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JP2000324356A |
To obtain a parabolic waveform generator that can apply a parabolic waveform with an ideal form to an FBT. The parabolic signal generator is characterized in correcting a position of a bottom of a parabolic wave, a degree and a gain of a...
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JP3108834B2 |
PURPOSE: To generate sawtooth waves for deflection without requiring a large capacitance value by constituting a circuit of a D/A converter suited to be made into a semiconductor integrated circuit, a counter, a register and a variable g...
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JP3102432B2 |
In a video display apparatus having a service mode capability, a vertical deflection circuit (20) includes a vertical deflection winding (1 ) coupled to a DC blocking capacitor (CV). An output stage (21) is coupled to the vertical deflec...
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JP2000286682A |
To provide a circuit for generating triangular wave digital data in which the offset data, amplitude data and repetitive frequency data can be easily set by subtracting the reference clock pulse from the number of overflow stages through...
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JP2000512404A |
An apparatus for controlling an electrical appliance coupled with an output terminus and configured to operate in response to an alternating input signal, such as input AC power. The apparatus comprises a reference signal generator for r...
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JP3089021B2 |
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JP2000244760A |
To accurately adjust vertical width, a raster vertical position and vertical linearity with the small number of components. This generator is provided with a storage means 22 for storing parameters for controlling the vertical width of r...
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JP3081255B2 |
A character generator comprises a phase-coupled clock signal generator which is implemented as a start-stop oscillator (1) to which a line signal is applied. The clock frequency is dependent on an adjusting value (F). For adjusting and m...
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JP2000232341A |
To generate a precise slope. A slope generator 100 generates a slope voltage at an output node by charging/discharging of a capacitor (C-ramp) connected to an output node 25. Thus, a first current switch 40 connected to the output node s...
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JP3073408B2 |
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JP3068710B2 |
A horizontal deflection circuit for a CRT supplies an exciting current in such a way that flyback voltages including both a positive voltage and a negative voltage as components are generated in horizontal deflection coils of a horizonta...
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JP3069380B2 |
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JP3062161B2 |
To provide a test waveform generating device, capable of generating analogue waveforms including noise, and especially reflection components and accent components by the addition of a small-scale inexpensive test waveform generating circ...
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JP3036744B2 |
In a deflection circuit that operates in any scan frequency selected from a plurality of frequencies, the supply voltage that is DC-coupled to a first terminal of a trace capacitor is increased when the scan frequency increases. The defl...
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JP2000068795A |
To output a triangular wave oscillating signal with a stable amplitude even in a high frequency. An oscillation circuit 20 is the one for outputting the inter- terminal voltage of a capacity CT to be charged/discharged as an output signa...
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JP3007268B2 |
A sawtooth generator generates a sawtooth wave having a high response speed and good linearity with a simple arrangement in converting a change in phase of an input signal into a linear change in level. A signal interpolating apparatus u...
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JP2000036730A |
To provide a complementary delay pulse generating circuit, which greatly reduces the effects of variation of an inputted triangular wave and supplies high reliability complementary pulses. This circuit is equipped with a 1st comparing ci...
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JP3003603B2 |
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...
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JP2000022506A |
To perform trapezoidal waveform output processing by using an inexpensive analog control circuit capable of obtaining the output waveform with linear gradient without raising the output to a saturation voltage. This circuit is provided w...
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JP2999201B2 |
Such voltages are frequently necessary for generating correction currents which have to have the same phase as the fundamental wave of another voltage. The use of a filter circuit or synchronised oscillator circuit is known but this requ...
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JP2999781B2 |
PURPOSE:To make an oscillating output signal stable by comparing the voltage of a capacitor with a larger reference voltage to control the operation of a 2nd constant current source and comparing the voltage of the capacitor with a small...
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JP2996992B2 |
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JP2994743B2 |
A method and apparatus for triggering and measuring electrochemiluminescent phenomena using a voltage waveform applied at the voltammetric working electrode which improves the precision and accuracy of measurements. This waveform has a d...
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JP2991300B2 |
PURPOSE:To prevent the deformation of a boost voltage from occurring and to attain high speed transmission by preventing an N well from becoming the load capacity of a boost voltage transmission line by biasing the N well to a voltage ex...
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JPH11514818A |
A horizontal deflection circuit includes circuitry for protecting the horizontal output transistor from failure due to an over-current condition. The circuitry includes a current detector for detecting the current in the collector-emitte...
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JP2986973B2 |
A sawtooth generator for e.g. an oscilloscope is disclosed with an accurate DC voltage control after flyback of the sawtooth voltage. The sawtooth generator comprises a balance circuit (DA) in the control loop and an error amplifier (CP)...
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JPH11330932A |
To obtain a pulse-width modulation output having narrow pulse width. First and second triangular wave generating circuits 100 and 200 generate triangular waves TRI1 and TRI2 which are different 180° in the phase with each other and have...
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JP2982825B2 |
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JP2979643B2 |
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JP2978856B2 |
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 ...
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JP2977026B2 |
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JP2966464B2 |
PURPOSE:To enable generation of multivalue waveforms of high speed and large amplitude by constructing the title circuit of a plurality of voltage sources outputting voltages being different from one another, a diode switch circuit and a...
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JP2968292B2 |
The invention relates to a frequency synthesis device for generating periodic electrical oscillations with optionally adjustable frequency, the phase coherence being retained after changing and resetting the frequency to an arbitrary val...
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JPH11511932A |
A focusing waveform (Vf) is obtained by first generating (2) two intersecting triangular waveforms of opposite phase and half the deflection frequency. Subsequently, the difference between these two triangular waveforms is multiplied by ...
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JP2959136B2 |
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JP2960120B2 |
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JP2957127B2 |
A DAC (84) converts a sequence of digital codewords (12) into an approximately piecewise linear analog waveform (50, 106) that follows rising and falling edges (76, 78; 94, 96) between plateau levels (82; 98). The DAC (84) processes, in ...
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JP2956124B2 |
PURPOSE:To make an output waveform continuous by inputting desired waveform data or reference data equivalent to 0V from a data selector corresponding to each D/A converter, converting the data into analog signals, adding the analog sign...
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JPH11261381A |
To improve reliability and convenience, to reduce cost and to realize multiple functions by outputting an up pulse from a first circuit and outputting a down pulse from a fourth gate circuit. In a voltage control oscillation part 5, four...
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JP2947750B2 |
A pulse generating circuit for use in a semiconductor memory device is triggered by a transition of an input logic signal, to provide an output pulse having a predetermined pulse width or period. Feedback from the output pulse is used to...
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JP2944479B2 |
To change a square wave into a desired output waveform without changing the circuit configuration. A square wave signal S1 is converted into a triangular wave by an integration circuit 1, and the voltage of the triangular waves are compa...
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JPH11234519A |
To provide the image processing unit that continuously control a period and an amplitude of a triangle wave and that provides a flexible pulse width modulation output to attain high image quality. A D/A converter means 11 of the unit 10 ...
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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 ...
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JPH11508049A |
PCT No. PCT/FR96/00946 Sec. 371 Date Oct. 20, 1997 Sec. 102(e) Date Oct. 20, 1997 PCT Filed Jun. 19, 1996 PCT Pub. No. WO97/01136 PCT Pub. Date Jan. 9, 1997The present invention relates to a digital oscillator comprising an oscillator (4...
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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...
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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...
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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...
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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...
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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...
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JP2902741B2 |
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