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8917115 Zero crossing detector (ZCD) circuit  
A system for detecting a Zero Crossing point is provided. The system includes: a coupling unit connected between a high voltage side and a low voltage side of the system; and a zero crossing...
8823418 Power on detection circuit  
A power-on-detection (POD) circuit includes first and second comparators, a voltage divider, a detection circuit coupled to a first voltage source node and the voltage divider, and logic circuitry...
8786317 Low voltage detection circuit  
Disclosed is a low voltage detection circuit. The low voltage detection circuit includes, a voltage comparison circuit, an output stage, an electric current circuit, and a judgment circuit. When...
8729954 MOFSET mismatch characterization circuit  
A semiconductor device comprising a first inverter circuit including a first PMOS transistor and a first NMOS transistor, a drain electrode of the first PMOS transistor coupled to a drain...
8723555 Comparator circuit  
A comparator circuit, includes a first power source terminal having a first potential, a second power source terminal having a second potential different from the first potential, a detection...
8519745 Methods and systems for detection of zero crossings in a signal  
Methods and systems for detection of zero crossings in a signal are described. For example, true zero crossings in an alternating voltage power source signal can be detected in the presence of...
8493098 Systems and methods for compensating the input offset voltage of a comparator  
Systems and methods of actively compensating for the input offset voltage of a comparator are provided. A compensation circuit may include a compensation comparator for comparing the comparison...
8476937 Input buffer circuit capable of adjusting variation in skew  
An input buffer circuit for use in a semiconductor device includes a comparator configured to compare a reference voltage with a voltage of an input signal, and output the result of comparison, an...
8451028 Methods and devices for detecting single-event transients  
Methods and devices for detecting single-event transients in combinational logic circuits and other circuits. A sensing circuit detects a voltage or current deviation at a bulk contact node of a...
8432192 2-phase threshold detector based circuits  
A switched capacitor circuit includes a threshold detector to generate a threshold detection signal when a difference between first and second input signals crosses a predetermined level. A coarse...
8373459 Power-on reset circuit  
An integrated circuit provides a power on reset signal with respect to a supply voltage level supplying the electronic device. The integrated circuit comprises a bias current generating stage...
8373489 Offset cancellation for sampled-data circuits  
A comparator based circuit with effective offset cancellation includes first and second amplifiers and an offset capacitor operatively connected to the first and second amplifiers. An offset...
8299819 Peak or zero current comparator  
The present invention relates to a simple and small-sized circuit configuration (10) for significantly reducing resettling time of a peak or zero current comparator. This circuit configuration...
8253453 Brown-out detection circuit  
A data processing system (100), such as a System-on-Chip, includes a processor (120), a memory (140) that has an expected minimum data retention voltage, and a brown-out detector (160), which...
8248109 Methods and systems for detection of zero crossings in a signal  
Methods and systems for detection of zero crossings in a signal are described. For example, true zero crossings in an alternating voltage power source signal can be detected in the presence of...
8242809 Comparator circuit  
A comparator circuit, includes first and second terminals to which a reference voltage that determines a threshold voltage is inputted, a third terminal to which a standard voltage is inputted, a...
8035415 Shift register and semiconductor display device  
The invention provides a shift register which can operate normally while suppressing a delay of signal and a rounding of waveform. The shift register of the invention includes a plurality of...
7893734 Power-on reset circuit  
An integrated circuit provides a power on reset signal with respect to a supply voltage level supplying the electronic device. The integrated circuit comprises a bias current generating stage...
7843217 Shift register and semiconductor display device  
The invention provides a shift register which can operate normally while suppressing a delay of signal and a rounding of waveform. The shift register of the invention includes a plurality of...
7804334 High signal level compliant input/output circuits  
A level detector has an input circuit adapted to accept signals of multiple signal levels for detecting a specific level. The signal levels include a first signal level and a larger second signal...
7733132 Bulk bias voltage level detector in semiconductor memory device  
There is provided a bulk bias voltage VBB level detector in a semiconductor memory device capable of improving tWR fail generated at a low temperature by compensating a temperature variance. The...
7714620 Comparator with amplitude and time hysteresis  
A comparator generates lower and upper reference voltages to establish an amplitude hysteresis. A first comparator circuit generates a first comparison signal indicating whether an input signal is...
7705634 Input circuit of semiconductor integrated circuit  
An input circuit is disclosed. The input circuit can include a cross voltage generating block that can be configured to perform charge-sharing on a pair of input signals whose phases are opposite...
7652508 Circuit device and electronic equipment provided with the same  
In one embodiment, a circuit device that performs a certain processing operation with respect to an input signal by referring to a reference voltage and outputs the result is caused to have a...
7639052 Power-on-reset circuitry  
Power-on-reset circuitry is provided for integrated circuits such as programmable logic device integrated circuits. The power-on-reset circuitry may use comparator-based trip point voltage...
7613901 Comparators in IC with programmably controlled positive / negative hysteresis level and open-drain / push-pull output coupled to crossbar switch or rising / falling edge interrupt generation  
An integrated circuit package includes a processing core for operating on a set of instructions to carry out predefined processes. A plurality of comparators perform compare operations within the...
7605644 Integrated circuit power-on control and programmable comparator  
An integrated circuit is provided with a main supply rail and a virtual supply rail connected by strong and weak header transistors. A power-on controller controls the switching on of the strong...
7535265 High accuracy zero crossing detector and method therefor  
In one embodiment, a zero crossing detector couples a plurality of comparators in parallel and operates at least a portion of the comparators at different time periods.
7525350 Zero-waiting-current precise over-voltage comparator  
A precise over-voltage comparator exhibits zero-waiting-current characteristics during normal working conditions. An NMOS transistor is used in conjunction with other circuit elements to regulate...
7504866 Output hold circuits for sample-data circuits  
A sampled-data analog circuit uses zero-crossing detector. A waveform generator produces a plurality of segments of ramp at the output. An output of a zero crossing detector controls a sampling...
7486115 Sampled-data circuits using zero crossing detection  
A sampled-data analog circuit includes a level-crossing detector. The level-crossing detector controls sampling switches to provide a precise sample of the output voltage when the level-crossing...
7474128 Transient voltage detecting circuit for electronic system having multiple of power supplies  
The invention provides a transient voltage detecting circuit for detecting changes of voltage in an electronic system which has a first power supply (VDD), a second power supply (VDD), a third...
7453290 Supply voltage removal detecting circuit, display device and method for removing latent image  
A supply voltage removal detecting circuit, a display device and method for removing a latent image when a supply voltage is disconnected, in which the supply voltage removal detecting circuit...
7453312 Voltage regulator outputting positive and negative voltages with the same offsets  
A voltage regulator has a first charge circuit, a second charge circuit, and a control circuit. The control circuit has five input terminals and two output terminals. The five input terminals are...
7414440 Low voltage detection circuit  
A low voltage detection circuit includes a reference voltage generation circuit, a divider circuit, a comparator that serves as a comparison circuit, and a second constant current transistor...
7411428 Multisense-adaptive reading circuit, particularly for interleaved DC-DC converters and corresponding reading method  
A multisense-adaptive reading circuit is described, which is associated to a sense element of an interleaved DC-DC converter module. The reading circuit comprises at least a first and second...
7394295 Sense amplifier  
The invention relates to a sense amplifier comprising the following element: a first current mirror unit coupled to a high voltage source, outputting a first current and a second current according...
7382167 Circuit and method for controlling hysteresis for bilevel signal transitions  
An output signal is controlled with adjustable hysteresis in response to a variable voltage input signal. One or more signals derived from the input signal are respectively compared with first and...
RE39918 Direct current sum bandgap voltage comparator  
A direct current sum bandgap voltage comparator for detecting voltage changes in a power supply. The direct current sum bandgap voltage comparator includes a summing node, current sources...
7295045 Circuit for cutting-off output signal  
An output signal cutting-off circuit includes a first switching element, a driving circuit and a voltage-drop-signal generating circuit. When a voltage to be monitored becomes lower than a...
7274221 Comparator circuit  
An improved comparator circuit and associated methods are disclosed. In one embodiment, the comparator circuit comprises two voltage-to-time converter circuits, one for each input voltage to be...
7271624 Low-power supply voltage level detection circuit and method  
An input power supply voltage level detection circuit and method are presented. The circuit includes a main detector core and a two-inverter buffer block that can include a first inverter and a...
7259596 Circuit arrangement for monitoring a voltage  
A voltage (UE1, UE2), other than a supply voltage (UV1, UV2), is monitored and controlled to avoid damage to circuit components by maintaining a required voltage level. Dissipation power losses...
7259597 Low-voltage detection circuit  
A low-voltage detection circuit detects a terminal voltage of a power supply terminal. The low-voltage detection circuit includes a first voltage-dividing circuit, a second voltage-dividing...
7233177 Precision tuning of a phase-change resistive element  
The present invention comprises a method and structure for programming an on-chip phase-change resistor to a target resistance. Using an off-chip precision resistor as a reference, a state-machine...
7233176 CMOS input buffer and a method for supporting multiple I/O standards  
A CMOS input buffer supporting multiple I/O standards and having a pair of NMOS and PMOS differential receivers, each having a first input connected to an input pad and a second input connected to...
7230456 Low current consumption detector circuit and applications  
A low current consumption detector circuit, and its applications are described herein.
7224198 Input and output circuit and method of operation thereof  
An input and output circuit includes a common input and output node, an abnormal voltage detector and a clock generating circuit. The common input and output node is used as an output node in a...
7212043 Line regulator with high bandwidth (BW) and high power supply rejection ration (PSRR) and wide range of output current  
Aspects of a method and system for a linear regulator with high bandwidth, PSRR, and a wide range of output current are provided. A method for isolating voltages in a circuit may comprise applying...
7205808 Power supply switching circuit and method  
A power supply switching circuit includes an input terminal (2) for receiving a signal from a motherboard, an output terminal (4) to output a control signal, a first Bipolar Junction Transistor...

Matches 1 - 50 out of 373 1 2 3 4 5 6 7 8 >