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JPH06326565A |
PURPOSE: To generate a lamp waveform which is not affected by the variance of a circuit constitution element and in which an inclination and amplitude are stable by holding lamp waveform termination voltage to be generated to be constant...
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JPH0695828B2 |
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JPH0693613B2 |
A resistor is connected to an input portion of a CMOS inverter. An input of the CMOS inverter is affected by a time constant of an RC circuit comprising the resistor and gate stray capacitance of the CMOS inverter. In addition, there is ...
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JPH0691430B2 |
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JPH06315271A |
PURPOSE: To reduce costs of inverter PWM carrier signal generators by using a circuit configuration consisting mainly of counters. CONSTITUTION: A circuit comprises an UP/DOWN counter 1 that repeats add- subtract arithsmetic operation at...
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JPH06310997A |
PURPOSE: To attain a high speed operation, and to generate a triangular wave with excellent linearity by generating a triangular wave in charging/discharging a capacitor by an operational transconductance amplifier, and generating the tr...
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JPH0682399B2 |
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JPH0683193B2 |
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JPH0683067B2 |
An apparatus that generates a cyclic waveform of optional multiples of clock frequency in a digital signal processing. The apparatus accumulates a data string having a predetermined average value and a constant with an accumulating circu...
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JPH06291621A |
PURPOSE: To utilize a clock frequency at a much higher frequency by outputting data as they are until the data of the most significant bit of the count value of an inreversible counter are changed, inverting and outputting the data after...
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JPH06291622A |
PURPOSE: To convert an output to an ideal saw-tooth-wave by switching a time constant with the filter circuit of the saw-tooth-wave generating circuit corresponding to the output signal of an n-bit counter circuit. CONSTITUTION: When the...
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JPH06282338A |
PURPOSE: To attain a ramp voltage generating circuit having a highly accurate output signal delaying function constituted as a monolithic IC. CONSTITUTION: A constant current circuit is constituted of a reference voltage generating circu...
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JPH0675079B2 |
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JPH06244688A |
PURPOSE: To obtain a phase shift circuit in which several clock signals for a digital circuit can be generated from a single clock input signal. CONSTITUTION: A generator for generating a controlled delayed digital clock signal includes ...
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JPH0669135B2 |
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JPH0666665B2 |
A digital time base with analog interpolation provides a variable reference voltage to assure that the period of an analog ramp between a zero value and a maximum value is equal to the time interval between range clock pulses. A time bas...
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JPH06224705A |
PURPOSE: To eliminate a delay a time when the oscillation is started by providing a forced charge circuit forcibly charging a voltage of a capacitor to be reached between a 1st reference voltage and a 2nd reference voltage when the oscil...
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JPH06222729A |
PURPOSE: To realize a sawtooth generation circuit synchronized with an input signal of which period is varied using a capacitor which can be made in a integrated circuit by giving a function which subtracts quantity of electron charges o...
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JPH06216722A |
PURPOSE: To reduce a variance in an oscillation frequency due to the variance in a resistance value of each resistor for constituting the circuit, in the triangular wave oscillating circuit, especially, the triangular wave oscillating ci...
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JPH0659022B2 |
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JPH0659020B2 |
PURPOSE:To obtain an oscillation output with a stable frequency against a power supply voltage and temperature by supplying a voltage of a resistor deciding the oscillating frequency and a reference voltage of a voltage comparator decidi...
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JPH0628854Y2 |
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JPH0659024B2 |
A pulse generator includes a capacitor having one end held at a reference potential and the other end, a first inverter having a threshold voltage and its input portion connected to the other end of the capacitor, a control circuit produ...
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JPH0656944B2 |
A step waveform generator includes a cup and bucket circuit in which charging and discharging a cup capacitor (C1) with predetermined units of charge is achieved, in response to a train of pulses supplied to its input terminal (1), by me...
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JPH06209241A |
PURPOSE: To generate a doubled oscillation frequency signal without changing a difference voltage between a high level and a low level, the value of a capacitor, and charge and discharge currents by adding a simple circuit block. CONSTIT...
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JPH0654862B2 |
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JPH06196976A |
PURPOSE: To provide a signal generator capable of generating a linear triangular wave having small power consumption by a simple constitution. CONSTITUTION: The signal generator is provided with a charging/discharging current terminal 36...
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JPH06196977A |
PURPOSE: To provide a voltage controlling oscillation circuit capable of obtaining stable oscillation even when power supply voltage or temperature is changed. CONSTITUTION: The voltage controlling oscillation circuit has a current sourc...
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JPH0652860B2 |
PURPOSE:To attain the oscillation at a high frequency by making a current flowing to a capacitor at the discharge constant depending on a resistance for adjusting the oscillating frequency by providing a current mirror circuit, eliminati...
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JPH0650425B2 |
A vertical scan circuit for a display is described which allows automatic picture height and centering. The deflection voltages at the start and end of active video time, are stored by capacitors fed via switches activated by signal puls...
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JPH06181429A |
PURPOSE: To provide a sawtooth wave oscillator, in which an oscillation frequency is not affected by means of an error in the discharge period of a first capacitor at all. CONSTITUTION: The sawtooth wave oscillator is provided with the f...
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JPH0648439B2 |
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JPH0646683B2 |
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JPH0646685B2 |
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JPH0646684B2 |
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JPH0642621B2 |
PURPOSE:To eliminate the need of a high resistance and to facilitate the constant design by generating two comparison voltages by dividing a constant-voltage by a resistance, discharging a capacitor by a constant-current of some constant...
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JPH0642623B2 |
PURPOSE:To reduce influence on an oscillation frequency due to the fluctuation of a power source voltage and temperature, by connecting an inverter of full-return equivalent to two inverters which constitute a comparator limiting the upp...
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JPH06152248A |
PURPOSE: To provide the digital AC generator capable of finely controlling the output frequency of an AC waveform. CONSTITUTION: This generator consists of a clock oscillator 1 consisting of a VCO, an AC waveform data part 2 where oscill...
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JPH0635991B2 |
A timebase generator includes a transistor switch performing a sweep gate function, alternately providing a current path for retrace and then disconnecting such current path to allow generation of a time base ramp. The bias current deliv...
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JPH06104702A |
PURPOSE: To prevent the secondary distortion of the circuit set at the following stage of an FM modulator and to reduce the occurrence of moires by securing the equality between the charging and discharging currents of a capacitor throug...
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JPH0697784A |
PURPOSE: To suppress unwanted radiation generated by the transmission of rectangular pulses to be as small as possible by generating pulses provided with the prescribed gradient of edge rise and fall and a round state transition part fro...
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JPH0685625A |
PURPOSE: To provide a voltage control oscillator which can output the stable oscillation frequency regardless of the change of the power voltage and the temperature and the production variance. CONSTITUTION: The charging and discharging ...
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JPH0611623Y2 |
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JPH0670185A |
PURPOSE: To easily change the length or inclination of the retrace part of the vertical saw-tooth wave signal by inputting digital data. CONSTITUTION: A D/A converter 16 D/A converts a digital data input supplied from a microprocessor 17...
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JPH0661803A |
PURPOSE: To provide a charge pump with which a buffer stage and a capacitor terminal requiring no negative power voltage are grounded by using a discharging switch which opens and closes in response to the 1st and 2nd value of a periodic...
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JPH0614691B2 |
The current which passes through the vertical deflector of a transistorized color television receiver is produced by a circuit comprising an active switch controlled and modulated at the line frequency and supplied by line retrace pulses...
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JPH0645878A |
PURPOSE: To provide an inexpensive new voltage-controlled oscillator (VOC), without being affected by noise-inducted jitters. CONSTITUTION: This complete differential relation type VCO 3 includes an operational transconductance amplifier...
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JPH0645885A |
PURPOSE: To provide an electric circuit, provided with an oscillation circuit in which oscillation of an undesired signal due to a transient voltage is reduced. CONSTITUTION: An oscillation circuit has two voltage sources 22a, 22b which ...
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JPH0645884A |
PURPOSE: To shorten the rise time of a waveform as much as possible and to prevent the variance of the low level of the waveform. CONSTITUTION: This saw tooth wave oscillating circuit is provided with a first comparator 6 which detects t...
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JPH06501557A |
In a preferred embodiment, an inductor excited by a square-wave alternating current to produce a magnetic field in the inductor. A member movable in proximity to the inductor causes losses in the magnetic energy, which losses are directl...
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