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Document Title |
JPWO2010044488A1 |
The operation of the electronic circuit and the application timing of the noise impulse are not linked. Therefore, the impulse can be applied only stochastically, and there is a problem that the malfunction mechanism cannot be dealt with...
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JP4882474B2 |
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JP4871003B2 |
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JP2012023431A |
To provide a sine wave generating circuit which generates a highly accurate sine wave with a relatively simple circuit.The sine wave generating circuit comprises a clock generation circuit 10 which generates clocks C1 to Ck of 2n-1 phase...
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JP4849430B2 |
A circuit for driving capacitive loads in a highly efficient manner. In one embodiment, a drive portion is connected to at least one end of a capacitive electric load being applied a voltage waveform. The embodiment further comprises a s...
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JP2011259167A |
To provide a triangular wave generator generating multiple triangular waves with high frequency and high accuracy that synchronize each other and have different voltage ranges.A first charging/discharging circuit includes: a first curren...
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JP4835009B2 |
An oscillator circuit is disclosed that includes a first oscillation part configured to output a first oscillation output by charging and discharging a first capacitor, and a second oscillation part configured to output a second oscillat...
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JP4838074B2 |
Methods of manipulating pulses of ultrasonic energy for use with an ophthalmic surgical device are provided. In particular, methods are described for generating multisegment ultrasound pulses (2100) having a first rectangular pulse segme...
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JP2011250412A |
To provide an apparatus and method for generating a ramp waveform.A ramp waveform generating apparatus generates a reference waveform by using an input signal and generates a driving control signal for turning on and off a switch having ...
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JP4833755B2 |
An oscillator circuit having a relatively simple circuit structure while enabling full swing with low power consumption includes an oscillation core block, a voltage restriction block, and a differential output block. Drain terminals of ...
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JP4829724B2 |
To provide an oscillation circuit which has high frequency stability, and is easily designed. The oscillation circuit comprises: a first charge/discharge circuit having a first current source for supplying a current I in proportion to po...
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JP4824599B2 |
A charging and discharging circuit of a triangular wave oscillation circuit includes an inverter circuit; a discharging reference potential generating circuit; a first NMOS transistor having a drain connected with a connection point betw...
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JP4828560B2 |
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JP4828561B2 |
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JP4823825B2 |
A charging/discharging circuit (32) charges or discharges a capacitor (C2) having an end the potential at which is fixed. A first comparator (COMP1) compares an output voltage (Vout) of the capacitor (C2) with a first threshold voltage (...
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JP4819400B2 |
A testing circuit measures a center frequency of a clock signal outputted by a clock generator. The clock generator has a frequency modulator capable of (1) performing a frequency sampling accurately for the duration of modulation freque...
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JP4817960B2 |
An oscillator circuit (30) includes a capacitor (35), a first constant current source (33) electrically couplable to an end of the capacitor, a second constant current source (34) electrically ccuplable to the end of the capacitor (35), ...
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JP2011211509A |
To provide a PWM signal generating circuit reduced in power consumption and high in accuracy.A counter 2 generates a pulse width of integral times as large as one period of a clock signal according to the upper bit of a digital input sig...
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JP4794542B2 |
Provided is a multilevel voltage driving device and system. The multilevel voltage driving device comprises a level converter, which is provided with an AC signal input terminal for inputting an AC signal, a high level output terminal fo...
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JP2011188641A |
To provide a voltage generating circuit that generates a step voltage and a plurality of constant voltages without executing charging/discharging of a load capacity.The voltage generating circuit includes (N-1) capacitors (N is an intege...
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JP2011160076A |
To provide a triangular wave signal generation circuit in which propagation delay in a closed loop comprising an integration circuit and a Schmitt trigger circuit is eliminated.The triangular wave signal generation circuit includes: the ...
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JP4750582B2 |
In a triangular-wave generating apparatus including an output terminal adapted to output an output voltage, an incorporated capacitor connected to the output terminal, a first variable current source adapted to charge the incorporated ca...
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JP2011147080A |
To provide a pulse generator, along with a pulse generation method, in which the startup voltage of a pulse can be arbitrarily set.In a standard pulse generator, a charging power supply 11, a capacitor 12 and a mercury relay 13 are conne...
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JP4732007B2 |
There is provided a waveform generator that generates a waveform. The waveform generator includes: a lamp waveform generating section that generates a lamp wave of which a signal value linearly changes for a predetermined period; a squar...
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JP2011130393A |
To solve the problem in a conventional system that stability varies depending upon comparison accuracy since it compares a voltage value of a certain waveform with a different threshold.A trapezoidal waveform generated by a control wavef...
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JP2011517898A |
The present application discloses trapezoidal fire pulse generating methods and devices. According to the devices and methods of the present application, the voltage value of the positive DC control voltage signal, the voltage value of t...
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JP2011517898T |
The trapezoid fire pulse generation method and a device which are indicated by the present invention, It is based on the trapezoid fire pulse parameter value outputted, and is a voltage value of the positive direct-current voltage contro...
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JP4704260B2 |
A PWM circuit includes a counter, a cycle register, a cycle detector, a pulse width register, a pulse width detector, an additional pulse width register, a voltage generator, a selector, and a voltage controller. The voltage controller c...
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JP4696920B2 |
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JPWO2009090703A1 |
The lamp wave output circuit includes a lamp wave generation circuit 1 that generates a lamp wave, and a low-pass filter 2 with a variable cutoff frequency that receives the lamp wave. The low-pass filter 2 operates at the first cutoff f...
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JP4684112B2 |
An accurate intermittent triangular wave signal without waveform distortion is generated by a triangular wave generation circuit 1 including a rectangular wave generation circuit 111 for generating an intermittent rectangular wave signal...
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JP4685602B2 |
A first comparator compares an output voltage Vout appearing at a capacitor with a maximum threshold voltage Vmax. A second comparator compares the output voltage Vout with a minimum threshold voltage Vmin. An edge detection circuit dete...
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JP2011087064A |
To obtain a detector which can be provided at low cost and is high in effect for reducing power consumption.A control circuit 12 controls switching between an operation mode and a stop mode of a sensor 11, and operates by a clock signal ...
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JP2011082844A |
To provide a technology for dulling a digital signal waveform more easily than the prior arts.A signal waveform-generating method includes: a D/A conversion step of outputting an analog signal waveform using a D/A converter 140; a measur...
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JP2011055477A |
To provide an oscillator circuit highly accurately sweeping a frequency.In an oscillator circuit 100 with a sweeping function, a first counter 10 counts a reference clock REFCLK a number of times corresponding to a digital first setting ...
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JP2011035627A |
To provide a ramp wave generation circuit capable of outputting ramp wave with fixed inclination, even when a capacitor with nonlinear C-V characteristics is used for an integration circuit.For the integration circuit 2 to which MOS capa...
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JP4622085B2 |
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JP4622306B2 |
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JP4622875B2 |
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JP4614218B2 |
A driving apparatus for receiving an input voltage at an input terminal and generating an output voltage at an output terminal. The apparatus includes an output buffer electrically coupled between the input and output terminal, and an op...
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JP4610608B2 |
Widening the frequency range without increasing the power consumption. Current circuits (1a) and (1b) output charge current based on control current. Capacitors (C1) and (C2) are provided in association with the current circuits (1a) and...
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JP2010287264A |
To generate a laser drive signal in which undershoot is reduced by a simple constitution.A pulse signal generator 41 of a laser drive section 31 synthesizes a signal so that the rising of an additional rectangular wave SAD whose voltage ...
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JP2010283628A |
To provide a synchronization signal generation circuit generating synchronization signals synchronized with PWM (pulse width modulated) signals from the PWM signals.A triangular wave generation circuit 101 is a means for generating trian...
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JP4592181B2 |
The invention includes: a capacitor 11 for generating ramp wave; a constant current source 10 for supplying constant current to the capacitor 11 for generating ramp wave; voltage fixing means for charging the capacitor 11 for generating ...
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JP2010268408A |
To provide a circuit for generating sawtooth waves by charging and discharging a capacitor, which reduces a bottom voltage and variations of frequencies, which are caused by operation delay of a feedback circuit.The sawtooth wave generat...
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JP2010245906A |
To provide a triangular wave generating circuit which does not vary an amplitude of a triangular wave signal and which is operable even if a clock signal is stopped, and to provide an integrated circuit device and an electronic apparatus...
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JP4571905B2 |
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JP4571122B2 |
A signal generator ( 1 ) for generating a square waveform analog voltage output signal comprises an on-chip DAC ( 12 ) which outputs the analog voltage signal on an output terminal ( 5 ). On-chip first and second programmable registers (...
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JP4560552B2 |
Disclosed is a novel design of a fully integrated UWB transmitter. The transmitter includes a pulse generator, a pulse modulator, and an ultra-wideband drive amplifier. A new low voltage low power pulse generator circuit is disclosed whi...
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JP2010226363A |
To arrange a current value of sink and a current value of discharge. Each of first to third unit circuits includes first P channel transistors (P11, P21, and P31), second P channel transistors (P12, P22, and P32), first N channel transis...
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