Power controller and method of operating an electrical smoking system
US6040560A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Oct 16, 1997 |
| Grant date | Mar 21, 2000 |
| Priority date | — |
| Expiry date | Oct 16, 2017 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M11/041
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A novel controller in an electrical smoking system and method, wherein the method includes the steps of: establishing a preferred thermal pathway to be executed with each heater activation responsively to a puff on an electrically heated cigarette; configuring a power cycle in accordance with the desired thermal pathway; dividing the power cycle into at least first and second phases each having a respective, predetermined time period and total energy input for each phase; and adjusting a respective duty cycle (or other power-adjusting factor) in each phase of the power cycle responsively to a voltage reading of the power source such that the established, respective total energy input of each phase is achieved during the time period of each power cycle.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.