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JP2569506B2 |
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JP2565174B2 |
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JP2564431B2 |
PURPOSE: To outputs a secure staircase wave by making good use of a current mirror. CONSTITUTION: The staircase wave generating circuit consists of current mirror switching parts 10 to 60 consisting of P type current mirrors and N type c...
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JP2563477B2 |
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JP2561258B2 |
PURPOSE:To enhance mounting efficiency, by defining the definite pattern of a wave form by macro data and storing said macro data and the number of the development steps of the macro data. CONSTITUTION:After a selection signal iSEL is se...
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JP2557696B2 |
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JP2558735B2 |
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JPH08307248A |
PURPOSE: To obtain a synchronizing clock signal stably by providing a means generating a triangle wave synchronously with a reference clock signal, a means comparing the wave with a reference voltage, a means measuring a phase of the syn...
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JPH08307216A |
PURPOSE: To generate a timing pulse advanced in phase from an input pulse by a prescribed time. CONSTITUTION: A switch 9 is turned off while an input pulse A is in a high level and a capacitor 7 is charged by a constant current from a vo...
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JPH08293767A |
PURPOSE: To enable a stable synchronous operation without difference in time to reach a waveheight value by matching the waveheight values of respective triangular wave generating circuits when synchronously operating plural triangular w...
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JPH08293766A |
PURPOSE: To provide a triangular wave generating circuit with which an accurate triangular wave is generated. CONSTITUTION: A reference voltage VH set at the node of resistors R33 and R34 is guided through transistors Q45 and Q46 to a po...
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JPH08279734A |
PURPOSE: To provide a charge pump circuit in which a charging/discharging current ratio can be freely set. CONSTITUTION: A switch 3 is changed over by a switching pulse SWP, a capacitor 4 is charged by a current mirror circuit 1 in respo...
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JP2545071B2 |
A circuit arrangement for generating a sawtooth-shaped signal for the field deflection in a picture display device with an amplitude which is substantially independent of the field frequency is disclosed. The value of the sawtooth-shaped...
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JP2544720B2 |
An apparatus for generating a periodic resonant pulse voltage across an inductance (LH1,LH2) includes first (Q1) and second (02) switches coupled together in a series cascode arrangement. The cascode arrangement applies a first voltage t...
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JP2535851B2 |
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JPH08242150A |
PURPOSE: To provide a saw tooth voltage generation circuit, a parabolic voltage generation circuit and a monitoring device without using a time constant circuit. CONSTITUTION: This saw tooth voltage generation circuit is provided with RO...
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JPH08237511A |
PURPOSE: To prevent an overcurrent from flowing to the transistor of a horizontal deflection circuit in the case of switching the frequency of a horizontal (H) synchronizing signal by lowering a drive power supply voltage faster than the...
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JP2533109B2 |
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JP2532268B2 |
A deflection generator of a television receiver is coupled to a deflection winding for generating scanning current during a deflection cycle. The generator includes a retrace capacitor coupled to the deflection winding for forming a retr...
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JP2532228B2 |
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JP2530709B2 |
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JP2531632B2 |
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JPH08223929A |
PURPOSE: To correct the cycle of positive sine waves and negative sine waves to output triangular waves and a phase difference by a method wherein an analog switch is controlled at the cycle of the ON/OFF operation of a binary counter an...
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JPH08223435A |
To protect a transistor against a high voltage which can be instantaneously generated at the time of power on/off or mode conversion. The proposed transistor protecting circuit of a monitor includes a driving transformer 10 which generat...
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JP2524386B2 |
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JP2521374B2 |
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JPH08186476A |
PURPOSE: To realize the purse power source which shortens the pulse to be supplied to a load. CONSTITUTION: First ana second capacitors C01 and C02 charged in parallel are connected in series by making a switch GW, and the pulse is compr...
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JPH08181579A |
PURPOSE: To drive a horizontal deflection coil or the like for television screen with a current of a smooth waveform not affected by a gate voltage of a drive transistor(TR). CONSTITUTION: The coil drive circuit comprising a voltage reso...
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JPH08181578A |
PURPOSE: To eliminate the effect of fluctuation on an amplitude of an output square wave signal in a circuit parameter attended with dispersion in the manufacture stage or fluctuation in the ambient temperature in use. CONSTITUTION: The ...
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JP2510116B2 |
PURPOSE: To obtain a three-phase rectifier which facilitates suppression of the distortion of an input current waveform without employing a large size input transformer. CONSTITUTION: A three-phase full-wave diode rectifier 5 is connecte...
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JPH08162913A |
PURPOSE: To hold the continuity of phase data and to perform acceleration when phase change amount data are switched by frequency changeover for the phase accumulator of multiple bits. CONSTITUTION: At the time of frequency changeover, t...
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JPH08139574A |
PURPOSE: To fix the output amplitude of sawtooth wave signals by defining comparator output as the control signals of an analog switch, defining the sawtooth wave signals as one input of the analog switch and grounding the other input. C...
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JPH08130444A |
PURPOSE: To provide the ramp generator of a small integrated area by arranging N-pieces of transistors of Darlington configuration, which are cascade-connected and H+k-pieces of diodes which are connected in series and which are directly...
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JPH08126306A |
PURPOSE: To remove beat noise which is produced by the asynchronization of the reference clock of an external circuit and noise which cannot be removed by a smoothing circuit by synchronizing the oscillation of an oscillator with the ref...
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JPH08111633A |
PURPOSE: To obtain a digital signal processor which needs not much information amount for generating a sine wave. CONSTITUTION: This processor is provided with a memory 5 being a storage means storing the information for forming a triang...
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JPH0870240A |
PURPOSE: To generate an accurate waveform signal by connecting a compensation element between a high voltage setting section to set a peak value of a generated waveform and the ground of the substrate in the case where a waveform generat...
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JPH0822019B2 |
A timbase circuit is desribed for providing a horizontal drive correction waveform to correct for pincushion distortion in which a parabolic correction current is derived by squaring (4) a current proportional to the difference between t...
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JPH0817448B2 |
A base drive circuit for a flyback output transistor has an inductive element having series connected coils for generating a linear ramping current to the base electrode of the output transistor in response to an input pulse. A high, alm...
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JPH0817447B2 |
A horizontal deflection circuit for controlling the horizontal deflection of an electron beam in a cathode ray tube used, for example, in a video display. The circuit uses a plurality of MOSFET transistors, (11A,11B,11C), which are switc...
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JPH08368U |
[Purpose] Provided is a frequency generator for an NMR apparatus capable of generating a high frequency signal of an arbitrary frequency and phase. [Constitution] The frequency generator 5 includes, for example, a memory (ROM) 13 in whic...
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JPH0846458A |
PURPOSE: To provide a power amplifier which is capable of increasing the dynamic range of an output signal by providing a min. number of capacitors for bootstrapping. CONSTITUTION: This device is provided with a selection circuit 14 whic...
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JPH0832425A |
PURPOSE: To provide a data read timing variable circuit changing a data read timing by changing a bias given to an identification clock signal when the data read circuit reads a data signal by using the identification clock signal especi...
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JPH088474B2 |
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JPH07336712A |
PURPOSE: To obtain a waveform processing circuit in which deterioration in accuracy of an output signal is prevented even when a low drive voltage is adopted. CONSTITUTION: A 1/2 division processing circuit 7 slices a ramp waveform at a ...
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JPH07121075B2 |
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JPH07118777B2 |
A transformer coupled amplifier drive circuit (40,60) and method especially suited for providing a saw-tooth current waveform to an inductive load (32) for horizontal deflection applications in CRT monitors and the like are described. Wh...
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JPH07322633A |
PURPOSE: To generate AC voltage having a small amount of distortion and high efficiency by a simple constitution by successively changing over batteries for a DC power supply consisting of a plurality of batteries connected in series. CO...
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JPH0750791Y2 |
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JPH0749864Y2 |
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JPH0799859B2 |
The invention relates to a deflectional system of a television set comprising a power transistor and a driving circuit which supplies a deflection current increasing in ramp-shaped manner to a deflection coil. The driving circuit is peri...
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