| Patent Number |
Title Of Patent |
Date Issued |
| 6388196 |
Fan wire collection structure |
May 14, 2002 |
| A fan wire collection structure includes a base, a rise portion formed on the base, at least one flank supports each connecting to one side of the base, and at least one stop boards each connecting to one of the flank supports integrally, wherein wires are twisted in a space defined by t |
| 6384575 |
Battery charger capable of charging different size of batteries |
May 7, 2002 |
| A battery charger capable of simultaneously charging at least one battery of different size is provided. The battery charger includes an upper housing, a lower housing, and at least one charging unit. The charging unit includes a battery receptacle, a switching device and a contact e |
| 6383841 |
Method for encapsulating with a fixing member to secure an electronic device |
May 7, 2002 |
| The present invention is to provide a effective method for packing an electronic device including steps of: (a) putting an electronic device having a plurality of pins in a frame having a plurality of connecting members corresponding to said plurality of pins; (b) electrically connec |
| 6368129 |
Electrical connector with outer and inner sleeves |
April 9, 2002 |
| The present invention provides a dust-proof electrical connector. This connector includes an outer sleeve and an inner sleeve as a receiving end for connecting a corresponding connector. The inner sleeve contacts a first contact terminal disposed on the corresponding connector. A second |
| 6366486 |
Power supply device for enhancing heat-dissipating effect |
April 2, 2002 |
| A packing structure of a switching power supply is used for enhancing heat-dissipating effect. The packing structure includes a printed circuit board, a transformer, an inductor having an inductive winding, a converter placed on a pad of the printed circuit board, wherein the pad is |
| 6356462 |
Soft-switched full-bridge converters |
March 12, 2002 |
| A family of soft-switched, full-bridge pulse-width-modulated (FB PWM) converters provides zero-voltage-switching (ZVS) conditions for the turn-on of the bridge switches over a wide range of input voltage and output load. The FB PWM converters of this family achieve ZVS with the minim |
| 6353547 |
Three-level soft-switched converters |
March 5, 2002 |
| Three-level, constant-frequency, soft-switched isolated converters provide zero-voltage-switching (ZVS) conditions for the turn-on of all primary switches over a wide range of input voltage and output load. These converters achieve ZVS with the minimum duty cycle loss and circulating |
| 6346012 |
Locking cartridge for conveniently locking very thin connector with near-zero inductance onto PC |
February 12, 2002 |
| The present invention discloses a direct-current (DC) electric connector that includes plurality of conductive and insulation layers constituting a near-zero inductance connector. The connector further includes a top and a bottom insulation-and-protection covers covering and protecting t |
| 6345904 |
Fastening device for projector lamp |
February 12, 2002 |
| A fastening device for projector lamp. The fastening device includes a lamp, a lamp casing and a strip-shaped spring that fastens the lamp onto the lamp casing. The lamp casing has a first sidewall, a second sidewall, a bottom wall and an upper connective structure, together they enclose |
| 6340292 |
Anti-fracture fan structure |
January 22, 2002 |
| The invention provides an anti-fracture fan structure including a hub, a plurality of blades, and a plurality of ribs. The hub has an inner surface formed inside and encircling it. The plurality of blades are arranged outside and around the hub. The plurality of ribs projects from the in |
| 6312271 |
Connector having foldable plug |
November 6, 2001 |
| A structure of a connector for connecting a power supply to a power-receiving device is provided. The connector includes an upper housing, a foldable plug, an orientating base, a circuit board and a lower housing. The pins of the plug are electrically connected with the circuit board |
| 6301128 |
Contactless electrical energy transmission system |
October 9, 2001 |
| A high-performance contactless electrical energy transmission (CEET) technique which employs the inductive energy transmission principle is described. The proposed technique enables the implementation of high-efficiency, high-power-density, fully-regulated CEET systems suitable for a |
| 6276833 |
Locking device and its related assemblage |
August 21, 2001 |
| A locking device and its assemblage are provided for confining an object. The locking device is used to confine the object having an end having a recess having a defining surface to prevent the object from being displaced in a direction. The locking device is a geometrically closed-l |
| 6270313 |
Fan and airflow for cooling electronic device with reduced turbulence and noise and higher effic |
August 7, 2001 |
| The present invention discloses a cooling system for temperature control, e.g., removing heat from electronic circuits. The cooling system includes a fan and an airflow guiding system where the guiding system includes an inlet air duct for guiding the airflow to the fan. The inlet air du |
| 6250810 |
Construction of pillow |
June 26, 2001 |
| A pillow for holding a bearing comprises an outer circumferential sidewall having a radially inner side and an inner circumferential sidewall for holding the bearing. The inner circumferential sidewall has a first end connected with the radially inner side of the outer circumferential |
| 6239584 |
Two-inductor boost converter |
May 29, 2001 |
| A two-switch, two-inductor boost converter achieves output-voltage regulation in a wide input-voltage and load-current range using a constant-frequency by employing an auxiliary transformer to couple current paths of the two boost inductors so that both inductors carry the same curre |
| 6229326 |
Method and apparatus for testing electronic device in burn-in process |
May 8, 2001 |
| A method and an apparatus are provided for determining a defect of an electronic device in a burn-in process. The method for testing the electronic device having a plurality of output signals includes steps of (a) providing a test circuit electrically connected to the electronic devi |
| 6204612 |
Discharge device |
March 20, 2001 |
| A device for discharging charges from a capacitor of a power system is disclosed. The discharge device includes a discharge loop electrically connected to the capacitor for providing a discharging passageway for the charges to be safely discharged therethrough, and a control loop ele |
| 6204574 |
Backup power-supply device |
March 20, 2001 |
| A backup power-supply device is provided. The backup power-supply device can supply a DC power to an electric appliance when an external power source electrically connected to the electric appliance is interrupted. The backup power-supply device can sustain supplying the DC power for at |
| 6201929 |
Multistage rotating speed control circuit for DC motor |
March 13, 2001 |
| The present invention provides a multistage rotating speed control circuit which is connected to a positive DC supply voltage and controls the rotating speed of the DC motor.The multistage rotating speed control circuit comprises a digital control circuit and a driving circuit. Besides, |
| 6193478 |
Construction of a fan |
February 27, 2001 |
| An improved construction of a fan fixed to a system housing when in use, including: an impeller which rotates and cuts the surrounding fluid enabling the surrounding fluid to form an axial flow, and which extends over a length in the axial direction of the fan; a driving device having a |
| 6193467 |
Driven unit, especially for use in a cross flow fan |
February 27, 2001 |
| A driven unit driven adapted to be used in a cross fan is provided. The driven unit is driven by a motor. The main feature of the driven unit is that there is a concave region on the surface of its rotary shaft. The elastic rubber cap is embedded in the concave region and the embedded |
| 6188295 |
Frequency adjustments by patterning micro-strips to form serially connected capacitors or induct |
February 13, 2001 |
| The present invention discloses an electronic device formed by interconnecting a plurality of circuit elements. The electronic device includes a first patterned conductive layer constituting micro-strips for interconnecting the plurality of circuit elements. And, one of the micro-str |
| 6176712 |
Safe connector |
January 23, 2001 |
| Disclosed is a safe connector including a casing, a plurality of conducting elements, a protecting board, an elastic device, and a locking device. The casing has an opening. The plurality of conducting elements are set in the casing for conducting electricity. The protecting board is set |
| 6147882 |
Single-stage input current shaping technique with voltage-doubler rectifier front-end |
November 14, 2000 |
| A single-stage input-current-shaping (S.sup.2 ICS) converter of the present invention integrates a voltage-doubler-rectifier front-end with a DC/DC output stage. Two families of voltage-doubler S.sup.2 ICS converters are disclosed. In one family, a 2-terminal dither source is provided be |
| 6115268 |
Method and apparatus for supplying uninterrupted power |
September 5, 2000 |
| An expedient and simplified uninterrupted power-supplying apparatus is provided. Such apparatus includes a power-storing device for storing an electric signal in a first instance and releasing the electric signal in a second instance, an AC/DC converting device for converting an AC signa |
| 6111766 |
Method for compensating an output signal of an electronic device |
August 29, 2000 |
| A method is provided for compensating an output signal of an electronic device having an input end electrically connected to a feedback device and an output end electrically connected to a load. This method includes steps of (a) measuring a standard voltage V.sub.o of the load, (b) deter |
| 6107717 |
Motor structure having bearing preload assembly |
August 22, 2000 |
| A motor structure comprises a shaft formed with a circumferential groove; a hub fixed on the shaft and formed with a projected portion at the inner lower end of the central part thereof; at least two bearings for supporting the shaft for rotation; a bearing seat formed with at least one |
| 6104151 |
Starting circuit and method for stagedly starting an electrosensitive circuit |
August 15, 2000 |
| A starting circuit and a method for stagedly starting an electrosensitive circuit without introducing a surging current are disclosed. The method includes (a) providing a feedback signal by the electrosensitive circuit, (b) comparing the feedback signal with a reference signal to generat |
| 6081425 |
Miniaturizing power supply system for portable computers by improving heat dissipation therein |
June 27, 2000 |
| The present invention discloses a power supply for providing power from an external power source to a portable electronic device. The portable power supply system includes electronic circuits including an AC-to-DC converter for converting the power from the external power source for the |
| 6072261 |
Motor construction |
June 6, 2000 |
| An improved motor structure comprising a hollow stator base having a substantially cylindrical hub including a central hole, and a hollow stator having a silicon steel sheets set and a central bore through which the hub is inserted upon assembling. The hub is composed of a plurality of |
| 6062300 |
Evenly heat-dissipating apparatus |
May 16, 2000 |
| An apparatus is adapted to be disposed between a heating element and a housing for evenly dissipating heat generated by the heating element. The apparatus includes a first thermal conductor having a first part contacted with the heating element for absorbing the generated heat from the h |
| 6051961 |
Soft-switching cell for reducing switching losses in pulse-width-modulated converters |
April 18, 2000 |
| A circuit technique substantially reduces the switching losses of a pulse-width-modulated (PWM) converter caused by the turning-on (closing) and turning-off (opening) characteristic of the switch and the reverse-recovery characteristic of the rectifier. The losses are reduced by usin |
| 6050786 |
Heat dissipation structure of a fan unit |
April 18, 2000 |
| A heat dissipation structure of a heat-dissipating box fan is disclosed. The structure is used for dissipating the heat generated by the motor of the fan unit. The structure has a bearing sleeve that comprises a hub in the form of a generally hollow cylindrical column and a sleeve base. |
| 6049473 |
Harmonic-injection control technique for three-phase, discontinuous-conduction-mode, high-power- |
April 11, 2000 |
| A three-phase discontinuous-conduction-mode (DCM), pulse-width-modulated (PWM) boost rectifier using harmonic-injection control is provided with a feedforward path to vary the duty cycle of the PWM modulator according to the input voltage, so as to provide improved transient response. In |
| 6028418 |
Boost converter with minimum-component-count active snubber |
February 22, 2000 |
| A boost converter includes a novel active snubber which reduces losses caused by the reverse-recovery characteristic of the boost rectifier. The active snubber includes a snubber inductor, a ground-referenced referenced auxiliary switch, and a snubber rectifier. The losses are reduced by |
| 6024496 |
Shaft coupling arrangement including oil sleeve bearing and oil supply |
February 15, 2000 |
| An oil sleeve bearing device for holding a shaft of a motor in a motor base and permitting smooth revolving of the shaft therein is disclosed. The oil sleeve bearing device includes a sleeve bearing for holding the shaft, a bearing holder for supporting the sleeve bearing, and a securing |
| 5991172 |
AC/DC flyback converter with improved power factor and reduced switching loss |
November 23, 1999 |
| A new single stage, single switch input current shaping circuit features substantially reduced turn-on switching losses of the switch in the flyback-converter. In this technique, the turn-on switching losses due to the discharge of the output capacitance of the switch are reduced by |
| 5986912 |
Compact assembly configuration and process for reducing lead wire connections and solder joints |
November 16, 1999 |
| The present invention discloses an electronic device for rectifying input electric signals to generate rectified output signals. The electronic device includes an input inductive circuit includes an input conductive winding-trace for receiving the input electric signals. The electronic |
| 5977680 |
Method for trimming the stator of a motor |
November 2, 1999 |
| An improved method for stator of a motor, which is related to a shape of a stator made of laminated silicon steel in a motor; the prime of the method is to reduce the cogging torque upon the motor running so as to reduce the vibration of motor, and to increase the performance of the moto |
| 5959438 |
Soft-switched boost converter with isolated active snubber |
September 28, 1999 |
| A boost converter employs an isolated active snubber to reduce the losses caused by the reverse-recovery characteristic of a boost rectifier and the turn-on discharge loss of the output capacitance of the boost switch. The losses are reduced by inserting the primary winding of a coupled- |
| 5927859 |
Sleeve bearing structure |
July 27, 1999 |
| A sleeve bearing structure for holding a shaft rotating in a first direction includes a bearing having an inward wall defining therein a through hole, a bearing stand engaged with the bearing for supporting the bearing and having a cavity which is in communication with the through ho |
| 5906506 |
Modularized computer peripherals formed with universally adaptable shape for integration as an u |
May 25, 1999 |
| A new and improved AC-to-DC adapter for providing DC input to a portable computer which is operable with a removable rechargeable battery is disclosed in this invention. The adapter is enclosed in an adapter box which is formed with a shape identical to the rechargeable battery. The |
| 5903146 |
Distributing test system and method |
May 11, 1999 |
| The present invention comprises a system for testing a manufacture. The testing system comprises at least two test means wherein each of the test means is capable of testing at least a performance parameter of the manufacture. The test means are distributed in a production line of the |
| 5880678 |
Warning device for monitoring rotation speed of prime mover |
March 9, 1999 |
| A warning device for monitoring the rotational speed of a prime mover which includes: a) a converting unit electrically connected to the prime mover for converting a digital signal representative of the rotational speed of the prime mover to an analog voltage; b) a reference unit for pro |
| 5863134 |
Bearing without contacting fast spinning shaft |
January 26, 1999 |
| To achieve an efficacy of allowing a shaft to spin in high speed without contacting the bearing in which the shaft is seated, a bearing is configured to comprise an inner ring which includes: at least two slant arc surface zones each spaced out from the surface of the shaft with a gap |
| 5859487 |
Stator structure of motor and its forming method |
January 12, 1999 |
| The stator structure for improving the efficiency of motor is described which includes: a) a ring; b) N pieces of upper salients spacedly connected to the ring and located on a first plane; c) N pieces of lower salients spaced at intervals and located on a second plane; d) N pieces of |
| 5855064 |
Method of making personal computer power supply systems |
January 5, 1999 |
| The present invention discloses a power supply system with modularized and integrated cable interface configuration for providing power from an external power source to a plurality of subsystems in a personal computer. The power supply system includes a power cable for connecting the pow |
| 5847944 |
Robust, harmonic-injection system for single-switch, three-phase, discontinuous-conduction-mode |
December 8, 1998 |
| In a single-switch, three-phase DCM boost rectifier, a voltage signal proportional to the inverted ac component of the rectified, three-phase, line-to-line input voltages is injected as a modulating signal into the control circuit to vary the duty cycle of the rectifier within one line |
| 5814898 |
Uninterruptable power supply device for a motor |
September 29, 1998 |
| An uninterruptable power supply device for a motor is disclosed. The uninterruptable power supply device includes: a power storing device, connected to a utility AC power source, for storing an electrical charge; a DC/AC convertor, connected to the power storing device, for converting |
