US1763406A - Capacity neutralized switch - Google Patents

Capacity neutralized switch Download PDF

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Publication number
US1763406A
US1763406A US163887A US16388727A US1763406A US 1763406 A US1763406 A US 1763406A US 163887 A US163887 A US 163887A US 16388727 A US16388727 A US 16388727A US 1763406 A US1763406 A US 1763406A
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US
United States
Prior art keywords
switch
capacity
neutralizing
contacts
pole
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US163887A
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English (en)
Inventor
Albert B Moulton
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
RCA Corp
Original Assignee
RCA Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority to NL31940D priority Critical patent/NL31940C/xx
Application filed by RCA Corp filed Critical RCA Corp
Priority to US163887A priority patent/US1763406A/en
Priority to GB2611/28A priority patent/GB284293A/en
Application granted granted Critical
Publication of US1763406A publication Critical patent/US1763406A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
    • H01P1/00—Auxiliary devices
    • H01P1/10—Auxiliary devices for switching or interrupting
    • H01P1/12—Auxiliary devices for switching or interrupting by mechanical chopper
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
    • H01P1/00—Auxiliary devices
    • H01P1/10—Auxiliary devices for switching or interrupting

Definitions

  • CAPACITY NEUTRALIZED SWITCH Filed Jan. 2v 1927 NEE/FER INVENTOR LB MOULTON ray/Z1 d ORNEY Patented June 10, 1930 UNITED STATES PATENT OFFICE ALBERT B. IOULTON, OF RIVEBHEAD, NEW YORK, ASSIGNOR T RADIO CORPORATION OF AMERICA, A CORPORATION OF DELAWARE CAPACITY NEUTRALIZED SWITCH Application filed January 27, 1927. Serial No. 163,887.
  • This invention relates to capacity neutralization of switching devices, and more particularly to a method and means for p1'ov1d ing a capacity neutralized switch for the control of very high frequency energy.
  • Fig. 1 is a wiring diagram showing one method of neutralizing 'the capacity of a double pole single throw switch
  • Fig.2 illustrates how a double pole double throw switch may be employed to provide a capacity neutralized switch
  • Fig. 3 is a'modification.
  • the conductors 2 and 4 are connected to a source of high frequency" energy, while the conductors 6 and 8 are con nccted to means to utilize such energy.
  • the switch comprises poles 9 and 10, and the contacts l2 and 14. ⁇ V'hen the switch is open there is a natural capacitance 0 between the pole 9 and the contact 12, and a capacitance 0 between the pole 10 and the contact 14:, through which high frequencyenergy may pass from the source to the line 6, 8, and to prevent this the neutralizing capacitance 01,, equal to 0 is connected as shown, between the contact l i and the pole 9, and the neutralizing capacitance n equal to the natural capacitance 0 is connected from the contact 12 to the pole 10.
  • the c0ntacts'12, 19 are cross connected with the contacts 16, 18 by means of-the conductors 20 and 22.
  • the line conductor 2 has been shown connected to the contact 16 instead of the contact 19 for the reason that it is preferable to have the connections symmetrical with respect to the poles. It would, of course, be possible to connect the line 2, 4 to the contact 16, 18, or 12, 19, or 18, 19, as well as to 12, 16 as shown. Either line may be the supply or utilization line.
  • a capacity neutralized switch for controlling very high frequency currents comprising a plurality of contactors, a plurality of contacts for cooperation therewith to control the current, and a plurality of neutralizing elements which form with the eontactors neutralizing condensers equivalent to the natural capacitances between the contactors and contacts, and means to impress upon the neutralizing condensers potentials opposite in phase to those impressed upon the natural capacitances.
  • the combination with a two pole mechanicalswitch of a pair of condensers substantially equal in magnitude to the natural capacitance between each pole and its contact, connected between each pole and the contact of the other pole 7.
  • the combination with a high frequency circuit of a mechanical switch comprising structurally a double throw switch each havlng two of its contacts form with their respective eontactors a neutralizing condenser for counteracting the effect of the inherent capacitance between the other respective contactors and their contacts.
  • a capacity neutralized switch for controlling very high frequency currents comprising structurally a double pole double throw switch and conductors for cross connecting its contacts, whereby the contacts form opposed capacitances with reference to the poles.
  • a supply circuit for high frequency energy a utilization circuit for the high frequency energ and means to connect or disconnect the supply circuit to the utilization circuit
  • a supply circuit for high frequency energy a utilization circuit for the high frequency energ and means to connect or disconnect the supply circuit to the utilization circuit
  • a utilization circuit for the high frequency energ and means to connect or disconnect the supply circuit to the utilization circuit comprising a double pole double throw switch, means connecting one of said circuits to two of the switch contacts, means connecting the other of said circuits to the switch poles, and means cross eonnecting the contacts, whereby the contacts torm opposed capa-citances with reference to the poles in order to prevent energy transfer through the switch when open.

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  • Variable-Direction Aerials And Aerial Arrays (AREA)
  • Transmitters (AREA)
  • Radio Relay Systems (AREA)
US163887A 1927-01-27 1927-01-27 Capacity neutralized switch Expired - Lifetime US1763406A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
NL31940D NL31940C (ru) 1927-01-27
US163887A US1763406A (en) 1927-01-27 1927-01-27 Capacity neutralized switch
GB2611/28A GB284293A (en) 1927-01-27 1928-01-26 Improvements in or relating to switching devices for use in high frequency circuits

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US163887A US1763406A (en) 1927-01-27 1927-01-27 Capacity neutralized switch

Publications (1)

Publication Number Publication Date
US1763406A true US1763406A (en) 1930-06-10

Family

ID=22592015

Family Applications (1)

Application Number Title Priority Date Filing Date
US163887A Expired - Lifetime US1763406A (en) 1927-01-27 1927-01-27 Capacity neutralized switch

Country Status (3)

Country Link
US (1) US1763406A (ru)
GB (1) GB284293A (ru)
NL (1) NL31940C (ru)

Also Published As

Publication number Publication date
GB284293A (en) 1928-07-19
NL31940C (ru)

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