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Patent Searching and Data


Matches 901 - 950 out of 4,464

Document Document Title
JP2937888B2
A vertical deflection amplifier (20) of a video display apparatus includes first (Q1) and second (Q2) transistor amplifier output stages arranged in a totem-pole, push-pull configuration. A vertical-deflection winding (LV) is coupled to ...  
JPH11214971A
To provide a pulse generation circuit which suppresses the dispersion of a maximum duty factor owing to temperature and adjustment deviation, also realizes the reduction in a circuit area and a restraint in cost and has a function that r...  
JPH11197602A
To provide a piezo drive circuit for attempting miniaturization by achieving low electric power consumption and low exothermicity. A first switching element 2 and a first resistance element 4 which are in series connected, are put betwee...  
JPH11508049A
(57) A summary oscillator (40), the counter (41), the memory (42), the digital * analog converter (43), and the digital oscillator possessing a low pass filter (44) are indicated. Since this memory can memorize a composite signal directl...  
JPH11191725A
To allow the generating circuit to generate a constant amplitude (peak level) and to make a tilt angle of a triangular wave constant at all times even with frequency changes in input pulse signals. The generating circuit is provided with...  
JPH11177396A
To prevent the occurrence of noises from a constant voltage diode by providing on the power source-side of a switching element a constant voltage diode to determine the charging voltage of a capacitor. In a sawtooth wave generation circu...  
JPH11168325A
To effectively suppress distortion of an obtained signal waveform at the time of successively reading data stored in a memory means from there with a prescribed time interval, executing D/A conversion to the read data and obtaining the s...  
JPH11154849A
To provide a simplified circuit to continuously and automatically output a sawtooth wave required by an application circuit, such as a horizontal deflection control circuit and a high voltage control circuit. This device is provided with...  
JPH11155078A
To speedily converge the amplitude of a vertical deflection waveform to a preset amplitude control target in a transient state just after switching a vertical deflection frequency at the time of changing a picture display size and to imp...  
JP2903245B2
A driver stage (100) for a horizontal deflection output transistor (Q2) includes a transformer (T1) having a first winding (W1) coupled to an input signal (Ic1) at a horizontal deflection frequency, a second winding (W2) coupled across a...  
JP2902741B2  
JPH11112303A
To provide a VCO circuit which can obtain the oscillation of a high frequency and subtly controls the frequency by means of input voltage. A voltage current conversion part 10 converting input voltage Vin into current, a charge/discharge...  
JPH11112302A
To vary the oscillation frequency of an oscillation circuit, which generates an oscillation signal by inverting the output voltage according to the charging voltage of a capacitor, with simple constitution by controlling the charging cur...  
JP2883953B2
Oscillator in which a capacitor (1) is periodically charged and discharged. In accordance with the invention, two transistors (T3, T6) are connected parallel to the capacitor with their base-emitter paths in anti-parallel. When a voltage...  
JPH11102168A
To obtain a horizontal scanning pulse signal having a stable pulse width by controlling a pulse width with digital circuits to make the pulse width so as not to be affected directly by the variation of respective elements of a saw-tooth ...  
JP11097989A
To suppress the loss of an element, etc., controlled with pulses generated by the pulse generating device by preventing the pulse signal generating device from malfunctioning. A triangular wave generating circuit 2 generates a triangular...  
JP2872668B2
A vertical deflection amplifier (20) of a video display apparatus includes first (Q1) and second (Q2) transistor amplifier output stages arranged in a totem-pole, push-pull configuration. A vertical-deflection winding (LV) is coupled to ...  
JPH1153339A
To change an output pulse in real time and in response to a trigger signal without increasing the burden of an arithmetic processing unit by inputting a 1st pulse control signal produced based on the 1st pulse control data to a 1st doubl...  
JP2841085B2  
JPH10335993A
To provide a waveform-generating apparatus which can generate a predefined arbitrary signal waveform with high accuracy at a high speed and with a simple constitution. A waveform-generating apparatus is provided with a memory 12, which s...  
JP2838212B2  
JP2837172B2  
JPH10313235A
To provide a V/F conversion circuit where a control range of an input voltage is traced with the input voltage up to a higher frequency. An I/F conversion circuit is made up of a charging circuit that charges a capacitor with a current d...  
JP2826509B2  
JPH10285985A
To make it possible to easily perform trapezoidal-wave energization control sensorless drive even if the number of revolutions of a motor fluctuates, by controlling the operation of the motor using a trapezoidal-wave control current gene...  
JP2812744B2  
JP2812739B2  
JP2811176B2
The invention is related to an integrated semiconductor circuit comprising an output stage (30a) and a control circuit (30b). The output stage (30a) comprises several (e.g. four) pull-down output transistors (31-34), which are sequential...  
JPH10270943A
To provide a bit shift correction circuit that supplies a clock signal to a device having pluralities of ROMs and address counters connecting to the ROMs and corrects bit-shift automatically in the case that bit-shift takes place between...  
JP2795356B2
A signal delay circuit includes a driving circuit for driving an output signal with a voltage swing voltage between a supply voltage and a ground voltage. The signal delay circuit further includes a varactor load which is coupled to the ...  
JP2790883B2
A triangle wave generator (10) which is programmable, and which provides variable amplitude, frequency independent, triangle waves over a wide frequency bandwidth while employing a low voltage power source. The triangle wave generator (1...  
JPH10215152A
To arbitrarily set the waveform of a driving signal driving a switching element by feeding back/supplying the clock signal of a frequency which is set in accordance with the detection signal and the control signal of output voltage in a ...  
JPH10209822A
To stably output a triangular wave whose positive and negative waveforms are symmetrical by switching a reference voltage by an output voltage whose polarity is inverted when the output voltage of an inversion integrator which integrates...  
JPH10210774A
To provide a small pulse generator suitable for driving an electromechanical conversion element in which the number of components is decreased and power consumption is reduced. An oscillation circuit 2 is driven from a low voltage power ...  
JP2783964B2
PURPOSE: To obtain a timing signal generating circuit in which timing duration does not change even though the values of resistors and capacitors are changed. CONSTITUTION: A reference time generating circuit 2 is provided to output puls...  
JP2776515B2  
JP2772957B2  
JP2771158B2  
JPH10173492A
To miniaturize a circuit and to reduce the cost. A triangular wave generator 6 is provided with a triangular wave generating circuit 10 for generating triangular waves in which a predetermined upper limit voltage and a predetermined lowe...  
JPH10506514A
A wireless digital communication device having a pulse shaping network for pulse shaping digital signals before modulation. The pulse shaping network comprises a shift register to which data to be modulated are fed. Outputs of the shift ...  
JP2763393B2
An oscillating circuit (5, 6, 7) whose oscillation frequency can be varied with change of a constant current circuit output current I2, which in turn can be varied with change of a power source voltage Vcc, suitable for use in portable c...  
JP2764234B2
PURPOSE: To provide circuit configuration suitable for making the digital waveform generator for correcting the tube surface of a CRT into an MOSIC. CONSTITUTION: This digital waveform generator for correcting the tube surface of the CRT...  
JP2764140B2  
JPH10155269A
To improve a driver circuit operated with a charge pump voltage higher than that of a power unit. A pre-slewing circuit 72 made up of a bipolar transistor and a CMOS transistor is provided to reduce a gate voltage of a power unit at a po...  
JPH10146971A
To generate drive voltage pulses always having a constant rising period and a constant falling period even when peak voltage is changed by a relatively simple circuit constitution in a drive circuit of a printing head generating trapezoi...  
JP2758852B2
PURPOSE: To obtain a triangular wave oscillation circuit capable of being synchronized with an external clock signal and oscillating the triangular wave with a stable amplitude by providing 1st, 2nd comparators and a flip-flop and contro...  
JP2758594B2  
JPH10135742A
To generate a sine wave in a comparatively simple device constitution by calculating continuously the instantaneous value of a sine or cosine wave with a prescribed time difference and converting these calculated value into level signals...  
JP2755219B2
To make an oscillation circuit stable by providing a means compensating the fluctuation in an oscillating frequency based on temperature characteristics of a couple of transistors(TRs), components of an operational amplifier circuit, so ...  
JPH10126226A
To change the noise characteristics of the processor. The pulse processor is provided with a differentiation circuit 21 that differentiates an input signal, an integration circuit 24 that integrates an output signal of the differentiatio...  

Matches 901 - 950 out of 4,464