Blood pressure meter and pump driving system

In the present invention, a pump driving circuit includes a step-up unit that steps up a first DC voltage from a power supply and outputs it as a second DC voltage, and an H bridge unit that has first and second series circuits that each include two switching elements connected in series between a h...

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Bibliographische Detailangaben
Hauptverfasser:	Okaguchi Kenjiro, Ariga Hiroyasu, Tabata Toshinari, Kamitani Gaku
Format:	Patent
Sprache:	eng
Schlagworte:	BLASTING DIAGNOSIS HEATING HUMAN NECESSITIES HYGIENE IDENTIFICATION LIGHTING MECHANICAL ENGINEERING MEDICAL OR VETERINARY SCIENCE POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS PUMPS FOR LIQUIDS OR ELASTIC FLUIDS SURGERY WEAPONS
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Beschreibung
Zusammenfassung:	In the present invention, a pump driving circuit includes a step-up unit that steps up a first DC voltage from a power supply and outputs it as a second DC voltage, and an H bridge unit that has first and second series circuits that each include two switching elements connected in series between a high potential corresponding to the second DC voltage and a reference potential. According to a control signal from the control unit, the two switching elements of the first series circuit and the two switching elements of the second series circuit are switched on and off. A voltage generated between a first contact point between the two switching elements of the first series circuit, and a second contact point between the two switching elements of the second series circuit is used as a driving voltage for driving a pump.