Quotables
"It is my heart-warmed and world-embracing Christmas hope and aspiration that all of us, the high, the low, the rich, the poor, the admired, the despised, the loved, the hated, the civilized, the savage (every man and brother of us all throughout the whole earth), may eventually be gathered together in a heaven of everlasting rest and peace and bliss, except the inventor of the telephone. "
Mark Twain ; Christmas greetings, 1890
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| Number | Title | Issue Date |
| 8120885 | Circuit for use with energy converter In an embodiment, the circuit includes: a first switch serially connected to a first discharge resistor, the first switch and the first discharge resistor connected to a positive DC bus; a second switch serially connected to a second discharge resistor, the second s... | 02/21/2012 |
| 8040648 | Speed controller including a device for protection against overcurrents and overvoltages The invention relates to a speed controller comprising: at the input, a rectifier module (12) in order to generate, on a power bus (10, 11), a direct voltage from an alternating voltage available on an electrical supp... | 10/18/2011 |
| 7924540 | Over-voltage protection circuit A main transistor and a reverse current prevention transistor are provided in series between an input terminal and an output terminal. An input diode is provided between a connection point of the reverse current prevention transistor and the main transistor and a re... | 04/12/2011 |
| 7639467 | Over-voltage protection circuit An over-voltage protection circuit assembly includes a connector and an over-voltage protection circuit. The connector includes a power terminal. The over-voltage protection circuit includes a voltage input terminal, and a voltage output terminal. The voltage output... | 12/29/2009 |
| 7636226 | Current protection circuit using multiple sequenced bipolar transistors A current protection circuit that uses a sequence of bipolar transistors to provide or draw current from a protected circuit node. An initial bipolar transistor has its emitter terminal coupled to the protected circuit node, with its collector terminal coupled to a ... | 12/22/2009 |
| 7564666 | Shunt protection circuit and method therefor In one embodiment, a protection device is used to protect a circuit. The protection device has a maximum rated power dissipation that is less than a maximum rated power dissipation of the circuit that is being protected. ... | 07/21/2009 |
| 7561395 | Voltage control circuit A voltage control circuit includes first, second and third transistors, a relay, and first, second, and third resistors. The emitter of the first transistor is connected to a first power supply, the collector of the first transistor is connected to a first contact o... | 07/14/2009 |
| 7551417 | Thin film circuit substrate, piezoelectric speaker device, display device, and sound-generating display device A thin film circuit substrate is provided with a voice-output-section driving section, formed of a thin film layer on an insulative substrate, for driving a voice output section. An antisurge section, provided on a wiring between the voice-output-section driving sec... | 06/23/2009 |
| 7492561 | Protective circuit A protective circuit for protecting an electronic circuit from transient excess voltages, in particular, a series connection of at least two voltage-limiting circuit components being provided between a first connection terminal and a second connection terminal of an... | 02/17/2009 |
| 7489488 | Integrated circuit providing overvoltage protection for low voltage lines An overvoltage protection circuit for protecting low voltage, high speed digital communication lines. The circuit is integrated into a semiconductor chip and includes a diode bridge, a transient voltage suppressor (TVS) device and resistors through which a bias volt... | 02/10/2009 |
| 7397088 | Electrostatic discharge protection device for radio frequency applications based on an isolated L-NPN device A lateral bipolar transistor is used to protect a passive radio frequency (RF) microelectronic circuit during electrostatic discharge (ESD) events. The microelectronic circuit receives a high frequency differential input signal across first and second pads. The late... | 07/08/2008 |
| 7362555 | ESD protection circuit for a mixed-voltage semiconductor device An ESD protection circuit is implemented for a semiconductor device having a first circuit system operating with a first power supply voltage and a first complementary power supply voltage, and a second circuit system operating with a second power supply voltage and... | 04/22/2008 |
| 7359169 | Circuit for protecting integrated circuits against electrostatic discharges A circuit is described that protects an integrated circuit from electrostatic discharges or electrical over-stress. The circuit arrangement has first and second protective elements connected in series between a connection of the integrated circuit and a supply volta... | 04/15/2008 |
| 7352289 | System and method for detecting the connection state of a network cable connector A method for detecting a network cable connection state is disclosed. The method includes detecting a change of connection state of a connector using a sensor that resides in the connector and generating cable connection state information from the information suppli... | 04/01/2008 |
| 7349190 | Resistor-less accurate low voltage detect circuit and method for detecting a low voltage condition A low voltage detect circuit is provided herein for detecting when an external voltage (Vext) drops below a predetermined minimum voltage. In general, the low voltage detect circuit described herein may be configured to detect a low voltage condition based on a thre... | 03/25/2008 |
| 7342281 | Electrostatic discharge protection circuit using triple welled silicon controlled rectifier Provided is an electrostatic discharge (ESD) protection circuit using a silicon controlled rectifier (SCR), which is applied to a semiconductor integrated circuit (IC). A semiconductor substrate has a triple well structure such that a bias is applied to a p-well cor... | 03/11/2008 |
| 7327544 | Battery protection device A battery protection structure is described. The structure provides battery overcharging protection while allowing for minimal battery voltage drop during normal battery operation. One resistance element sets voltage drop during normal operation, and the sum of two ... | 02/05/2008 |
| 7326964 | Light emitting diode package with protective function against electrostatic discharge An LED package having an MEMS switch operated by electrostatic force, capable of continuously protecting an LED from excessive current due to electrostatic discharge. The LED package includes a submount with first and second electrode patterns formed thereon; an LED... | 02/05/2008 |
| 7327543 | Method and device for switching a semi-conductor circuit breaker The invention relates to a method for switching a semi-conductor circuit breaker by means of which the resistance of the breaker gap of the semi-conductor circuit breaker is controlled by a control voltage (Vst), such that the power loss (Pist) from the circuit brea... | 02/05/2008 |
| 7323752 | ESD protection circuit with floating diffusion regions This invention discloses an electrostatic discharge (ESD) protection circuit that comprises a substrate of a predetermined type, at least one MOS transistor being coupled to a pad of an integrated circuit for dissipating an ESD current from the pad during an ESD eve... | 01/29/2008 |
| 7312672 | Local oscillating circuit for receiving high-band and low-band signal A local oscillating circuit includes an integrated circuit that has an oscillating transistor, protection diodes against electrostatic damage, and first and second terminals each being connected to a base and a collector of the oscillating transistor, cathodes of th... | 12/25/2007 |
| 7312716 | Wireless communication using an intrinsically safe design for use in a hazardous area A wireless circuit setup is used in a hazardous area where the circuit is intrinsically safe and does not require explosion proof containment. In this setup, an intrinsically safe master barrier (420) is used without the use of a resistor and one or more resi... | 12/25/2007 |
| 7310025 | Oscillator circuit and integrated circuit incorporating the same The oscillator circuit comprises a capacitor and first to fourth constant current supplies and switches are connected to the capacitor. Both terminals of the capacitor are used for charges and discharges. One period comprises four steps; charging the first terminal ... | 12/18/2007 |
| 7307822 | Semiconductor integrated circuit apparatus A semiconductor integrated circuit device is disclosed, which comprises power supply system circuits, in which power supply terminals and/or ground terminals are separated from each other between the power supply system circuits, an electrostatic discharge protectin... | 12/11/2007 |
| 7295412 | Protection circuit for power management semiconductor devices and power converter having the protection circuit A collector voltage of a power management semiconductor device is detected by a first comparator, and when the detected collector voltage exceeds a first reference voltage, the first comparator outputs a first detection signal. Furthermore, a gate voltage of the pow... | 11/13/2007 |
| 7285007 | Combination power circuit light coding system Systems, methods, and apparatuses for isolating an electrical problem in a power pack include a system in accordance with various embodiments of the invention. The system includes a power pack. The power pack includes an input cord including at least a first indicat... | 10/23/2007 |
| 7279773 | Protection device for handling energy transients A protection device for handling energy transients includes a plurality of basic unit Zener diodes connected in series to achieve a desired breakdown voltage. Each of the basic unit Zener diodes is formed in a first-type substrate. Each of the basic unit Zener diode... | 10/09/2007 |
| 7268398 | ESD protection cell with active pwell resistance control In an NMOS device, the turn-on voltage or the triggering voltage is reduced by adding an NBL connected to an n-sinker and contacted through an n+ region, which is connected to a bias voltage. The bias voltage may be provided by the drain contact or by a separate bia... | 09/11/2007 |
| 7265952 | Two-terminal protecting circuit An integrated circuit provides a load with back-flow and open-circuit protection and includes a load, a trigger circuit, and a shunt circuit. The integrated circuit provides large-size LED displays having series LED connection with back-flow and open-circuit protect... | 09/04/2007 |
| 7245471 | Discharge device for inductive devices A method and apparatus for protecting an energized inductive device such as an electromagnet from an open circuit, i.e., the loss of the power source for the inductive device. A diode is connected across terminals of the inductive device such that when the inductive... | 07/17/2007 |
| 7230810 | Dynamic over-voltage protection scheme for integrated-circuit devices An integrated circuit having a transistor device and over-voltage protection circuitry. The transistor device is implemented in a technology having a specified operating-voltage range, the transistor device having gate, drain, source, and tub nodes, and the specifie... | 06/12/2007 |
| 7221141 | Switched measuring system and method for measuring radiant signals A system for measuring radiant signals includes a detector circuit for detecting a time multiplexed, measured radiant signal and reference signal. A switch is connected to the detector circuit for receiving signals from the detector circuit. A measured signal sampli... | 05/22/2007 |
| 7215523 | Apparatus for protecting an integrated circuit and method thereof An apparatus for protecting an integrated circuit is applied to an electrical apparatus having a control unit. The control unit is used for controlling the integrated circuit and the protecting apparatus. The protecting apparatus includes a power input terminal, a p... | 05/08/2007 |
| 7212023 | System and method for accurate negative bias temperature instability characterization Methods and systems are provided for characterizing the negative temperature bias instability of a transistor. A bias voltage is maintained at a drain terminal of the transistor during a test period. A stress voltage is maintained at a gate terminal of the transisto... | 05/01/2007 |
| 7199990 | Device for short-circuiting two electric lines for reducing a voltage differential A device is for short-circuiting a first electric line with a second electric line in order to reduce a voltage differential. At least one first electronic switching device is provided between the first and second lines and at least one second electronic switching d... | 04/03/2007 |
| 7199784 | One-handed operation of a handheld field maintenance tool A handheld field maintenance tool is provided with features that improve one-handed operation. In one aspect, the tool includes a side strap to allow a technician to exert additional leverage on the tool during one-handed operation. Another aspect includes providing... | 04/03/2007 |
| 7193828 | Video protection circuit providing short to battery protection while maintaining termination impedance The present invention provides for a transistor in series with the video input of a video input device prior to the termination resistor. The transistor is utilized due to the large amount of power that would be dissipated across the termination resistor if the vide... | 03/20/2007 |
| 7193251 | ESD protection cluster and method of providing multi-port ESD protection In multiple port chip circuit, an ESD protection circuit and method of protecting the ports of the multiple port circuit, includes providing a plurality of bi-directional snapback devices such as DIACs and connecting only one electrode to ground while connecting the... | 03/20/2007 |
| 7190564 | Snubber circuit A snubber circuit for use with an integrated power supply control circuit incorporating a transformer and a lateral power MOSFET on a single silicon chip. A capacitor is provided in circuit with the MOSFET and first resistor and diode are in series with each other a... | 03/13/2007 |
| 7170380 | Ignition coil An ignition coil for an internal combustion engine, including a magnetically active core, a first coil shell which is used as a support for a first coil winding made of an electrically conductive wire, and a second coil shell which is positioned so as to be concentr... | 01/30/2007 |
