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JP7417405B2 |
Disclosed are devices, systems and methods for allowing a ramp signal generator to reduce noise. A ramp signal generator may include a reference voltage generator configured to generate a reference voltage, a gain controller configured t...
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JP2024001385A |
The present invention provides a lamp waveform generation circuit and a liquid crystal display device that have low power consumption and high reliability. A ramp waveform generation circuit according to the present embodiment includes a...
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JP2023136919A |
To provide a signal generation circuit capable of suppressing deterioration in signal quality.A signal generation circuit according to one embodiment disclosed herein includes: an amplification unit which has a first input unit, a second...
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JP7325649B2 |
A differential amplifier circuit generates a first current and a second current having a current difference obtained by amplifying a voltage difference between an input voltage and a reference voltage. An output stage supplies current pr...
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JP7324699B2 |
To provide a clock generating circuit that can suppress the number of terminals associated with the spread spectrum function.A clock generating circuit comprises: a second comparator that has a first input end to which a terminal is conn...
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JP7296962B2 |
A system and method for generating a radio frequency (RF) waveform are described. The method includes defining a train of on-off pulses separated by an off state having no on-off pulses. The method further includes applying a multi-level...
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JP2023077933A |
To generate a sawtooth wave voltage in any cycle regardless of variations of component characteristics depending on temperatures and aging of components.A sawtooth wave voltage generator comprises: a phase control section which outputs a...
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JP2023026822A |
To provide an oscillator circuit less prone to cause erroneous operation, efficiency deterioration or the like.An oscillator circuit 2 has: a plurality of transistors 2A to 2C configured to form a loop structure; a plurality of constant ...
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JP2023007768A |
To provide an electronic circuit capable of effectively expanding jitter by using a passive element.An integration circuit 10 including a resistor 11, a capacitor 12, and a magnetoresistive element 13 is provided. In the integration circ...
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JP2022139217A |
To provide a slope signal generation circuit, a PWM signal generation circuit, a display device, and a slope signal generation method capable of generating a highly accurate slope signal.A slope signal generation circuit in one embodimen...
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JP2022071983A |
To improve linearity of a ramp signal in a ramp signal output circuit that generates a plurality of ramp signals.A photoelectric conversion apparatus includes a pixel region where pixels are arranged in a matrix form, and a column circui...
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JP7061710B2 |
A system for generating a control signal for a capacitive sensor includes a waveform generator configured to generate a digital waveform, a first sigma-delta modulator (SDM) configured to generate a first output corresponding to the cont...
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JP7030879B2 |
To provide a power supply device is low in price and small in power loss.A power supply device 301 includes a triangular wave generation circuit 10, a bias superimposition circuit 20, and a control circuit 40. The triangular wave generat...
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JP2022029594A |
To provide a circuit device, etc., capable of controlling a wave shape formation based on whether the gate voltage of an output transistor has reached a determination voltage.A circuit device 100 includes an output terminal TQ, an output...
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JP6952444B2 |
An oscillation circuit includes: a periodic signal generator which generates a periodic signal whose frequency varies; and a clock generator which generates a clock signal having a frequency commensurate with the frequency of the periodi...
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JP2021141411A |
To provide a simple delay circuit that can obtain stable delay time, and an oscillation circuit including the delay circuit.A delay circuit (100) includes a current generation circuit (10) including a first MOS transistor operating in a ...
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JP2021100232A |
To provide a circuit that generates a clock having a frequency that changes such that a charging current becomes constant by solving a problem in which, when a large-capacity capacitor is charged using a charge pump circuit (SC power sup...
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JP6848105B2 |
The apparatus is a wake-up circuit including a first comparator coupled to an input signal and configured to compare the input signal to a first comparison value. The wake-up circuit includes a second comparator coupled to the input sign...
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JP6815452B2 |
A modulator includes: a high voltage transformer transforming a voltage supplied through a primary side and a secondary side to apply a current pulse to a driving device; a bipolar pulse generator applying a magnetizing pulse and a main ...
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JP6812133B2 |
To provide an automatic adjustment oscillator for automatically adjusting an oscillation frequency in a case where the oscillation frequency is shifted by variation in properties of circuit elements such as a resistor and a capacitor and...
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JP6747768B2 |
A method for generating a pulse, wherein a predetermined first limit curve and a predetermined second limit curve are defined for a pulse shape of the pulse, wherein the limit curves describe the change over time of a current variable, a...
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JP2020112553A |
To add an obstacle to desired data waveform over a wide baud rate range.A testing/measuring device 100 has a signal source, which has an obstacle generation part 116 for outputting an obstacle 114, and a waveform composition part 104. Th...
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JP2020088829A |
To provide a triangular wave output circuit capable of ensuring output waveform.A triangular wave output circuit 100 includes a first output circuit 11 and a second output circuit 12. The first output circuit 11 outputs a reference volta...
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JP6680661B2 |
To suppress variations in the output power of a pulse transmitter by generating an optimum envelopment signal without being affected by variations in process.An envelop circuit includes: a capacitor 1 provided between an output terminal ...
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JP6657962B2 |
To provide a semiconductor integrated device that can reduce the circuit scale.A semiconductor integrated device 1 includes a magnification setting circuit 1a, a V-I conversion circuit 1b, and a frequency generation circuit 1c. The magni...
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JP6638474B2 |
A signal output circuit includes a slope control circuit, a capacitor, a noise detector circuit and a fail-safe circuit. The slope control circuit charges and discharges the capacitor, the first terminal of which is connected to an outpu...
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JP6624873B2 |
Provided is an oscillation circuit that can limit a maximum value and a minimum value of a frequency even when some troubles are caused in a V/I conversion circuit. The oscillation circuit includes a current controlled oscillator configu...
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JP6613837B2 |
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JP6590397B2 |
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JP2019134280A |
To provide a CR oscillation circuit obtaining a high-precision frequency irrespective of the change of a power voltage and an environmental temperature and the dispersion of a circuit constant, in a short inspection time and low inspecti...
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JP6552908B2 |
An oscillator includes first, second, and third current sources, a resistor having first and second terminals, first and second capacitors each having first and second terminals, a switch circuit through which each of the current sources...
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JP6553628B2 |
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JP2019110382A |
To make rise transition time of voltage to be applied to a load different from fall transition time in a driving circuit.A driving circuit including a plurality of switching sections each having a gate terminal to which a gate signal for...
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JP6498481B2 |
To provide an oscillation circuit and an oscillation method capable of suppressing fluctuation in oscillation frequency to temperature fluctuation and power supply voltage fluctuation, and of improving accuracy of the oscillation frequen...
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JP6496550B2 |
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JP2019507534A |
Multiplexed multi-level converter amplifier. The converter is configured to generate a converter voltage. The converter voltage varies among multiple voltage levels. The multiplexer consists of at least four switches configured to produc...
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JP6433987B2 |
The system has: a set of at least two electric current generators, at least one capacitor and activation/deactivation devices for the electric current generators; the electric current generator being connected in parallel with one anothe...
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JP6389146B2 |
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JP2018082325A |
To provide a triangular wave generation circuit capable of suppressing fluctuation by an ambient temperature, of a maximum voltage and a minimum voltage of a generated triangular wave even in a case where a general-purpose operational am...
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JP6309093B2 |
Amplification of a signal by a small circuit size and reduction of a power are achieved. A current controlling current source unit 53 changes an outputting current based on a transition time setting signal tp. A current controlling curre...
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JP6310209B2 |
A pulse generation apparatus includes a delay pulse generator configured to generate a plurality of delay pulses, an amplitude modulator configured to modulate amplitudes of the plurality of delay pulses, and a Gaussian pulse generator c...
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JP6294651B2 |
To generate a reference waveform in which, irrespective of a slew rate of a waveform to be measured, distortion in the vicinity of a settling voltage is constant, and which has the same slew rate.A reference waveform generation circuit i...
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JP2018029246A |
To provide a signal generating device capable of generating multiple sinusoidal signals, having phase differences controlled with high accuracy, by simple configuration.A signal generating device A generating first and second sinusoidal ...
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JP6238436B2 |
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JP6228770B2 |
To provide a charge-discharge type oscillation circuit that is highly accurate and consumes less power even when an oscillation frequency is high.The charge-discharge type oscillation circuit has charge-discharge sections 11a, 11b, buffe...
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JP2017158011A |
To prevent a malfunction caused by noise superposed on an output terminal while suppressing expansion of circuit scale and rising of a minimum operation voltage.A signal output circuit 1 comprises an output circuit 6, a pseudo output cir...
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JP6185168B2 |
A thermal-type flow meter for representing a flow rate of air by the frequency of a periodic signal, wherein abnormalities in the waveform of an output signal due to frequency variation is prevented while high-frequency noise is suppress...
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JP6179111B2 |
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JP6153828B2 |
The objective of the invention is to provide an oscillation circuit that ensures oscillation frequency precision against parameter variations, such as temperature variations, even for a relatively high frequency band. The oscillation cir...
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JP6143190B2 |
A ramp signal generation circuit 21 comprises a plurality of unit circuits 22 1 to 22 N , each including a capacitor 26 having one end 26a held at a fixed potential and a current source 27 connected to the other end 26b of the capacitor ...
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