62 results about "Resistive coupling" patented technology

An integrated sensor includes a magnetoresistance element electrically coupled to a device disposed on or integrated in a silicon substrate. A conductor is provided proximate to the magnetoresistance element. The integrated sensor can be used to provide various devices, such as a current sensor, a magnetic field sensor, or an isolator. Further, the integrated sensor can be used in an open loop configuration or in a closed loop configuration in which an additional conductor is provided. The magntoresistance element may be formed over the silicon substrate or on a separate, non-silicon substrate. Also described is an integrated sensor comprising a substrate, a magnetic field transducer disposed over a surface of the substrate, and a conductor disposed over the surface of the substrate proximate to the magnetic field transducer. The magnetic field transducer can be a Hall effect transducer or a magnetoresistance element.

A power supply controller having a multi-function terminal. In one embodiment, a power supply controller for switched mode power supply includes a drain terminal, a source terminal, a control terminal and a multi-function terminal. The multi-function terminal may be configured in a plurality of ways providing any one or some of a plurality of functions including on/off control, external current limit adjustments, under-voltage detection, over-voltage detection and maximum duty cycle adjustment. The operation of the multi-function terminal varies depending on whether a positive or negative current flows through the multi-function terminal. A short-circuit to ground from the multi-function terminal enables the power supply controller. A short-circuit to a supply voltage from the multi-function terminal disables the power supply controller. The current limit of an internal power switch of the power supply controller may be adjusted by externally setting a negative current from the multi-function terminal. The multi-function terminal may also be coupled to the input DC line voltage of the power supply through a resistance to detect an under-voltage condition, an over-voltage condition and/or adjust the maximum duty cycle of power supply controller. Synchronization of the oscillator of the power supply controller may also be realized by switching the multi-function terminal to power or ground at the desired times.

A mixer for a radio transceiver includes a commutating mixer switch having a first differential input port coupled to a DC offset cancellation path. The first differential input port of the mixer switch includes a first terminal coupled to a first end of a first resistor and a second terminal coupled to a first end of a second resistor. Second ends of the first and second resistors are configured to receive a differential input signal. The DC offset cancellation path may provide a resistively coupled DC calibration signal for reducing the magnitude of DC offsets that may be present at the input of the mixer switch. The concept can be used for either image or non-image reject mixers.

A microwave directional coupler includes a microstrip conductor formed on a dielectric substrate and forming a main transmission line having in and out ports that receive signals to be coupled. A substantially U-shaped microstrip conductor is formed over the dielectric substrate adjacent to the main transmission line and forms a secondary transmission line having a coupling section and coupler port. A load resistor is formed within the secondary transmission line, and the coupling section is less than a quarter wavelength of a center frequency.

A faucet includes a logical control, a spout, a hub, a handle, and a touch control operably coupled to at least one of the spout, the hub, and the handle.

A multiplexer for selecting a single output signal from a plurality of input signals. For a plurality of complementary input signal pairs in particular, the multiplexer includes for each pair of complementary input signals a control sub-circuit having a selection switch and a common resistance in parallel. The switch and the common resistance have a common low-potential node that is tied to a pair of resistances that are in parallel, wherein each of the parallel resistances is coupled to the respective high-potential nodes of a differential amplifier. A particular pair of incoming complementary input signal pairs controls the differential amplifier. An off-circuit selection signal selects which switch of a plurality of control sub-circuits is activated. When a switch is on, it creates a bypassing of the common resistance, thereby enabling the turn-on of output drivers coupled to the differential amplifier. When a switch is off, the potential drops across the common resistance and the parallel resistances reduce the potential at the output drivers' control nodes enough to block their turn-on. As a result, the only output drivers providing signal output are those associated with the one selected control sub-circuit having its switch turned on.

A semiconductor memory device and method of operation are provided for a multi-bank memory array (100) with an address fault detector circuit (24, 28) connected to split word lines (WLn-WLm) across multiple banks, where the address fault detector circuit includes at least a first MOSFET transistor (51-54) connected to each word line for detecting an error-free operation mode and a plurality of different transient address faults including a “no word line select,”“false word line select,” and “multiple word line select” failure mode at one of the first and second memory banks. In selected embodiments, the address fault detector provides resistive coupling (33-40) between split word lines across multiple banks to create interaction or contention between split word lines to create a unique voltage level on a fault detection bit line during an address fault depending on the fault type.

A plasma processing system with improved component temperature control is disclosed. The system may include a plasma processing chamber having a chamber wall. The system may also include an electrode disposed inside the plasma processing chamber. The system may also include a support member disposed inside the plasma processing chamber for supporting the electrode. The system may also include a support plate disposed outside the chamber wall. The system may also include a cantilever disposed through the chamber wall for coupling the support member with the support plate. The system may also include a lift plate disposed between the chamber wall and the support plate. The system may also include thermally resistive coupling mechanisms for mechanically coupling the lift plate with the support plate.

A resistance ladder comprises a plurality of resistors in series, with taps for producing comparison voltage levels for an analog-to-digital converter (ADC), coupled at its ends to reference and common voltages via first and second adjustable resistances. The reference voltage is produced by an amplifier whose gain depends on a resistance ratio that is trimmed to determine a gain or full-scale range of the ADC. Offset trimming for the ADC is provided by making equal and opposite changes to the first and second adjustable resistances, so that the full-scale range is unchanged and the offset and gain adjustments are independent of one another.

An oscillator for use within an implantable medical device is provided. The oscillator includes a resonator and a first switch coupled to a first resistive network. The first resistive network provides a first electrical path through the first switch and a second electrical path not going through the switch. The oscillator additionally includes a second switch coupled to a second resistive network. The second resistive network provides a third electrical path through the second switch and a fourth electrical path not going through the switch. Furthermore, the oscillator includes a transistor, the base terminal coupled with the first resistive network and the resonator and the emitter terminal coupled to the fourth resistor. The second electrical path with the first switch opened has a substantially higher resistance than the first electrical path when the first switch is closed. In addition, the fourth electrical path with the second switch opened has a substantially higher resistance than the third electrical path when the second switch is closed.

The invention provides a coupling-degree-adjustable bidirectional coupler which comprises a main microstrip line and an auxiliary microstrip line which are parallel to each other, wherein one end of the main microstrip line is an input end, the other end of the main microstrip line is a straight-through end, the coupling microstrip line is perpendicular to the auxiliary microstrip line, one end of the coupling microstrip line is connected to the midpoint of the auxiliary microstrip line, and the other end of the coupling microstrip line forms a coupling end; two resistors a and b are arranged in the coupling microstrip line; and one side of the coupling microstrip line is provided with an impedance open-circuit line. Compared with a traditional structure, the symmetrical structure ensures that the same coupling degree can be realized at a coupling end regardless of the flow direction of signals; meanwhile, the coupling degree can be conveniently adjusted within a certain range through the design mode of the adjusting resistor, so that the requirements of different users are met, the coupler can be widely applied to transmitting and receiving circuits, meanwhile, flexible adjustment can be carried out, and the application range of the coupler is widened.

The invention discloses a plane lossy filter of a hybrid structure. A micro-strip resonator and a substrate integrated waveguide resonator which are in bilateral symmetry are arranged, an input-output micro-strip line is respectively connected to the micro-strip resonator and the substrate integrated waveguide resonator through a first input-output micro-strip connecting line and a second input-output micro-strip connecting line, and the micro-strip resonator and the substrate integrated waveguide resonator are connected with an output micro-strip line of the lossy filter through the first input-output micro-strip connecting line and the second input-output micro-strip connecting line; the micro-strip resonator, the first input-output micro-strip connecting line, the second input-output micro-strip connecting line and the input-output micro-strip line are all printed on a dielectric substrate; the substrate integrated waveguide resonator is composed of substrate integrated waveguide earthing holes in the dielectric substrate and copper with which the upper portion and the lower portion of the dielectric substrate are covered. The plane lossy filter is easy to machine and low in cost, is of a plane structure, free of cross resistive coupling and is easy to implement.

A power attenuator with at least one coupling port. The coupling port may be provided to monitor input power levels, out put power levels, or other operations of the power attenuator. One or more coupling ports may be located on the power attenuator input part to monitor input power levels and/or on the power attenuator output part to monitor output power levels. The coupling port(s) may be coupled to the main RF path by resistive coupling or reactive coupling. The coupling port(s) allow monitoring of the RF signal passing through the power attenuator to detect for incipient failures.

The invention discloses an automatic discharging circuit for outage of an energy storage element and a discharging method thereof. The automatic discharging circuit comprises alternating current outage detection units, a control signal generation unit and a discharging unit. The alternating current outage detection units are coupled to the two ends of the energy storage element through two diodes and resistors and used for judging whether alternating currents are disconnected. The control signal generation unit is connected with the alternating current outage detection units and the discharging unit and controls the discharging unit to discharge for the energy storage element when obtaining the signal that the alternating currents are disconnected from the alternating current outage detection units. According to the automatic discharging circuit of the energy storage element, the discharging safety of the energy storage element such as a capacitor X can be guaranteed, and power consumption waste caused by a discharging resistor of the energy storage element can be reduced and even avoided.

An electronic ballast includes a rectifier circuit having a first output terminal for coupling with a lamp; a first inductor coupled with a first node; a resonant network coupled with the first node; a first capacitor coupled with the first node; a first resistor coupled with a second node; a second resistor coupled with a second output terminal of the rectifier circuit; a power switch having an output end, a ground end and a control end, wherein the output end is coupled with the first node and the ground end is coupled with the second resistor; a voltage divider for driving the power switch; and a second inductor coupled between the second node and the control end of the power switch.

The invention discloses a design method of a wideband high-flatness microstrip coupler, which comprises the steps of S1, realizing a relatively flat bandwidth coupling effect at a low frequency band through a resistance coupling branch, and realizing a required coupling amount by designing a resistance value of the resistance coupling branch; and S2, in a high-frequency band, through combination of the resistance coupling and coupling line branches, improving the coupling effect of a high-frequency end so as to enable the high-end coupling to realize a high-flatness coupling effect in a wide band. According to the invention, the coupling flatness in a wideband range reaches a very excellent level, and the coupling flatness in a frequency doubling bandwidth up to 20 times or above can reach within 1dB. The coupler is small in size, corresponding performance is achieved in a mode of combining a single-order coupling line and resistance coupling under the condition that standing wave performance of all ports is good and the coupling flatness is excellent, and the size is reduced by three times or above compared with a multi-order coupling line coupler.