JP6869411B1 - 吸引器用コントローラ - Google Patents
吸引器用コントローラ Download PDFInfo
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Abstract
Description
RHTR=VHTR/IHTR=VHTR・(RHTR+Rs)/(V2−Vf)
・・・式(1)
式(1)を変形すると、抵抗値RHTRを与える式(2)が得られる。
RHTR=Rs・VHTR/(V2−Vf−VHTR) ・・・式(2)
検出部の増幅器13の出力電圧VAMPは、増幅器13が増幅率Aを有する場合、式(3)で与えられる。
VAMP=A・VHTR ・・・式(3)
式(3)を変形すると、ヒータHTの電圧VHTRを与える式(4)が得られる。
VHTR=VAMP/A ・・・式(4)
よって、式(2)および式(4)に従って、ヒータHTの抵抗値RHTRを得ることができる。なお、スイッチQ2は、ヒータHTの抵抗値RHTRを検出するための増幅器13の出力電圧VAMPが得られた後にオフされる。
THTR=Tref+(1/α)・(RHTR−Rref)・(1/Rref)・106
・・・式(5)
IQ1=V1/RHTR ・・・式(6)
IQ2=(V2−Vf)/(Rs+RHTR) ・・・式(7)
Claims (13)
- エアロゾル源の霧化要求を検知するセンサと、
前記センサで検知された前記霧化要求に応じて、前記エアロゾル源を加熱するためのヒータの通電制御を行うプロセッサと、
を備え、
前記プロセッサは、前記通電制御の第1制約条件、第2制約条件および第3制約条件にそれぞれ該当するか否かを判断し、前記第1制約条件、前記第2制約条件および前記第3制約条件の少なくとも1つに該当する場合、前記センサで前記霧化要求が検知されていても前記ヒータへの通電を制限し、
前記第1制約条件、前記第2制約条件および前記第3制約条件の何れかは、前記ヒータを流れる電流値に関する制約条件である、ことを特徴とする吸引器用コントローラ。 - 前記第1制約条件、前記第2制約条件および前記第3制約条件では、前記ヒータへの通電を制限するか否かを判断するための監視対象が互いに異なる、ことを特徴とする請求項1に記載の吸引器用コントローラ。
- 前記プロセッサは、前記センサで前記霧化要求が継続的に検知されている要求継続時間を監視し、
前記第1制約条件、前記第2制約条件および前記第3制約条件の何れかは、前記要求継続時間に関する制約条件である、ことを特徴とする請求項1又は2に記載の吸引器用コントローラ。 - 前記プロセッサは、前記ヒータを流れる電流を監視する、ことを特徴とする請求項1乃至3のいずれか1項に記載の吸引器用コントローラ。
- 前記吸引器用コントローラは、前記ヒータへの電力供給ライン上に設けられた第1抵抗を更に備え、
前記プロセッサは、前記第1抵抗の電圧に基づいて前記ヒータの電流を監視する、ことを特徴とする請求項4に記載の吸引器用コントローラ。 - 前記ヒータを流れる電流値に関する制約条件は、第1時間以上の時間において第1電流値を超える電流が前記ヒータを流れているとの制約条件、および、第2時間以上の時間において第2電流値を超える電流が前記ヒータを流れているとの制約条件を含み、
前記第1時間は前記第2時間より短い時間に設定され、前記第1電流値は前記第2電流値より大きい電流値に設定されている、ことを特徴とする請求項1乃至5のいずれか1項に記載の吸引器用コントローラ。 - 前記プロセッサは、前記ヒータの温度を監視し、
前記第1制約条件、前記第2制約条件および前記第3制約条件の何れかは、前記ヒータの温度に関する制約条件である、ことを特徴とする請求項1乃至6のいずれか1項に記載の吸引器用コントローラ。 - 前記吸引器用コントローラは、前記ヒータに生じる電圧を増幅して出力する増幅器を更に備え、
前記プロセッサは、前記増幅器の出力電圧に基づいて、前記ヒータの温度を監視する、ことを特徴とする請求項7に記載の吸引器用コントローラ。 - 前記吸引器用コントローラは、電源と、前記電源の出力電圧をヒータ駆動電圧に変換して前記ヒータ駆動電圧を前記ヒータへの電力供給ラインに出力する電圧変換器を更に備え、
前記プロセッサは、前記電圧変換器における前記ヒータ駆動電圧の出力を禁止することにより前記ヒータの通電を制限する、ことを特徴とする請求項1乃至8のいずれか1項に記載の吸引器用コントローラ。 - 前記吸引器用コントローラは、前記ヒータへの電力供給ラインを開閉するためのスイッチを前記電力供給ライン上に更に備え、
前記プロセッサは、前記スイッチで前記電力供給ラインを閉じることを禁止することにより前記ヒータへの通電を制御する、ことを特徴とする請求項1乃至9のいずれか1項に記載の吸引器用コントローラ。 - 前記吸引器用コントローラは、前記ヒータへの電力供給ライン上に設けられた第2抵抗と、前記第2抵抗の電圧に応じて前記ヒータの通電を停止する保護回路と、を更に備え、
前記保護回路は、前記プロセッサの制御に拠らずに動作する、ことを特徴とする請求項1乃至10のいずれか1項に記載の吸引器用コントローラ。 - 前記吸引器用コントローラは、前記電力供給ラインを開閉するためのスイッチ回路を更に備え、
前記保護回路は、前記第2抵抗の電圧に応じて前記スイッチ回路で前記電力供給ラインを開くことにより前記ヒータの通電を停止する、ことを特徴とする請求項11に記載の吸引器用コントローラ。 - 前記第1制約条件、前記第2制約条件および前記第3制約条件の何れかは、前記センサで前記霧化要求が継続的に検知されている要求継続時間が第1閾値以上であるとの制約条件を含み、
前記ヒータを流れる電流値に関する制約条件は、前記ヒータの通電時間が第2閾値以上であるとの制約条件を含み、
前記第2閾値は、前記第1閾値より長い時間に設定されている、ことを特徴とする請求項1乃至12のいずれか1項に記載の吸引器用コントローラ。
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EP24174811.0A EP4391718A3 (en) | 2020-09-07 | 2021-08-26 | Controller for inhalation device |
US17/464,687 US20220071297A1 (en) | 2020-09-07 | 2021-09-02 | Controller for inhalation device |
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