TH18227B - Parabolic filter at a frequency of 50 Hz. - Google Patents

Abstract

The drawing signal waveform generator scrolls. To be able to work at a frequency One or two level drawing consisting of a generated source (IC100) of a parabolic signal. With a frequency that can be selected between the first or second draw frequency, the path (456) for generating a switch signal that That represents the work of The signal that the beauty is frequent One or two level sweeping paths (CS50, CS60, C4, C5,460) for generating sawtooth waveforms. To be linked to Switch signal which To switch between first- or second-level sweep frequency, paths (U1, R6) for generating S-correlated modulation signal source (IC100) and connected to sawtooth signaling pathway. (CS50, CS60, C4, C5,460) Pathways (R1, C1, Q1) for parabolic signal filtering. Will be controllable linked to The switch signal generator (456) is also linked to the S (U1, R6) modulation pathway, the filtered parabolic signal. Will have the same draft During frequency Such first or second level sweep

Claims (9)

1. The Drawing Waveform Generator contains a path for generating a switching signal. Which the signal switch, which is said to have one condition That indicates a video signal operating at the first sweep frequency and with an indicative second state To a video signal operating at the frequency of the second sweep A path that responds to a loud switch signal to produce a tooth-shaped signal. Saw at one level, first and second sweep frequency A parabolic signal source that is synchronized with the frequency of such image sweep, the path for generating the S rectifier signal connected to that source, and With the method for generating such sawtooth signals and The path is connected to the path for generating the modulation signal S to filter the parabolic signal that responds to the switching signal generator. It produces a filtered parabolic signal that has the same pattern during the process. A sweep is shifted at a certain level of the first and second sweep frequency levels. 2. The Drawing Waveform Generator scrolls according to claim 1 where the signal Such switches provide further indication of the absence of such video signals. 3. The drawing waveform generator moves according to claim 1 where the path The filter is activated in response to a switch signal indicating the frequency of the sweep. One such 4. The drawing waveform generator scrolls according to claim 1. Where the way The filter is activated in response to a switch signal indicating the sweep frequency. Second such 5. The drawing waveform generator moves according to claim 2. Where the connection to The path for generating the modulation signal S is suppressed in response to the switch signal, which Indicates the absence of such a visual signal. 6. The Drawing Waveform Generator scrolls according to claim 1 where the frequency of The first sweep is usually 50Hz and the frequency of the second sweep is usually 60Hz. 7. The drawing waveform generator is scrolled according to claim 6, where a 50Hz or 60Hz sweep frequency is automatically detected by means of generating the switching signal. 8. The waveform generator that sweeps over claim 3, where the filter The signal consists of a resistor and a filter capacitor that pass through the low frequency signal. 9. A waveform generator that sweeps over contains A path for generating a switching signal Which the aforementioned switching signal has one condition that Indicates a video signal operating at the first sweep frequency and a second indicating A video signal that operates at the frequency of the second sweep. A path that responds to a loud switch signal to produce a signal that is shaped like a Sawtooth at one level, first and second sweep frequency A parabolic signal source, synchronized with the frequency of such image sweep, a path for generating a rectifier signal S connected to that source and into With a path for generating such sawtooth signals and The path is connected to the path for generating the S-modulation signal and responding to the switch signal generator, which controls the magnitude of the parabolic signal to maintain The signal size level is adjusted to the correctness S to be the same during a sequence of sweeps. Any of the first and second sweep frequency levels 1 0. The Drawing Waveform Generator moves in accordance with Clause 9 where the control path. The magnitude of this signal is stimulated in response to the switch signal indicating the frequency of One such sweep 1 1. The drawing waveform generator moves according to claim 9 where the control path. The magnitude of this signal is stimulated in response to the switch signal, indicating the frequency of the The aforementioned second sweep 1 2. The drawing waveform generator moves according to claim 10. Where the way of control The magnitude of this signal will attenuate the parabolic signal in response to the switch signal. Which indicates one such sweep frequency 1 3. The Drawing Waveform Generator scrolls according to claim 12 where the frequency of First sweep Usually 50Hz, the second sweep frequency is usually 60Hz 1. 4. A parabolic waveform generator consists of An amplifier connected to a coil to generate current inside it. Path for generating a switch signal, in which the switch signal has a certain condition that Indicates a video signal that operates at the first sweep frequency and has a second state indicating. A video signal that operates at the frequency of the second sweep. A parabolic signal source operating at the first or second sweep frequency and a trajectory that is controlled to be connected to a switch generator for filtering of the image signal. Such parabolic The filter path has an output signal that is connected to an amplifier to adjust the aberration. The electron beam is correct, the output signal has the same shape throughout the During sweeping at a certain level, get the frequency of the second humming sweep.1 5. Parabolic waveform generator according to claim 14, where the source will operate. At the frequency of the first sweep, which creates an asymmetric parabolic signal 1 6. Parabolic waveform generator according to claim 15 where the filtering path Will operate at the frequency of sweep one 1 7. Parabolic waveform generator according to claim 14, where the source will operate. At the frequency of the first sweep, which creates an asymmetric parabolic signal 1 8. Parabolic waveform generator according to claim 14, where such filtering path Will not run at the frequency of the second sweep 1 9. Parabolic waveform generator according to claim 1, where the filter path It continues to grow with a size-controlled pathway in response to an indicative switch signal. To the frequency of the first sweep 2 0. Parabolic waveform generator according to claim 9, where the control path The magnitude further consists of a filter that is activated in response to the indicated switching signal. Tells the frequency of the first sweep