Capacitor powered battery replacement device

• US 9,833,223 B2
• Filed: 08/27/2015
• Issued: 12/05/2017
• Est. Priority Date: 10/14/2011
• Status: Active Grant

• Current Assignee: Welch Allyn Incorporated
• Original Assignee: Welch Allyn Incorporated
• Inventors: Wood, Robert J., Salvati, Jon R., Curry, Michael, McMahon, Michael T., Slawson, Steven R.
• Primary Examiner(s): Pacheco, Alexis
• Application Number:
  US14/838,072
• Publication Number:
  US 20160051238A1
• Time in Patent Office: 831 Days
• Field of Search: 320128, 320101, 320110, 320111, 320135, 320136, 320137, 320145, 320162, 320107, 320112, 320113, 320115, 320166, 324426
• CPC Class Codes: A61B 1/227 for ears, i.e. otoscopes
• CPC Class Codes: A61B 17/00 Surgical instruments, devices or methods, e.g. tourniquets A61B18/00 takes precedence; contraceptive devices, pessaries, or applicators therefor A61F6/00; eye surgery A61F9/007; ear surgery A61F11/00
• CPC Class Codes: A61B 18/18 by applying electromagnetic radiation, e.g. microwaves radiation therapy A61N5/00
• CPC Class Codes: A61B 2017/00734 battery operated
• CPC Class Codes: A61B 2090/0409 Specification of type of protection measures
• CPC Class Codes: A61B 2560/0214 of power generation or supply
• CPC Class Codes: A61B 34/75 Manipulators having means for prevention or compensation of hand tremors
• CPC Class Codes: A61B 90/00 Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups A61B1/00 - A61B50/00, e.g. for luxation treatment or for protecting wound edges protective face masks A41D13/11; surgeon's or patient's gowns or dresses A41D13/12; devices for carrying-off, for treatment of, or for carrying-over, body liquids A61M1/00
• CPC Class Codes: A61M 2205/8237 Charging means
• CPC Class Codes: H01M 10/42 Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells H01M10/60 takes precedence
• CPC Class Codes: H02J 2207/20 Charging or discharging characterised by the power electronics converter
• CPC Class Codes: H02J 2310/22 The load being a portable electronic device
• CPC Class Codes: H02J 2310/23 The load being a medical device, a medical implant, or a life supporting device
• CPC Class Codes: H02J 5/00 Circuit arrangements for transfer of electric power between ac networks and dc networks H02J3/36 takes precedence
• CPC Class Codes: H02J 7/00 Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
• CPC Class Codes: H02J 7/00041 in response to measured battery parameters, e.g. voltage, current or temperature profile
• CPC Class Codes: H02J 7/00047 with provisions for charging different types of batteries
• CPC Class Codes: H02J 7/0042 characterised by the mechanical construction
• CPC Class Codes: H02J 7/0044 specially adapted for holding portable devices containing batteries H02J7/0045 takes precedence
• CPC Class Codes: H02J 7/345 using capacitors as storage or buffering devices
• CPC Class Codes: Y02E 60/10 : Energy storage using batteries

Abstract

A handheld device includes an electronic instrument and a capacitive power supply for storing and delivering power to the electronic instrument. The capacitive power supply includes at least one capacitor, and an electronic circuit operable to boost a voltage from the capacitor to a higher voltage for use by the electronic instrument. The capacitive power supply can be rapidly recharged. Some configurations include an accelerometer which permits the handheld device to detect movement and perform various operations responsive to detected movement. A dual charging station is also disclosed.

Claims

1. A battery replacement device comprising:

a packaging including at least a positive terminal and a negative terminal, the packing having a size and shape of at least one battery;

at least one capacitor disposed in the packaging; and

a mimic circuit electrically coupled to receive power from the at least one capacitor and deliver the power to at least one of the positive and negative terminals, wherein the mimic circuit changes an output characteristic of the at least one capacitor into an output characteristic of the battery, the mimic circuit comprising;

a capacitor characteristic detector that evaluates a first characteristic of the at least one capacitor, comprising an analog to digital converter that detects an output voltage from the at least one capacitor;

a characteristic converter that converts the first characteristic into a second different characteristic, the characteristic converter comprising a processing device that utilizes a lookup table to determine the second different characteristic based on the first characteristic of the at least one capacitor; and

output circuitry configured to generate the second different characteristic from the first characteristic, wherein the output circuitry further comprises;

a digital to analog converter that receives a digital signal from the processing device and generates an output voltage; and

a power amplifier that generates an amplified output at the output voltage to power an electronic device.

2. The battery replacement device of claim 1, wherein the output characteristic is a discharge characteristic.

3. The battery replacement device of claim 2, wherein the discharge characteristic is an output voltage associated with a percentage of a capacity of the capacitor that has been discharged.

4. The battery replacement device of claim 1, wherein the at least one capacitor is one or more super capacitors.

5. The battery replacement device of claim 1, wherein the packaging has the size and shape of one of:

AAA, AA, C, or D type battery.