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JPH0536932U |
[purpose] Prevents overshoot of the output value of the ramp function. [Constitution] CPU1 determines whether the difference between the target value ref and the output value out is larger than the predetermined value Δr, and if YES, ad...
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JPH0530088B2 |
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JPH0583092A |
PURPOSE: To suppress the dispersion in the oscillating frequency and a tempera ture drift by employing a constant current source utilizing a resistor formed at an outside of an IC for charging/discharging an integration capacitor decidin...
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JPH0522402B2 |
The oscillation frequency of a variable frequency oscillator is swept by a sweep signal from a sweep signal generator and the oscillation frequency is compared with a preset sweep start frequency for detecting coincidence therebetween. U...
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JPH0575408A |
PURPOSE: To prevent distortion due to a characteristic of a Schottky diode from being caused in a transition waveform generated across a capacitor. CONSTITUTION: When an input voltage level changes between two levels, a capacitor C is ch...
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JPH0572988A |
PURPOSE: To obtain a saw-tooth wave, which has an invariably constant voltage amplitude even if a synchronizing pulse signal differs in cycle or pulse width and irrelevantly to variance in resistance value or capacitor value, as an outpu...
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JPH0563523A |
PURPOSE: To output a sawtooth wave by using a control signal outputted from a microcomputer so as to apply charge/discharge control to a charge/discharge capacitor. CONSTITUTION: When a pulse 1 whose duty ratio is 50% is inputted to an i...
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JPH0548406A |
PURPOSE: To realize the synchronous triangle wave generating circuit generating a triangle wave immediately synchronously with a clock whose phase is discontinuous or an intermittent clock. CONSTITUTION: The synchronous triangle wave gen...
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JPH0513423B2 |
A voltage of a sawtooth generator is present at a capacitor. This voltage is compared to a reference voltage. In case of a deviation, a controllable current source is connected in parallel to a constant current source charging the capaci...
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JPH0529890A |
PURPOSE: To obtain an increasing step wave and a decreasing step wave having various inclination and level with simple circuit configuration in response to a rising/falling of an optional control pulse. CONSTITUTION: A changeover circuit...
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JPH058607B2 |
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JPH055224B2 |
To reduce both the number of capacitors and the number of connecting terminals, the circuit comprises a sawtooth generator (1), a combining stage (2, 5-8), a multiplying circuit (12) and an amplifier (18). Applied to the combining stage ...
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JPH053933B2 |
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JPH0479484B2 |
A method for the digital slope control of the output signals of power amplifiers, as well as a power amplifier suitable for carrying out the method as described. One way of representing the actual slope value is via the number of clock p...
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JPH0478208B2 |
Apparatus for receiving a step-form input signal and providing a limited slew rate output signal in response thereto comprises an amplifier (26) that is operative to provide at its output terminal a current that is variable linearly betw...
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JPH04357771A |
PURPOSE: To improve the focus performance of the entire screen by providing the focus coil driving device with low power consumption obtaining the accurate focus current. CONSTITUTION: A pulse modulation/demodulation circuit 6 compares a...
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JPH0475689B2 |
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JPH0473803B2 |
A switching control circuit for power transistors controlling an inductive load. To avoid oversaturation of the transistor, causing excessive consumption and a switching difficulty on opening, said transistor is caused to operate at the ...
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JPH04334114A |
PURPOSE: To revise an oscillating frequency and a triangle waveform without replacing a timing resistor and a timing capacitor. CONSTITUTION: A charging current source section outputting a charge current to a timing capacitor CT is provi...
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JPH0472425B2 |
A technique for digitally synthesizing the amplitude modulation of one or more carrier signals with a random digital data signal is disclosed. Pursuant to the present invention, a memory unit (118) is addressed by a plurality of binary c...
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JPH0471211B2 |
An electrical waveform generator and a method for electrical waveform generation are provided which includes a central processing unit (13) to first provide sequential points of a selectable waveform in digital form and store them in dig...
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JPH04322514A |
PURPOSE: To obtain a triangle wave oscillation circuit whose oscillated waveform is subjected to optional DC, shift, whose circuit scale is not increased and whose output is connected to a next stage. CONSTITUTION: The 1st output termina...
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JPH0448005Y2 |
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JPH0470645B2 |
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JPH0445295Y2 |
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JPH04294629A |
PURPOSE: To control the phase of oscillation of an oscillator by temporarily stopping the oscillation of the oscillator and restarting it in a prescribed phase state. CONSTITUTION: This device is a circuit device for controlling the phas...
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JPH0462611B2 |
PURPOSE:To reduce the charging current of a capacitor and to incorporate the capacitor in an integrated circuit by charging the capacitor by using a fine current from a comparator with hysteresis characteristics and discharging the capac...
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JPH04267620A |
PURPOSE: To reduce the amplitude of a triangle wave and an error of an oscillating frequency by providing a peak hold circuit, a level shift circuit, a comparator, a set/reset latch circuit and a timer to the oscillation circuit. CONSTIT...
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JPH0459807B2 |
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JPH04263511A |
PURPOSE: To improve a frequency/voltage converting characteristic by improving accuracy for the constant current of a saw-tooth-wave generation circuit. CONSTITUTION: A hold voltage (signal line 207) after frequency/voltage conversion is...
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JPH04242314A |
PURPOSE: To offer a control circuit capable of outputting a rectangular pulse whose frequency, on-width and off-width are all easily set. CONSTITUTION: The voltage of a DC power supply 4 and the voltage of a capacitor C1 are compared by ...
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JPH04235357A |
PURPOSE: To develop a testing apparatus because there is no suitable testing apparatus even though it is specified that a load-dump test should be conducted in the field test of vehicle-mounted electronic devices in the automobile indust...
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JPH04229774A |
PURPOSE: To provide a parabolic waveform generator, which is sensible to the disturbance of a vertical frequency caused in a switching mode vertical deflection circuit and the disturbance caused by channel switching. CONSTITUTION: This p...
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JPH0451091B2 |
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JPH0447883B2 |
Circuit and method for providing a D.C. controlled adjustable ramp signal which maintains a predetermined ramping period for respectively adjusted optimum signal levels within the operating range. An example of a circuit of the invention...
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JPH0447882B2 |
A ramp generator suitable for controlling bias or erase heads in magnetic recording includes an integrator (40) which produces a relatively slow ramp signal at values associated with the non-linear region of the recording characteristic ...
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JPH04213277A |
PURPOSE: To realize the switching circuit suitable for a horizontal deflection circuit handling a high horizontal deflection frequency by decreasing a storage time of a transistor(TR) so as to improve the switching speed through simple c...
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JPH0446502B2 |
1. A television receiver with a switching network part and a horizontal sweep circuit, in which the operating voltages for the television receiver are obtained by periodically closing and opening an electronic switch (6) which is in seri...
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JPH04207354A |
PURPOSE: To obtain a sawtooth wave used for an input of a voltage feedback amplifier by setting a sawtooth wave level to zero for a blanking period. CONSTITUTION: A sawtooth wave generating circuit 1 outputs a sawtooth wave and the sawto...
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JPH0430814Y2 |
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JPH0430813Y2 |
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JPH0445029B2 |
A field deflection circuit for use in a picture display device, comprising an amplifier (4) to whose output the series network of a field deflection coil (1), a separating capacitor (2) and a negative feedback resistor (3) is coupled. A ...
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JPH0480130U |
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JPH04186912A |
PURPOSE: To linearly execute the rise and the fall, and to change a clamp voltage to change the rise/fall speed (inclination) by clamping an inversion input terminal of an operational amplifier of a voltage output amplifier to a small vo...
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JPH0435793B2 |
An integrator circuit utilizing an operational amplifier (19) and switched capacitor elements (11.13 and 16) in place of resistors in such a manner as to provide compensation for voltage offsets present in the operational amplifier resul...
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JPH0435772B2 |
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JPH0435771B2 |
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JPH0433390B2 |
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JPH0433193B2 |
A horizontal deflection circuit for performing horizontal sweep operation of a CRT includes a saturable reactor having controlled windings connected through the primary winding of a flyback transformer to the CRT horizontal deflection co...
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JPH0432471B2 |
This invention provides a circuit for providing as an output voltage signal (S2) the differential of the voltage of an input signal (S1) on an input terminal, wherein the circuit includes an input capacitor (C1) for converting the input ...
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