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Pneumatic Shoe Lacing Apparatus
This invention provides a pneumatic shoe lacing apparatus for the pneumatic lacing of shoe.
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| Number | Title | Issue Date |
| 7405547 | Stabilized DC power supply circuit having a current limiting circuit and a correction circuit A stabilized DC power supply circuit of the present invention includes an output current limiting circuit for limiting an output current of an output transistor, and a correction circuit for correcting variation of restriction in the output current caused by variati... | 07/29/2008 |
| 7362080 | Power regulator having over-current protection circuit and method of providing over-current protection thereof A power regulator includes a pass transistor, a feedback circuit, an error amplifier and a protection circuit. The pass transistor receives an unregulated first power supply voltage, and an output terminal of the power regulator outputs an output voltage varying dep... | 04/22/2008 |
| 7358710 | Temperature-compensated inductor DCR dynamic current sensing A resister network having a negative temperature coefficient (NTC) may be utilized to create a temperature compensated equivalent resistance “R” for a current sensing RC network used in measuring inductor current of a DC-to-DC converter or a general switching re... | 04/15/2008 |
| 7331001 | Test card for multiple functions testing The present invention provides a test card for multiple functions testing. The test card includes a host of media devices, all of which reside on a single printed circuit board; and a selection device which selects each one of the host of media devices for testing. ... | 02/12/2008 |
| 7215103 | Power conservation by reducing quiescent current in low power and standby modes A method and circuit for automatically lowering a quiescent current at a predetermined threshold. A compact and low power current comparator is employed to detect the power consumption conditions, and issues a control signal to lower current consumption within a pow... | 05/08/2007 |
| 7176664 | Method and system for providing precise current regulation and limitation for a power supply A method for providing precise current regulation and limitation for a power supply is provided. The method includes amplifying any difference between a load current signal and a current setting reference signal with a feedback loop amplifier to generate a feedback ... | 02/13/2007 |
| 7038431 | Zero tracking for low drop output regulators A low drop output regulator may be used for power management. The low drop out regulator may include an amplifier network having a transfer function may be used to provide a substantially constant voltage and variable current to a load. A zero compensation network m... | 05/02/2006 |
| 7019499 | Low noise fast stable voltage regulator circuit A low noise voltage regulator circuit with fast stable output voltage is disclosed. The low noise voltage regulator circuit contains a reference voltage generator, for generating a reference voltage; a switching circuit, which is electrically coupled to the output o... | 03/28/2006 |
| 6947267 | RC controlled ESD circuits for mixed-voltage interface The present invention relates an electrostatic discharge (ESD) protection device that is applied to a mixed voltage circuit assembly. The device comprises a RC controlled circuit subassembly and a field transistor, which the RC controlled circuit is coupled with the... | 09/20/2005 |
| 6940703 | Overvoltage protection circuit An overvoltage protection circuit for interposing between an input voltage and a supply voltage is described. The overvoltage protection circuit includes switch circuitry connected to and passing current between an input voltage node and a supply voltage node, the i... | 09/06/2005 |
| 6940255 | Battery charge indicator such as for an implantable medical device This document discusses, among other things, a system providing a battery charge indicator for an implantable medical device, such as using a lithium/carbon monofluoride (CFx) or other battery. Capacity vs. voltage data from a separate characterizing battery into a ... | 09/06/2005 |
| 6930539 | Reference voltage circuit and method of generating a reference voltage A reference voltage circuit has a reference voltage source, a charge storage device and also switching devices, which enable occasional operation of the reference voltage source during an on-time period. A reference voltage generated by the reference voltage source ... | 08/16/2005 |
| 6919757 | Voltage regulator with turn-off assist To provide a voltage regulator capable of securely being turned off even if the regulator is used under a high temperature and an impedance of an external load is large. A voltage regulator is provided, which includes a voltage divider circuit that can divide a pote... | 07/19/2005 |
| 6650097 | Voltage regulator with reduced power loss To provide a voltage regulator with high safety in which its characteristics do not deteriorate and the regulator is not destroyed even if it is used with a large loss, for example, it is erroneously used in excess of an allowable loss. The voltage regula... | 11/18/2003 |
| 6583607 | Linear regulator with a selectable output voltage A control method and a linear regulator of the type including a power MOS transistor, controlled by a differential amplifier having a first input terminal receiving a reference voltage and a second input terminal receiving, via a switchable resistor circu... | 06/24/2003 |
| 6181118 | Control circuit for controlling a semi-conductor switch for selectively outputting an output voltage at two voltage levels A control circuit (1) for controlling a FET (2) for outputting a 3.3 volt or a regulated 1.5 volt output to an AGP bus on a PC motherboard in response to a TYPEDET signal being applied to a control terminal (3) of the control circuit (1) through an input ... | 01/30/2001 |
| 6046577 | Low-dropout voltage regulator incorporating a current efficient transient response boost circuit An improved low-dropout ("LDO") voltage regulator incorporates a transient response boost circuit which is added to the slew-rate limited node at the control terminal of the LDO voltage regulator output transistor and provides improved transient response ... | 04/04/2000 |
| 6034515 | Current limiting circuit A current limiting circuit in which, when the input DC voltage is raised from zero volts to the reference voltage, an output DC flows through the connected load only when the value of the input DC voltage rises to a value above an undervoltage threshold v... | 03/07/2000 |
| 5986441 | Circuit configuration for capturing the load current of a power semiconductor component with a load on the source side The circuit configuration captures the load current of a field effect-controllable power semiconductor component. The drain and gate terminals of a further field effect-controllable semiconductor component are connected to the drain and gate terminals, re... | 11/16/1999 |
| 5920472 | High voltage converter circuit A power supply apparatus for a drive unit in a high voltage converter circuit, the circuit has a plurality of power semiconductors connected in series. Each power semiconductor is connected to a drive unit for turning the power semiconductor on and off. T... | 07/06/1999 |
| 5644215 | Circuit and method for regulating a voltage A circuit regulates a voltage by controlling a voltage generator. A voltage divider is coupled between the regulated voltage and a supply voltage, and generates a sense voltage. A clamp circuit is coupled to the divider, and reduces the sensitivity betwee... | 07/01/1997 |
| 5550462 | Regulated power supply circuit and an emitter follower output current limiting circuit The present invention provides a regulated power supply circuit capable of stably limiting an output current even in a case where an output current detecting resistor having a low resistance is used. Emitter current of a series regulating transistor Q11 i... | 08/27/1996 |
| 5528127 | Controlling power dissipation within a linear voltage regulator circuit A method and apparatus for providing a regulated output voltage when supplied with an unregulated input voltage utilizes a detection circuit to selectively steer current between two current paths in order to minimize the amount of power dissipated by a pa... | 06/18/1996 |
| 5272399 | Circuit limiting the load current of a power MOSFET A circuit configuration for limiting current flowing through a power MOSFET includes a voltage divider being connected between drain and source terminals of the power MOSFET and having a node at which a voltage following a drain-to-source voltage of the p... | 12/21/1993 |
| 5243271 | Voltage stabilized power supply with capacitor isolation during supply voltage variations A power-supply arrangement comprises a reference circuit for generating a reference voltage (Vref). The reference circuit is coupled between a first (1) and a second (2) supply voltage terminal for receiving a supply voltage. A stabilizing circuit (4) gen... | 09/07/1993 |
| 5180965 | Direct-current power source circuit with back gate control circuit for power MOS-FET A direct current power source circuit has a voltage control power MOS-FET and a back gate control circuit. The voltage control power MOS-FET is connected between an input terminal and an output terminal of the circuit and the back gate control circuit is ... | 01/19/1993 |
| 5004970 | Device and a process for detecting current flow in a MOS transistor In a device for detecting the flow of a current lower than a given threshold current in a load (L) in series with a power MOS transistor (M1), the free terminal of the MOS transistor is connected to a first terminal (1) of a supply source, the second term... | 04/02/1991 |
| 4950975 | Preliminary stage of a voltage regulator with low loss of voltage, and voltage regulator with said preliminary stage A preliminary stage of a voltage regulator with a low voltage loss to be connected with a further stage of the voltage regulator and comprising an input and output voltage terminals, a common voltage terminal for input voltage and output voltage, a capaci... | 08/21/1990 |
| 4887021 | Precision noise spike elimination circuit for pulse width modulators and PWM inverters Circuitry is provided to eliminate high frequency noise spikes in the output of a pulse width modulator and inverters employing pulse width modulators. This circuitry provides a precision noise spike elimination circuit based on a discovery that the switc... | 12/12/1989 |
| 4800331 | Linear current limiter with temperature shutdown A high efficiency current limit circuit comprises a current sensor, a control unit responsive to the current sensor for providing a control signal to a solid-state series pass element which limits load current. A thermal safety circuit provides overtemper... | 01/24/1989 |
| 4771357 | Power driver having short circuit protection A power driver including a switch (17) that connects between a power input terminal (12) and a power output terminal (13). A current sense unit (22) provides an over current sense signal if an over current condition should exist with respect to the switch... | 09/13/1988 |
| 4706159 | Multiple power supply overcurrent protection circuit A short circuit protection circuit and associated method is provided, for a device with a first and second power supply. The circuit comprises a pair of switches connected to the respective power supplies, a current sensing element connected to each switc... | 11/10/1987 |
| 4704572 | Series voltage regulator with limited current consumption at low input voltages A series voltage regulator having a regulating transistor (T1) arranged with its emitter-to-collector path in a series arm of the regulator, the base of which is controlled via a control transistor (T2) by a first differential amplif... | 11/03/1987 |
| 4684878 | Transistor base current regulator The collector-to-emitter voltage (VCE) of a transistor switch and its base drive are designed to have maximum specified values when the transistor switch conducts the highest specified load current. The base drive to the transistor switch is re... | 08/04/1987 |
| 4669026 | Power transistor thermal shutdown circuit A thermal shutdown circuit for use with a high power transistor which incorporates a sense emitter. A differential amplifier is driven from the transistor base and the sense emitter and has an output that is coupled to the power transistor base. When the ... | 05/26/1987 |
| 4489141 | Passive potentiostat This invention provides a passive potentiostat which is adapted to function as a self-adjustable unipolar resistive load. The passive potentiostat is suitable for controlling the half-cell potential of a thermodynamically favorable electrochemical process, e.g... | 12/18/1984 |
| 4146903 | System for limiting power dissipation in a power transistor to less than a destructive level A system for limiting power dissipation in a power transistor to less than a destructive level is disclosed. The power transistor includes a base and a power emitter in the base. The system includes a sense emitter positioned close to the power emitter in... | 03/27/1979 |
| 4050083 | Integrated thermally sensitive power switching semiconductor device, including a thermally self-protected version A monolithic semiconductor device is disclosed comprising a power switching thyristor and a temperature sensitive thyristor integrated on a common substrate. In preferred form, the temperature sensitive thyristor is electrically connected between the gate... | 09/20/1977 |
