Patent
Battery pack and cordless power tool using the same as power source
Nobuhiro Takano,Hidekazu Harada +1 more
- 21 Nov 2002
641
TL;DR: In this article, a microcomputer was used to prevent a battery from being over-discharged and to improve a cycle life of the battery by electrically interrupting connection between the battery and a cordless power tool to compulsorily stop driving the tool when the battery voltage has become equal to or fallen below a first predetermined value.
read more
Abstract: To prevent a battery from being over-discharged and to thus improve a cycle life of the battery, a microcomputer electrically interrupts connection between the battery and a cordless power tool to compulsorily stop driving the tool when the battery voltage has become equal to or fallen below a first predetermined value. Also, to enable an operator to know that the battery is in a near over-discharge condition, the microcomputer performs a switching control of a load current when the battery voltage is above the first predetermined voltage but has become equal to or falls below the second predetermined voltage. As a result, the rotation of the motor of the tool goes abruptly slow down or the motor rotates in an irregular fashion, whereby the operator recognizes that the battery is in a charge-need condition.
read more
Chat with Paper
AI Agents for this Paper
Find similar papers on Google Scholar, PubMed and Arxiv
Write a critical review of this paper
Analyze citations of this paper to find unaddressed research gaps
Citations
Patent
Surgical instrument comprising an articulation system ratio
Frederick E. Shelton,Gregory J Bakos,Jason L. Harris +2 more
- 28 Jun 2017
TL;DR: In this paper, a shaft assembly is disclosed comprising a shaft including a proximal end, a distal end and a longitudinal axis extending between the proximal and distal ends.
172
Patent
Surgical instruments with open and closable jaws and axially movable firing member that is initially parked in close proximity to the jaws prior to firing
Frederick E. Shelton,Gregory J Bakos,Jason L. Harris +2 more
- 28 Jun 2017
TL;DR: In this paper, a surgical instrument comprising an articulatable end effector that is selectively articulated about an articulation axis is described. And each jaw engagement feature is configured such that a portion thereof is positioned between the jaw pivot axis and the articulation axes when the axially movable firing member is in the starting position.
172
Patent
Surgical instruments with articulatable end effector with axially shortened articulation joint configurations
Frederick E. Shelton,Jason L. Harris +1 more
- 28 Jun 2017
TL;DR: In this article, the second jaw is pivotable relative to the first jaw about a pivot axis by an axially movable closure member, and a first distance between the pivot axis and an area of camming contact between a closure member cam surface on the closure member and a jaw cam surface is divided by a second distance from the articulation axis to the proximal most fastener location.
172
Patent
Surgical end effectors with improved jaw aperture arrangements
Frederick E. Shelton,Michael W. Goldenbogen,Jason L. Harris,Gregory J Bakos +3 more
- 28 Jun 2017
TL;DR: In this article, a surgical end effector that includes a first jaw and a second jaw that is pivotally attached to the first jaw for pivotal travel between a fully open position and a fully closed position is described.
171
Patent
Articulation systems for surgical instruments
Frederick E. Shelton,Gregory J Bakos,Jason L. Harris +2 more
- 27 Jun 2017
TL;DR: In this paper, a surgical tool assembly can include an end effector comprising an elongate channel configured to receive a fastener cartridge, and the elongate channels can comprise a brace.
171
References
Patent
Battery capacity estimating system and method
Kazuhiko Matsuda
- 28 Apr 1994
TL;DR: In this article, a remaining capacity estimation system and method for an automobile battery capable of estimating and displaying an accurate remaining battery capacity by calculating an internal resistance value of the battery based on a terminal voltage in a disconnected state to electrical loads.
392
Patent
Method of determining and displaying battery charge status
Gunther Bergk,Jochen Cimbal +1 more
- 14 Apr 1997
TL;DR: In this article, a method of determining and displaying the charge status of a storage battery of a battery-operated appliance, such as a razor, is presented, based on the cumulative operating time of the appliance since recharging.
40
Patent
Method and apparatus for adaptive and corrective determination of battery run-time in uninterruptible power systems
Frederick A. Stich,Thomas G Hubert,Timothy Walsh +2 more
- 21 Feb 1995
TL;DR: In this paper, the run-time available from an uninterruptible power system is accurately determined both during supply of power from the battery to the load and during the time where power is supplied directly from an AC power system to the loads.
20
Patent
Circuit arrangement for judging the lifetime of a battery in a no-break power supply system
Ohnari Eiji
- 28 Aug 1986
TL;DR: In this article, a circuit arrangement for judging the lifetime of a battery used in a no-break power supply system includes a step-down transformer connected to an AC power source, a first switch connected between the transformer and a rectifier, a voltage detector connected to one electrode of the battery, an auto-timer connected to the voltage detector, and a second switch connected with the auto timer and interlocked to the first switch.
17
Patent
Method and arrangement for disconnecting consumers
Hartmut Loth-Krausser
- 27 Aug 1997
TL;DR: In this paper, a method and arrangement for disconnecting consumers who are connected to a voltage source, specially a direct voltage source was proposed, based on the knowledge that several consumers are often present in a voltage system, apart of which can be disconnected immediately when one or several conditions for disconnection are fulfilled, while another part of the consumers should be gradually disconnected due to technical safety reasons or psychological aspects.
15