US2567742A - Triggered square wave voltage generator - Google Patents
Triggered square wave voltage generator Download PDFInfo
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- US2567742A US2567742A US699043A US69904346A US2567742A US 2567742 A US2567742 A US 2567742A US 699043 A US699043 A US 699043A US 69904346 A US69904346 A US 69904346A US 2567742 A US2567742 A US 2567742A
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K3/00—Circuits for generating electric pulses; Monostable, bistable or multistable circuits
- H03K3/02—Generators characterised by the type of circuit or by the means used for producing pulses
- H03K3/04—Generators characterised by the type of circuit or by the means used for producing pulses by the use, as active elements, of vacuum tubes only, with positive feedback
- H03K3/05—Generators characterised by the type of circuit or by the means used for producing pulses by the use, as active elements, of vacuum tubes only, with positive feedback using means other than a transformer for feedback
- H03K3/06—Generators characterised by the type of circuit or by the means used for producing pulses by the use, as active elements, of vacuum tubes only, with positive feedback using means other than a transformer for feedback using at least two tubes so coupled that the input of one is derived from the output of another, e.g. multivibrator
- H03K3/08—Generators characterised by the type of circuit or by the means used for producing pulses by the use, as active elements, of vacuum tubes only, with positive feedback using means other than a transformer for feedback using at least two tubes so coupled that the input of one is derived from the output of another, e.g. multivibrator astable
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- This invention relates to square wave voltage generator and more particularly to triggered square wave voltage generators having an output with an adjustable maximum value and an independently adjustable peak to peak value.
- a circuit is required that will produce two adjustable azimuth markers on the screen of a cathode ray tube.
- a square wave voltage, adjustable in maximum value and independently adjustable in peak to peak value, having a frequency equal to one half the pulse repetition rate of the radar transmitter and applied to the azimuth deflection plates of the cathode ray tube will produce these desired azimuth markers.
- this square wave voltage is applied to the azimuth deflection plates of the cathode ray tube during periods when the azimuth sweep voltage is not present.
- Another object of this invention is to provide a triggered square wave voltage generator with an output adjustable in average value and peak to peak value.
- a further object is to provide a triggered square wave voltage generator with an output having an adjustable maximum value and an independently adjustable peak to peak value.
- resistors II and I2 rheostats l3 and I4, and voltage regulator electron tube l with its associated load constitute a voltage divider between the positive voltage supply available at terminal 20 and the negative voltage supply at terminal 2
- Decoupling condenser 22 is connected between the negative voltage supply terminal 2I and ground.
- Voltage regulator electron tube 15 has its plate connected to the slidable contact arm of rheostat l3 and its cathode connected to the slidable contact arm of rheostat l4 and has filter condenser 23 connected across between its anode and cathode.
- the slidable arms of rheostats I3 and M are so arranged mechanically and electrically that the difference 7 Claims. (01. 250-27 of potential between them always remains a fixed amount although the absolute voltage at the sliders may be changed by movement of the sliders along the resistance of the respective rheostats as indicated by dotted line 26.
- Triode electron tubes 24 and 25 are connected as a cathode-coupled flip-flop multivibrator circuit with the plate voltage supply obtained from voltage regulator tube 55.
- the cathodes of triodes 24 and 25 are connected together and then through resistor 30 tothe cathode of voltage regulator tube i5, the plate. of triode 24 is connected through resistor 3
- the grid of triode 24 is connected through the parallel combination of condenser 33 and resistor 34 to the plate of triode 25 and through resistor 35 to the cathode of voltage regulator tube l5.
- the grid of triode 25 is connected through the parallel combination of resistor 48 and condenser 41 to the plate of triode 24 and through resistor 42 to the cathode of voltage regulator tube [5.
- Positive range voltage gate input terminal 43 is connected to ground through input resistor 44 and through the series combination of peaking condenser 45 and limiting resistor 56 to the grid of triode electron tube 5!.
- also has its grid connected through isolating resistor 52 to the positive voltage supply at terminal 20, its plate connected through plate load resistor 53 to terminal 20, and its cathode grounded.
- is coupled through condenser 54 to the grid of triode 24 and through condenser 55 to the grid of triode 25.
- Triode electron tubes and BI have their cathodes connected together and through resistor 62 to the cathode of voltage regulator tube 15.
- the grid of triode 60 is connected to the grid of triode 25 and the plate of triode 60 is connected through plate load resistor 63 to the plate of Voltage regulator tube 1.5.
- has its grid connected to the grid of triode 24 and its plate connected through the entire resistance of potentiometer 64, as a plate load resistance, to the plate of voltage regulator tube 15.
- contact arm of potentiometer 54 is connected to the grid of triode electron tubefili which is connected as a cathode follower with its plate connected directly to the positive voltage supply at terminal 2E! and its cathode connected through cathode load resistor 10 to ground.
- Square wave voltage output terminal H is connected to the cathode of triode 65.
- the positive range voltage gate applied at terminal 43 produces at its trailing edge a positive voltage pulse output at the plate of triode 5
- This positive voltage pulse is applied simultaneously to the grids of triodes 24 and 25 which are connected as a flip-flop multivibrator having one tube in a conducting state and the other in a non-conducting state.
- the positive voltage pulse when applied to the grid of the non-iconducting tube, raises the grid voltage to a sufiicien't voltage level to cause the non-conducting tube to become conducting.
- triodes 24 and 25 are connected as a flip-flop multivibrator, the triggering of one triode from the non-conducting to the conducting state causes the other triode to be changed from the conducting to the nonconducting state by multivibrator action.
- the efiect of this multivibrator action is such that a substantially square wave voltage is produced at the grid of triode 24 and triode 25.
- This square wave voltage is then coupled from the gridof'triode 25 to the grid of triode 60 and from the grid of triode 24 to the grid of triode 5
- the voltage output obtained-at the arm of potentiometer 64 will, therefore, be arsquare wave voltage due to the alternate conducting and non-conducting state-of triode BI.
- This square wave voltage is coupled to the grid of triode 65 and is available at square wave voltage output terminal H.
- Triode 60 functions in the circuit to maintain an approximately constant load upon voltage regulator tube IE to prevent the discharge in voltage regulator tube l5 from beingextinguished with resultant large swings in voltage output during the time when triode BI is non-conducting.
- the maximum value of the square Wave voltage -output from terminal H is obtained when triod BI is non-conducting and is substantially equal to the voltage appearing at the variable armcf rheostat l3, and theminimum value is obtained when triode- 6 I is conductingand is substantially equal to the maximumzvalue of the square wave voltage output less the resistance drop in potentiometer '64 between the sliding contact arm and the end of theresistance connected to theplate of vvoltage regulator tube l5.
- the vmaximum value of the square wave voltage output is dependent-upon the setting of rheostats I3 and M, and the minimum value is dependent upon the combined setting of the sliding arm of potentiometer B4 and the rheostats I3 and M.
- the frequency of the square'wave voltage output is one half of the :radar transmitter repetition rate with one radar range sweep occurring during each half cycle of the squarewave voltage output.
- this squarewave voltage generator as a marker generator .for use in measuring the distance:between twopoints of a'cathode ray tube presentation, rheostats I3 and .I4 are simultaneouslyv manipulated until the marker corresponding to the maximum value of the square wave voltageis aligned with one of .the two points,
- potentiometer is adjusted by a calibratedknob (not shown) until the other marker is aligned with the second point.
- the distance between the two points on the cathode ray tube presentation is then shown directly on the calibrated knob of potentiometer 64.
- a triggered square wave voltage generator having an output voltage adjustable in maximum and peak to peak values comprising, a first electron tube having at least a cathode, an anode, and control grid, a positive voltage supply, a negative voltage supply, first and second resistors, first and second rheostats, a second electron tube having at least a cathode, and an anode, said second electron tube serving as a voltage regulator and having its cathode connected through said first rheostat and said first resistor to said negative voltage supply and its anode connected through said second rheostat and said second resistor to said positive voltage supply, the contact arms of said first and second rheostats being mechanically coupled so that the voltage from cathode to anode of said second electron tube remains constant despite changes in the absolute voltage of the anode and cathode of said second electron tube due to movement of said contact arms of said first and second rheostats, a third resistor connected between the cathode of said first electron
- a triggered square wave voltage generator having an output adjustable in maximum and peak to peak voltage values, comprising means for producing a constant predetermined difference voltage between first and second potentials, means to adjust the absolute value of said potentials, a source of positive voltage gates, a first electron tube having at least a cathode, an anode, and a control grid, a first condenser, a first resistor, said firstcondenser and first resistor connected in series between said source of positive voltage gates and the control grid of said first electron tubeLa positive voltage source, a second resistor connecting the grid of said first electron tube to saidpositive voltage source, a third resistor connected between the :plate of said'first electron tube andsaid positive voltage source, the cathode .of said first electron tube being grounded, a second electron tube having at least a cathode, an anode, and a-control grid, means operated by the output from said first electron tube to cause said second electron tube to be alternately conducting and non-conducting, a potentiometer, the resistance
- a triggered square wave voltage generator having an output adjustable in maximum and peak to peak values, comprising a positive voltage supply,'a negative voltage supply, first and second resistors, first and second rheostats, a first electron tube connected as a voltage regulator tube having at least a cathode and an anode, the cathode of said first electron tube being connected through said first rheostat and said first resistor to said negative voltage supply and the anode being connected through said second rheostat and said second resistor to said positive voltage supply, the sliding contact arms of said first and second rheostats being mechanically coupled so that the anode to cathode voltage of said first electron tube remains constant despite changes in position of said sliding contact arms of said first and second rheostats, a first condenser connected between the anode and cathode of said first electron tube, second and third electron tubes each having at least a cathode, an
- said second and third electron tubes being connected as a flip-flop multivibrator, third and fourth resistors connecting the anode of said second and third electron tubes respectively to the anode of said first electron tube, fifth and sixth resistors connecting the control grids of said second and third electron tubes respectively to the cathode of said first electron tube, a seventh resistor common to the cathodes of said second and third electron tubes connecting them to the cathode of said first electron tube, a second condenser connected between the anode of said second electron tube and the control grid of said third electron tube, a third condenser connected between the anode of said third electron tube and the control grid of said second electron tubes, an eighth resistor connected in parallel with said second condenser, a ninth resistor connected in parallel with said third condenser, a source of positive voltage range gates, means operated by said positive voltage range gates to form positive voltage triggers, fourth V and fifth condensers to couple said positive voltage triggers to the control grid of
- a triggered squarev wave voltage generator having an output adjustable in maximum and peak to peak values comprising, an electron tubehaving at least an anode, a-cathode and a control grid, at source of unidirectional potentials, means for producing a regulated predetermined difference voltagebetween two potentials from said source, means for adjusting the absolute, values of said potentials, said regulated difference voltage being adapted for use as the anode voltage supply for said electron tube, a potentiometer, the resistance of said potentiometer being connected between the plate of said electron tube and one terminal of said difference voltage, a source of positive voltage control pulses, a multivibrator triggered by said control pulses for mak-; ing said electron tube alternately conductive and, non-conductive during successive control pulses, and means for obtaining a voltage output from the contact arm of said potentiometer, said voltage output being in the form of a square Wave having the maximum voltage adjustable by said means for adjusting the absolute value of said potentials and the peak to peak voltage independently adjustable by the contact arm of
- -A triggered square wave voltage generator having an output adjustable in maximum and peak to peak values comprising, first and second electron tubes each having at least an anode, a cathode and a control grid, a source of unidirectional potentials, means for producing a regulated predetermined difference voltage between two potentials from said source, means for adjusting the absolute value of said potentials, said regulated difference voltage being adapted for use as the anode voltage supply for said electron tubes, a potentiometer, the resistance of said potentiometer being connected between the plate of said first electron tube and one terminal of said difference voltage, a source of positive voltage control pulses, a multivibrator energized from said difference voltage and triggered by said control pulses for making said electron tubes alternately conducting and nonconducting during successive control pulses, said alternate conducting and nonconducting first and second electron tubes acting to provide a constant load on said regulated difference voltage, and means for obtaining a voltage output from the contact arm of said potentiometer, said voltage output being in the form of a square
- a triggered square wave voltage generator having an adjustable maximum value and an independently adjustable peak to peak value comprising, a source of unidirectional potentials, means for producing a regulated diiference voltage between two potentials from' said source, means for adjusting the absolute value of said potentials, a source of positive voltage control pulses, a driven multivibrator energized by said regulated difference voltage and responsive to positive pulses from said source, an overdriven amplifier also energized from said regulated difference voltage and responsive to the output wave form of said multivibrator for producing a substantially square wave output voltage, a cathode follower circuit energized from said potentiallsource and responsive .to the output of said amplifier to yield a square wave output voltage, means for adjusting the amplitude of voltage fed from said amplifier to said cathode follower to adjust the peak to peak value of said cathode follower square wave output voltage, said cathode follower being biased by variation of the absolute value of said potentials from said source to vary the maximum value of said square wave output voltage.
- a triggered square wave voltage generator having an adjustable maximum value and an independently adjustable peak to peak value comprising, -.a source of unidirectional potentials, means for producing a regulated difference voltage between two potentials from said source, means for adjusting the absolute value of said potentials, an overdriven amplifier including first and.
- second electron tubes each having at least an anode, a cathode and a control grid, means for energizing said amplifier from said regulated difference voltage, a potentiometer, the resistance of said potentiometer being connected between the plate of said first electron tube and one terminal of said difference voltage, a source of positive voltage control pulses, a driven multivibrator energized from said regulated difference voltage and triggered by said positive voltage control pulses for making said first and sec- 0nd electron tubes alternately conducting and nonconducting during successive control pulses to produce substantially a square wave output voltage, said alternately conducting and nonconducting first and.
- second electron tubes acting to provide a constant load on said regulated difference voltage
- a cathode follower circuit energized from said potential source and responsive to the output of said amplifier to yield a square wave output voltage
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Description
Sept. 11, 1951 H. P. STABLER TRIGGERED SQUARE WAVE VOLTAGE GENERATOR Filed Sept. 24, 1946 M959 R N228. mm mm a v .m :EZGEQ NN ms 3 wo 5o wwz A M252 D R m N. o H J 2 m J wm 8! 5&3
ATTORN EY Patented Sept. 11,1951
TRIGGERED SQUARE WAVE VOLTAG GENERATOR Howard P. Stabler, WilliamstowmMass assignor, by mesne assignments, to the United States of America as represented by the Secretary of the Navy Application September 24, 194G,-Serial No. 699,043
1 This invention relates to square wave voltage generator and more particularly to triggered square wave voltage generators having an output with an adjustable maximum value and an independently adjustable peak to peak value.
'This application is a continuation-in-part of my copending application entitled V-Beam Height Indicator Serial No. 699,044, filed September 24, 1946, and hereinafter referred to as the parent application.
In the parent application a circuit is required that will produce two adjustable azimuth markers on the screen of a cathode ray tube. A square wave voltage, adjustable in maximum value and independently adjustable in peak to peak value, having a frequency equal to one half the pulse repetition rate of the radar transmitter and applied to the azimuth deflection plates of the cathode ray tube will produce these desired azimuth markers. As disclosed in the parent application this square wave voltage is applied to the azimuth deflection plates of the cathode ray tube during periods when the azimuth sweep voltage is not present.
It is therefore a primary object of this invention to provide a triggered square wave voltage generator.
Another object of this invention is to provide a triggered square wave voltage generator with an output adjustable in average value and peak to peak value.
A further object is to provide a triggered square wave voltage generator with an output having an adjustable maximum value and an independently adjustable peak to peak value.
These and other objects will be apparent to those skilled in the art from the following specification when taken with the accompanying drawing which is a schematic diagram of one embodiment thereof.
Referring to the diagram resistors II and I2, rheostats l3 and I4, and voltage regulator electron tube l with its associated load constitute a voltage divider between the positive voltage supply available at terminal 20 and the negative voltage supply at terminal 2|. Decoupling condenser 22 is connected between the negative voltage supply terminal 2I and ground. Voltage regulator electron tube 15 has its plate connected to the slidable contact arm of rheostat l3 and its cathode connected to the slidable contact arm of rheostat l4 and has filter condenser 23 connected across between its anode and cathode. The slidable arms of rheostats I3 and M are so arranged mechanically and electrically that the difference 7 Claims. (01. 250-27 of potential between them always remains a fixed amount although the absolute voltage at the sliders may be changed by movement of the sliders along the resistance of the respective rheostats as indicated by dotted line 26.
Positive range voltage gate input terminal 43 is connected to ground through input resistor 44 and through the series combination of peaking condenser 45 and limiting resistor 56 to the grid of triode electron tube 5!. Triode 5| also has its grid connected through isolating resistor 52 to the positive voltage supply at terminal 20, its plate connected through plate load resistor 53 to terminal 20, and its cathode grounded. The plate of triode 5| is coupled through condenser 54 to the grid of triode 24 and through condenser 55 to the grid of triode 25.
Triode electron tubes and BI have their cathodes connected together and through resistor 62 to the cathode of voltage regulator tube 15. The grid of triode 60 is connected to the grid of triode 25 and the plate of triode 60 is connected through plate load resistor 63 to the plate of Voltage regulator tube 1.5. Triode 6| has its grid connected to the grid of triode 24 and its plate connected through the entire resistance of potentiometer 64, as a plate load resistance, to the plate of voltage regulator tube 15. contact arm of potentiometer 54 is connected to the grid of triode electron tubefili which is connected as a cathode follower with its plate connected directly to the positive voltage supply at terminal 2E! and its cathode connected through cathode load resistor 10 to ground. Square wave voltage output terminal H is connected to the cathode of triode 65.
The Y In the operation of this embodiment of the invention, the positive range voltage gate applied at terminal 43 produces at its trailing edge a positive voltage pulse output at the plate of triode 5|. This positive voltage pulse is applied simultaneously to the grids of triodes 24 and 25 which are connected as a flip-flop multivibrator having one tube in a conducting state and the other in a non-conducting state. The positive voltage pulse when applied to the grid of the non-iconducting tube, raises the grid voltage to a sufiicien't voltage level to cause the non-conducting tube to become conducting. As triodes 24 and 25 are connected as a flip-flop multivibrator, the triggering of one triode from the non-conducting to the conducting state causes the other triode to be changed from the conducting to the nonconducting state by multivibrator action.
The efiect of this multivibrator action is such that a substantially square wave voltage is produced at the grid of triode 24 and triode 25. This square wave voltage is then coupled from the gridof'triode 25 to the grid of triode 60 and from the grid of triode 24 to the grid of triode 5| alternately changing triodes 60 and El from a non-conducting to aconducting state. The voltage output obtained-at the arm of potentiometer 64 will, therefore, be arsquare wave voltage due to the alternate conducting and non-conducting state-of triode BI. This square wave voltage is coupled to the grid of triode 65 and is available at square wave voltage output terminal H. Triode 60 functions in the circuit to maintain an approximately constant load upon voltage regulator tube IE to prevent the discharge in voltage regulator tube l5 from beingextinguished with resultant large swings in voltage output during the time when triode BI is non-conducting.
The maximum value of the square Wave voltage -output from terminal H is obtained when triod BI is non-conducting and is substantially equal to the voltage appearing at the variable armcf rheostat l3, and theminimum value is obtained when triode- 6 I is conductingand is substantially equal to the maximumzvalue of the square wave voltage output less the resistance drop in potentiometer '64 between the sliding contact arm and the end of theresistance connected to theplate of vvoltage regulator tube l5.
It may, therefore, .be :seen that the vmaximum value of the square wave voltage output is dependent-upon the setting of rheostats I3 and M, and the minimum value is dependent upon the combined setting of the sliding arm of potentiometer B4 and the rheostats I3 and M.
As a complete cycle of the square wave voltage output at terminal H results from trigger pulses received from two positive voltage range gates, the frequency of the square'wave voltage output is one half of the :radar transmitter repetition rate with one radar range sweep occurring during each half cycle of the squarewave voltage output.
In the use of this squarewave voltage generator asa marker generator .for use in measuring the distance:between twopoints of a'cathode ray tube presentation, rheostats I3 and .I4 are simultaneouslyv manipulated until the marker corresponding to the maximum value of the square wave voltageis aligned with one of .the two points,
and then potentiometer :is adjusted by a calibratedknob (not shown) until the other marker is aligned with the second point. The distance between the two points on the cathode ray tube presentation is then shown directly on the calibrated knob of potentiometer 64.
The invention described in the foregoing speci fication need not be limited to the details shown which are considered to be illustrative of the embodiment of the invention most applicable to use with the invention disclosed in the parent application which is considered to be illustrative of one form that the invention may take. The scope of the invention is defined by the appended claims.
What is claimed is:
l. A triggered square wave voltage generator having an output voltage adjustable in maximum and peak to peak values comprising, a first electron tube having at least a cathode, an anode, and control grid, a positive voltage supply, a negative voltage supply, first and second resistors, first and second rheostats, a second electron tube having at least a cathode, and an anode, said second electron tube serving as a voltage regulator and having its cathode connected through said first rheostat and said first resistor to said negative voltage supply and its anode connected through said second rheostat and said second resistor to said positive voltage supply, the contact arms of said first and second rheostats being mechanically coupled so that the voltage from cathode to anode of said second electron tube remains constant despite changes in the absolute voltage of the anode and cathode of said second electron tube due to movement of said contact arms of said first and second rheostats, a third resistor connected between the cathode of said first electron tube and the cathode of said second electron tube, a potentiometer, the resistance of said potentiometer connected between the anode of said first electron tube and the anode of said second electron tube, a source of positive voltage control pulses, means operated by said positive voltage control pulses to cause said first electron tube to be conducting during alternate positive voltage control pulses and nonconducting during intervening positive voltage control pulses, and means .to obtain a voltage output from the contact arm of said potentiometer, said voltage output being a square wave due to the alternate conduction and non-conduction of said first electron tube, the maximum value of said square Wave being dependent upon the setting of said first and second rheostats and the peak to peak value being dependent solely upon the setting of said contact arm of said potentiometer.
2. A triggered square wave voltage generator having an output adjustable in maximum and peak to peak voltage values, comprising means for producing a constant predetermined difference voltage between first and second potentials, means to adjust the absolute value of said potentials, a source of positive voltage gates, a first electron tube having at least a cathode, an anode, and a control grid, a first condenser, a first resistor, said firstcondenser and first resistor connected in series between said source of positive voltage gates and the control grid of said first electron tubeLa positive voltage source, a second resistor connecting the grid of said first electron tube to saidpositive voltage source, a third resistor connected between the :plate of said'first electron tube andsaid positive voltage source, the cathode .of said first electron tube being grounded, a second electron tube having at least a cathode, an anode, and a-control grid, means operated by the output from said first electron tube to cause said second electron tube to be alternately conducting and non-conducting, a potentiometer, the resistance of said potentiometer being connected between the plate of said second electron tube and to one side of said constant difference of potential, a third electron tube having at least a cathode, an anode and a control grid, the control grid of said third electron tube being connected to the contact arm of said potentiometer, the plate of said third electron tube connected to said positive voltage supply, an output terminal, and a fourth resistor, said fourth resistor being connected between the oathode of said third electron tube and ground, said output terminal being connected directly to the cathode of said third electron tube.
3. A triggered square wave voltage generator having an output adjustable in maximum and peak to peak values, comprising a positive voltage supply,'a negative voltage supply, first and second resistors, first and second rheostats, a first electron tube connected as a voltage regulator tube having at least a cathode and an anode, the cathode of said first electron tube being connected through said first rheostat and said first resistor to said negative voltage supply and the anode being connected through said second rheostat and said second resistor to said positive voltage supply, the sliding contact arms of said first and second rheostats being mechanically coupled so that the anode to cathode voltage of said first electron tube remains constant despite changes in position of said sliding contact arms of said first and second rheostats, a first condenser connected between the anode and cathode of said first electron tube, second and third electron tubes each having at least a cathode, an
anode, and a control grid, said second and third electron tubes being connected as a flip-flop multivibrator, third and fourth resistors connecting the anode of said second and third electron tubes respectively to the anode of said first electron tube, fifth and sixth resistors connecting the control grids of said second and third electron tubes respectively to the cathode of said first electron tube, a seventh resistor common to the cathodes of said second and third electron tubes connecting them to the cathode of said first electron tube, a second condenser connected between the anode of said second electron tube and the control grid of said third electron tube, a third condenser connected between the anode of said third electron tube and the control grid of said second electron tubes, an eighth resistor connected in parallel with said second condenser, a ninth resistor connected in parallel with said third condenser, a source of positive voltage range gates, means operated by said positive voltage range gates to form positive voltage triggers, fourth V and fifth condensers to couple said positive voltage triggers to the control grid of said second and third electron tubes respectively, fourth and fifth electron tubes each having at least a cathode, an anode, and a control grid, the control grids of said second and fourth electron tubes being connected together and the control grids of said third and fifth electron tubes being connected together, a tenth resistor, the cathodes of said fourth and fifth electron tubes being joined and connected through said tenth resistor to the cathode of said first electron tube, an eleventh resistor connecting the anode of said fourth electron tube to the anode of said first electron tube, a potentiometer, the resistance of said potentiometer being connected between the anodes of said fifth and first electron tubes, and means for obtainin a voltage output from the sliding contact arm of said lpotentiometen'said voltage output being a square wave; i
4. A triggered squarev wave voltage generator having an output adjustable in maximum and peak to peak values comprising, an electron tubehaving at least an anode, a-cathode and a control grid, at source of unidirectional potentials, means for producing a regulated predetermined difference voltagebetween two potentials from said source, means for adjusting the absolute, values of said potentials, said regulated difference voltage being adapted for use as the anode voltage supply for said electron tube, a potentiometer, the resistance of said potentiometer being connected between the plate of said electron tube and one terminal of said difference voltage, a source of positive voltage control pulses, a multivibrator triggered by said control pulses for mak-; ing said electron tube alternately conductive and, non-conductive during successive control pulses, and means for obtaining a voltage output from the contact arm of said potentiometer, said voltage output being in the form of a square Wave having the maximum voltage adjustable by said means for adjusting the absolute value of said potentials and the peak to peak voltage independently adjustable by the contact arm of said potentiometer.
5. -A triggered square wave voltage generator having an output adjustable in maximum and peak to peak values comprising, first and second electron tubes each having at least an anode, a cathode and a control grid, a source of unidirectional potentials, means for producing a regulated predetermined difference voltage between two potentials from said source, means for adjusting the absolute value of said potentials, said regulated difference voltage being adapted for use as the anode voltage supply for said electron tubes, a potentiometer, the resistance of said potentiometer being connected between the plate of said first electron tube and one terminal of said difference voltage, a source of positive voltage control pulses, a multivibrator energized from said difference voltage and triggered by said control pulses for making said electron tubes alternately conducting and nonconducting during successive control pulses, said alternate conducting and nonconducting first and second electron tubes acting to provide a constant load on said regulated difference voltage, and means for obtaining a voltage output from the contact arm of said potentiometer, said voltage output being in the form of a square wave having the maximum voltage adjustable by said means for adjusting the absolute value of said potentials and the peak to peak voltage independently adjustable by the contact arm of said potentiometer.
6. A triggered square wave voltage generator having an adjustable maximum value and an independently adjustable peak to peak value comprising, a source of unidirectional potentials, means for producing a regulated diiference voltage between two potentials from' said source, means for adjusting the absolute value of said potentials, a source of positive voltage control pulses, a driven multivibrator energized by said regulated difference voltage and responsive to positive pulses from said source, an overdriven amplifier also energized from said regulated difference voltage and responsive to the output wave form of said multivibrator for producing a substantially square wave output voltage, a cathode follower circuit energized from said potentiallsource and responsive .to the output of said amplifier to yield a square wave output voltage, means for adjusting the amplitude of voltage fed from said amplifier to said cathode follower to adjust the peak to peak value of said cathode follower square wave output voltage, said cathode follower being biased by variation of the absolute value of said potentials from said source to vary the maximum value of said square wave output voltage.
=7. A triggered square wave voltage generator having an adjustable maximum value and an independently adjustable peak to peak value comprising, -.a source of unidirectional potentials, means for producing a regulated difference voltage between two potentials from said source, means for adjusting the absolute value of said potentials, an overdriven amplifier including first and. second electron tubes each having at least an anode, a cathode and a control grid, means for energizing said amplifier from said regulated difference voltage, a potentiometer, the resistance of said potentiometer being connected between the plate of said first electron tube and one terminal of said difference voltage, a source of positive voltage control pulses, a driven multivibrator energized from said regulated difference voltage and triggered by said positive voltage control pulses for making said first and sec- 0nd electron tubes alternately conducting and nonconducting during successive control pulses to produce substantially a square wave output voltage, said alternately conducting and nonconducting first and. second electron tubes acting to provide a constant load on said regulated difference voltage, a cathode follower circuit energized from said potential source and responsive to the output of said amplifier to yield a square wave output voltage, means for adjusting the amplitude of voltage fed from said amplifier to said cathode follower to adjust the peak to peak value of said cathode follower square wave .output voltage, said cathode follower "being biased by variation of the absolute value of said potentials from said source to vary the maximum value of said square Wave output voltage.
HOWARD P. STABLER.
REFERENCES CITED The following references are of record in the file of this patent:
UNITED STATES PATENTS Number Name Date 1,979,484 Mathes Nov. 6, 1934 2,286,377 Roberts June 16, 1942 2,403,934 Koenig, Jr., et a1. July 16, 1946
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US699043A US2567742A (en) | 1946-09-24 | 1946-09-24 | Triggered square wave voltage generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US699043A US2567742A (en) | 1946-09-24 | 1946-09-24 | Triggered square wave voltage generator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US2567742A true US2567742A (en) | 1951-09-11 |
Family
ID=24807695
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US699043A Expired - Lifetime US2567742A (en) | 1946-09-24 | 1946-09-24 | Triggered square wave voltage generator |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US2567742A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2910584A (en) * | 1956-08-06 | 1959-10-27 | Digital Control Systems Inc | Voted-output flip-flop unit |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1979484A (en) * | 1932-04-13 | 1934-11-06 | Rca Corp | Communication system |
| US2286377A (en) * | 1940-08-31 | 1942-06-16 | Rca Corp | Frequency modulation receiver |
| US2403984A (en) * | 1945-04-03 | 1946-07-16 | Bell Telephone Labor Inc | Representation of complex waves |
-
1946
- 1946-09-24 US US699043A patent/US2567742A/en not_active Expired - Lifetime
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1979484A (en) * | 1932-04-13 | 1934-11-06 | Rca Corp | Communication system |
| US2286377A (en) * | 1940-08-31 | 1942-06-16 | Rca Corp | Frequency modulation receiver |
| US2403984A (en) * | 1945-04-03 | 1946-07-16 | Bell Telephone Labor Inc | Representation of complex waves |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2910584A (en) * | 1956-08-06 | 1959-10-27 | Digital Control Systems Inc | Voted-output flip-flop unit |
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