as the second capacitor. This reduces the board space required for capacitors. The lower capacitance first capacitor has a higher cutoff frequency but the larger resistance component offsets that to maintain noise removal performance.
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Date
Description
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EP3683917
- Application Number
- EP20152145A
- Filing Date
- Jan 16, 2020
- Status
- Granted And Under Opposition
- Jul 8, 2022
- Publication Date
- Aug 10, 2022
- External Links
- Slate, Register , Google Patents