DK179769B1 - Dc power supply system and devices for electric musical equipment - Google Patents

Dc power supply system and devices for electric musical equipment Download PDF

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Publication number
DK179769B1
DK179769B1 DKPA201800152A DKPA201800152A DK179769B1 DK 179769 B1 DK179769 B1 DK 179769B1 DK PA201800152 A DKPA201800152 A DK PA201800152A DK PA201800152 A DKPA201800152 A DK PA201800152A DK 179769 B1 DK179769 B1 DK 179769B1
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DK
Denmark
Prior art keywords
power supply
connector
cable
power
supply connector
Prior art date
Application number
DKPA201800152A
Other languages
Danish (da)
Inventor
Ciok Poul
Original Assignee
CIOKS ApS
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Publication date
Application filed by CIOKS ApS filed Critical CIOKS ApS
Priority to DKPA201800152A priority Critical patent/DK179769B1/en
Priority to PCT/DK2019/000122 priority patent/WO2019196995A1/en
Application granted granted Critical
Publication of DK201800152A1 publication Critical patent/DK201800152A1/en
Publication of DK179769B1 publication Critical patent/DK179769B1/en

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Classifications

    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10H—ELECTROPHONIC MUSICAL INSTRUMENTS; INSTRUMENTS IN WHICH THE TONES ARE GENERATED BY ELECTROMECHANICAL MEANS OR ELECTRONIC GENERATORS, OR IN WHICH THE TONES ARE SYNTHESISED FROM A DATA STORE
    • G10H1/00—Details of electrophonic musical instruments
    • G10H1/32—Constructional details
    • G10H1/34—Switch arrangements, e.g. keyboards or mechanical switches specially adapted for electrophonic musical instruments
    • G10H1/344—Structural association with individual keys
    • G10H1/348—Switches actuated by parts of the body other than fingers
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10H—ELECTROPHONIC MUSICAL INSTRUMENTS; INSTRUMENTS IN WHICH THE TONES ARE GENERATED BY ELECTROMECHANICAL MEANS OR ELECTRONIC GENERATORS, OR IN WHICH THE TONES ARE SYNTHESISED FROM A DATA STORE
    • G10H1/00—Details of electrophonic musical instruments
    • G10H1/32—Constructional details
    • G10H1/34—Switch arrangements, e.g. keyboards or mechanical switches specially adapted for electrophonic musical instruments
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10H—ELECTROPHONIC MUSICAL INSTRUMENTS; INSTRUMENTS IN WHICH THE TONES ARE GENERATED BY ELECTROMECHANICAL MEANS OR ELECTRONIC GENERATORS, OR IN WHICH THE TONES ARE SYNTHESISED FROM A DATA STORE
    • G10H1/00—Details of electrophonic musical instruments
    • G10H1/02—Means for controlling the tone frequencies, e.g. attack or decay; Means for producing special musical effects, e.g. vibratos or glissandos
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10H—ELECTROPHONIC MUSICAL INSTRUMENTS; INSTRUMENTS IN WHICH THE TONES ARE GENERATED BY ELECTROMECHANICAL MEANS OR ELECTRONIC GENERATORS, OR IN WHICH THE TONES ARE SYNTHESISED FROM A DATA STORE
    • G10H1/00—Details of electrophonic musical instruments
    • G10H1/18—Selecting circuits
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10H—ELECTROPHONIC MUSICAL INSTRUMENTS; INSTRUMENTS IN WHICH THE TONES ARE GENERATED BY ELECTROMECHANICAL MEANS OR ELECTRONIC GENERATORS, OR IN WHICH THE TONES ARE SYNTHESISED FROM A DATA STORE
    • G10H3/00—Instruments in which the tones are generated by electromechanical means
    • G10H3/12—Instruments in which the tones are generated by electromechanical means using mechanical resonant generators, e.g. strings or percussive instruments, the tones of which are picked up by electromechanical transducers, the electrical signals being further manipulated or amplified and subsequently converted to sound by a loudspeaker or equivalent instrument
    • G10H3/14—Instruments in which the tones are generated by electromechanical means using mechanical resonant generators, e.g. strings or percussive instruments, the tones of which are picked up by electromechanical transducers, the electrical signals being further manipulated or amplified and subsequently converted to sound by a loudspeaker or equivalent instrument using mechanically actuated vibrators with pick-up means
    • G10H3/18—Instruments in which the tones are generated by electromechanical means using mechanical resonant generators, e.g. strings or percussive instruments, the tones of which are picked up by electromechanical transducers, the electrical signals being further manipulated or amplified and subsequently converted to sound by a loudspeaker or equivalent instrument using mechanically actuated vibrators with pick-up means using a string, e.g. electric guitar
    • G10H3/186—Means for processing the signal picked up from the strings
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J1/00—Circuit arrangements for dc mains or dc distribution networks
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10H—ELECTROPHONIC MUSICAL INSTRUMENTS; INSTRUMENTS IN WHICH THE TONES ARE GENERATED BY ELECTROMECHANICAL MEANS OR ELECTRONIC GENERATORS, OR IN WHICH THE TONES ARE SYNTHESISED FROM A DATA STORE
    • G10H2230/00—General physical, ergonomic or hardware implementation of electrophonic musical tools or instruments, e.g. shape or architecture
    • G10H2230/025—Computing or signal processing architecture features
    • G10H2230/035—Power management, i.e. specific power supply solutions for electrophonic musical instruments, e.g. auto power shut-off, energy saving designs, power conditioning, connector design, avoiding inconvenient wiring
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
    • H01R4/24—Connections using contact members penetrating or cutting insulation or cable strands
    • H01R4/2416—Connections using contact members penetrating or cutting insulation or cable strands the contact members having insulation-cutting edges, e.g. of tuning fork type

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Power Engineering (AREA)
  • Details Of Connecting Devices For Male And Female Coupling (AREA)
  • Electrophonic Musical Instruments (AREA)

Abstract

The present invention relates to a DC power connector configured for connection to the power supply input terminal on a musical instruments device, such as an effect pedal for an electric guitar, where the DC power connector contains an electronic circuit comprising means (6) configured to provide galvanic isolation between an input terminal (7; 25; 29, 30; 34, 35; 39) and an output terminal (3, 5; 24, 27, 32, 37) of the DC power connector, where the DC power connector is configured such that it enables a user from the DC power connector to choose the DC output voltage from the DC power connector, such that the output voltage corresponds to the DC voltage required for the musical instruments device. In an embodiment, the galvanic isolation is provided by a switch-mode converter circuit comprising a transformer. In an embodiment, the DC connector comprises an IDC connector (7, 39, 47, 53) configured to be connected to a DC supply cable (40) supplying DC power from a DC power supply (49, 55). The invention further relates to a daisy-chain type DC power supply system in which the DC power connector according to the invention is used.

Description

DC POWER SUPPLY SYSTEM AND DEVICES FOR ELECTRIC MUSICAL EQUIPMENT TECHNICAL FIELD
The present invention relates generally to the field of low voltage DC power supplies and more particularly to devices, and systems and for providing low voltage DC power to electrical musical equipment, such as effect pedals for electrical guitars.
BACKGROUND OF THE INVENTION
Currently, electrical musical equipment, such as guitar effect pedals, can be powered in different ways, such as: (1) a battery inside each piece of equipment; (2) a plug-in mains adapter for each piece of equipment; (3) a plug-in mains adapter with a traditional daisy-chain cable; or (4) a dedicated multi-outlet power supply.
All of these different ways of powering an electrical musical equipment suffer from different drawbacks. Thus, option (1) is an expensive and impractical way of powering electrical musical equipment, especially when many pieces of such equipment are present and the different pieces of equipment require different DC voltages. Option (2) is rather space consuming and also expensive. Option (3) does offer a cheap solution and also requires limited space, but only works well in simple cases, due at least to the following disadvantages: only one DC voltage value is obtainable, no galvanic isolation is provided between input and output of the DC connector to each specific piece of equipment, the daisy-chain cable has a fixed number of output plugs and the distance between these plugs are predetermined by the layout of the cable and cannot be adapted optimally to each specific use situation. Furthermore, most daisychain cables offer only one size and polarity of the DC plugs. Finally, option (4), although flexible and adaptable, is an expensive solution, especially when a large number of different pieces of equipment are used.
In any case, using prior art solutions, the only possibility to add more isolated DC outlets to an existing setup is to add another plug-in mains adapter, or use a second dedicated multi-outlet isolated power supply. Thereby, a number of additional boxes are added to the setup which is not practical, could be unreliable and at any rate is not desirable from an aesthetical point of view.
It is known within the art that optimal powering of electrical musical equipment, such as electrical guitar effect pedals, is only achieved when each piece of equipment is powered by an isolated source to avoid ground-loop related hum and/or one piece of equipment inducing noise into another via a non-isolated power bus (traditional daisy-chain).
Prior art document GB2453557A describes a battery simulator device comprising means for providing a floating supply voltage used to power a number of effects pedals for instance for electrical guitars, either using a DC to DC converter or other transformer isolation means, where the floating voltage is derived from a conventional AC or DC power supply. This document also describes a battery simulator comprising means configured to provide galvanic isolation between an input terminal and an output terminal of the battery simulator. The document does not describe a DC power connector comprising an integrated electronic circuit with means providing galvanic isolation between the input and output terminal of the connector and provided with means enabling a user to choose a voltage that is required for a specific purpose from the connector itself.
It would hence be desirable to have access to a simple and versatile DC power supply system for electrical musical instruments or accessories for such instruments that could easily be adapted to different specific use situations and that would, at least substantially, provide a more optimal solution to the problem of providing electrical musical equipment with the required DC power.
DISCLOSURE OF THE INVENTION
The above and further objects, and advantages are obtained by the DC power connector according to a first aspect of the present invention and the DC power system according to a second aspect of the present invention.
Thus, according to a first aspect of the invention, there is provided a DC power connector configured for connection to the power supply input terminal on a musical instruments device or equipment, such as an effect pedal for an electric guitar, where the DC power connector contains an electronic circuit comprising means configured to provide galvanic isolation between an input terminal and an output terminal of the DC power connector, where the DC power connector is configured such that it enables a user from the DC power connector to choose the DC output voltage from the DC power connector, such that the output voltage corresponds to the DC voltage required for the musical instruments device or equipment.
In an embodiment of the first aspect, the galvanic isolation is provided by a switch-mode converter circuit comprising a transformer.
In an embodiment of the first aspect, the DC connector comprises an IDC connector (isolation displacement connector) configured to be connected to a DC supply cable supplying DC power from a DC power supply.
In an embodiment of the first aspect, the DC power connector is in electrical connection via a cable to a respective IDC connector, such that DC power can be supplied from a DC power supply via a DC power supply cable connected to the DC power supply by connecting the respective IDC connector to the DC power supply cable.
In an embodiment of the first aspect, the DC output voltage from the DC power supply is chosen by configuring the respective IDC to establish electrical contact with the appropriate wires or cores, such that the required DC output voltage is present between at least two of these wires or cores.
In an embodiment of the first aspect, the electronic circuit is provided with voltage choosing means configured to choose between different DC output voltages provided on the output terminal of the DC power connector.
In an embodiment of the first aspect, the voltage choosing means is a switch-mode converter.
The above and further objects and advantages are according to a second aspect of the present invention provided by a daisy-chain DC power supply system comprising a DC power supply cable connected to a DC power supply and at least one DC connector according to claim 2 such that the at least one DC connector(s) can be electrically connected to the DC power supply cable at those positions along the cable, where this connection is desired in a specific application.
According to a second aspect of the invention, there is provided according to a first aspect of the invention, there is provided a daisy-chain DC power supply system comprising a DC power supply cable connected to a DC power supply and at least one DC connector according to the first aspect of the invention, such that the at least one DC power connector can be electrically connected to the DC power supply cable at those positions along the cable, where this connection is desired in a specific application.
In an embodiment of the second aspect, the DC power cable comprises a wire or core at ground potential and a plurality of wires or cores at different electrical potentials relative to ground, where the configuration of the DC power cable is such that the ground wire or core, and at least one of said plurality of wires or cores at different electrical potential relative to ground can be electrically connected to said DC power connector via said IDC connector, whereby individual of said DC power connectors can be provided with DC power at different voltages relative to ground.
In an embodiment of the second aspect, the DC power cable is a ribbon cable.
In an embodiment of the second aspect, the DC power supply cable (the daisy-chain cable) is a multi-wire cable comprising at least three electrical wires, for instance one ground wire and two wires with different DC voltages relative to the ground wire. An example of a multi-wire cable suitable for use in the second aspect of the invention is a ribbon wire, but it is understood that other configurations of multi-wire cables could alternatively be used. Using IDC connectors configured for such cables it is possible to connect power supply outlets for the different pieces of equipment at the desired positions along the multi-wire cable, where each individual outlet has the DC voltage specifically required for that particular piece of equipment.
According to the aspects of the present invention there is provided a solution to the provision of electrical musical equipment of various kinds, including systems composed of different kinds of such equipment, offering the advantage of a daisy-chain cable system (such as light weight, no need for bulky power supplies and thus requiring only a very limited space) with the flexibility of different plug types, distances in-between plugs and the very important feature of galvanic isolation for each piece of equipment, such as each individual effect pedal.
By applying switch-mode conversion technology, the present invention provides a small converter offering galvanic isolation from source and determination of output voltage which will fit into the plug itself supplying the power to a piece of equipment. The plugs according to the invention can be made as different plug types and both polarities to match the needs of different pieces of equipment, either with fixed voltages or selectable with a switch individually on each plug.
According to the invention, the use of IDC connector as the input for the plug with integrated isolating converter and one cable which functions as a power bus allow making a daisy-chain where the user can decide the number of plugs on the daisy-chain cable and the distance inbetween the plugs.
BRIEF DESCRIPTION OF THE DRAWINGS
Further benefits and advantages of the present invention will become apparent after reading the detailed description of non-limiting exemplary embodiments of the invention in conjunction with the accompanying drawings, wherein figure 1 shows a schematic representation of a DC power supply connector according to an embodiment of the invention;
figure 2 shows a schematic representation of a prior art effect pedal board powered by a power supply unit;
figure 3 shows a schematic representation of three alternative embodiments of a DC power supply connector according to the invention;
figure 4 shows a schematic representation of an embodiment of a DC power supply connector according to the invention comprising an IDC connector configured for electrical connection to a four-wire ribbon cable; and figure 5 shows a schematic representation of alternative daisy-chain arrangements applying embodiments of the DC power supply connector of the present invention.
DETAILED DESCRIPTION OF THE INVENTION
The principles of the invention will be illustrated by various embodiments hereof. It is however understood that a person skilled in the art may conceive other embodiments than those actually shown and described in the detailed description of the invention and that the scope of the invention is defined by the independent claims.
With reference to figures 1(a), (b) and (c) there is shown a schematic representation of a DC power supply connector according to an embodiment of the invention generally designated by reference numeral 1. The connector comprises a housing 2 and a terminal member consisting of a cylindrical outer terminal 3 surrounding a coaxially positioned inner cylindrical terminal 5, which configuration is well known in the art. The terminal member is attached to a printed circuit board (PCB) 4 and in electrical communication with the electrical components in the connector. These comprise a galvanic isolating circuit 6, which could for instance be a switchmode converter with a transformer to achieve galvanic isolation. The terminal member 3, 5 constitutes the output of the connector that provides electrical power to a piece of electronic musical equipment, such as an effect pedal for an electric guitar. The electrical input terminal of the connector is in the shown embodiment provided as an IDC connector 7, although other electrical input connector means could alternative be used as described below, without thereby departing from the scope of the present invention.
With reference to figure 2 there is shown a schematic representation of a prior art effect pedal board 10 comprising in the shown example of four effect pedals 11, 12, 13, 14 powered by a power supply unit (PSU) 8 connected to mains voltage by a power cord 9. An electric signal is provided from an electronic musical instrument, such as an electric guitar, via line 19 to a first pedal 14 and from this pedal via intermediate lines 18, 17 and 16 respectively, to the series of pedals 13, 12 and 11. The output terminal of pedal 11 is connected via line 15 to an amplifier that via a loudspeaker provides amplified sound to the surroundings.
The PSU 8 provides a DC voltage to each of the pedals 11, 12, 13 and 14 via individual DC power connectors 8', all of which are connected to a common line 8” acting as a DC power supply bus.
In case the DC power connectors 8' provides an ohmic connection (i.e. a connection without galvanic isolation or separation between the input and the output of the connector), electrical hum may be generated caused by the ground loops (“hum loops”) 20, 21 and 22 as shown in figure 2. Galvanic isolation between the input and output terminals of the individual DC power connectors 8' will substantially solve this problem.
The desired galvanic isolation is according to the present invention obtained by a DC power connector, of which an embodiment is shown in figure 1 and which has been described above.
With reference to figures 3(a), (b) and (c) there is shown a schematic representation of three alternative embodiments of a DC power supply connector according to the invention. Thus, figure 3(a) shows an external view of one embodiment having a housing 23 and the output terminal member 24. The electrical input from a suitable DC power supply (not shown in the figure) is in this embodiment via a cable 25 that could provide ground potential and a given voltage relative to ground, for instance +9 volt. It would also be possible to apply a cable with multiple wires providing for instance ground, +9 volts, -9volts, +18 volts and -18 volts to the connector. Instead of the cylindrical cable shown in figure 3(a), other cord configurations may alternatively be used, for instance a flat cable (ribbon cable).
Figure 3(b) shows another embodiment of a connector according to the invention, in which the cable 25 has been replaced by an input socket 29, 30 that can be electrically connected to DC power supply via a corresponding connector and cable.
Figure 3(c) shown a second version of the connector shown in figure 3(b), in which a rectangular socket 34 that in the shown example comprises four electrical terminals 35 is used.
With reference to figure 4 there is shown a schematic representation of an embodiment of a DC power supply connector according to the invention in which the DC input terminal to the connector is provided by an IDC connector 39, that in the shown example is configured for electrical connection to a four-wire ribbon cable 40, where for instance wire 41 could be at ground potential, wire 42 at +9 volts relative to ground, wire 43 at +12 volts relative to ground and wire 44 at +18 volts relative to ground. Of course, other numbers of wires and other electrical potentials could also be chosen. The IDC 39 is in the shown embodiment attached to the connector housing 36 on an extension 38 to the housing 36, but the IDC 39 could alternatively be attached to the housing 36 itself, in this case without the housing being provided with an extending portion 38.
Alternatively, the four-wire ribbon cable 40 with four wires (also termed “cores”), can have the two outer cores at ground potential and the remaining two inner cores at +9 volts relative to ground. When this wire configuration is used, it does not matter which way the IDC 49 is snapped onto the cable 40. Also, if one core is damaged, there will still be a connection through the remaining cores and DC power will still be provided to the particular piece of equipment. This kind of core configuration can also be applied to ribbon cables and the corresponding IDC with other numbers of cores, provided there are an even number of cores, or - alternatively that only one ground potential core is used, the middle one.
The connector according to the different embodiments of the present invention can be used in a complete DC power supply system for electric musical equipment in many different ways. Two such systems according to the present invention are shown in figures 5(a) and (b), respectively.
With reference to figure 5(a) there is shown a schematic representation of a daisy-chain system according to the invention applying embodiments of the DC power connector of the present invention. In the illustrative example shown in figure 5(a), five DC power connectors 46 according to the invention are used. Each of these are provided with an individual IDC connector 47. A connector 45 is configured to be connected to a DC voltage source 49 and a cable 48 extends through the entire system of DC power connectors 46, where each individual of the DC power connectors 46 is connected at the appropriate position along the cable 48 via the individual IDCs 47. In this manner it is possible to provide the individual DC power connectors 46 at precisely those locations along the cable 48 that is optimal in the specific use situation.
An alternative daisy-chain system according to the invention is illustrated in figure 5(b). A common DC power bus cable 54 is at one end connected to a DC power supply 55 via the connector 50. However, contrary to the system shown in figure 5(a), each DC power connector 51 according to the invention is of the type shown in figure 3(a), i.e. provided with its individual DC input cable 56, 57, 58, respectively. At the end of each of these DC input cables there is provided a IDC connector 52, 52', 52”, respectively, that are configured to be snapped on to the DC power bus cable 54 at the appropriate positions along this cable. The IDCs may be provided with individual housings 52 via which the respective cable 56, 17, 18 is connected to the respective IDC.
Both in the system shown in figure 5(a) and 5(b), the power bus cables 48 and 54, respectively can be for instance multi-core ribbon cables, such that each individual DC power connector 46, 51 have access to different voltages, whereby the specific voltage required by each piece of electrical musical equipment can be provided via the corresponding DC power connector.
Although the present invention has been described in detail by some specific embodiments of the DC power connector and the DC power system according to the invention, it is understood that other embodiments of the DC power connectors and the DC power system could be conceived without these departing from the scope of protection defined by the claims.

Claims (11)

PATENTKRAV 1. En DC strømforsyningskonnektor konfigureret til forbindelse til strømforsyningsindgangsterminalen på en musikinstrumentindretning, som for eksempel en effektpedal til en elektrisk guitar, hvor DC strømforsyningskonnektoren indeholder et elektronisk kredsløb omfattende midler (6) konfigureret til at tilvejebringe galvanisk isolation imellem en indgangsterminal (7, 25; 29, 30; 34, 35; 39) og en udgangsterminal (3, 5; 24, 27, 32, 37) af DC strømforsyningskonnektoren, hvor DC strømforsyningskonnektoren er konfigureret således, at den tillader en bruger fra DC strømforsyningskonnektoren at vælge DC udgangsspændingen fra DC strømforsyningskonnektoren, således at udgangsspændingen svarer til den DC spænding, der er krævet til musikinstrumentindretningen.A DC power supply connector configured to connect to the power supply input terminal of a musical instrument device, such as a power pedal for an electric guitar, the DC power supply connector including an electronic circuit comprising means (6) configured to provide galvanic isolation between an input terminal (7, 25; 29, 30; 34, 35; 39) and an output terminal (3, 5; 24, 27, 32, 37) of the DC power supply connector, the DC power supply connector being configured to allow a user from the DC power supply connector to select the DC output voltage from The DC power supply connector so that the output voltage corresponds to the DC voltage required for the musical instrument device. 2. En DC strømforsyningskonnektor ifølge krav 1, hvori nævnte galvaniske isolation er tilvejebragt ved hjælp af et switch-mode konverterkredsløb omfattende en transformer.A DC power supply connector according to claim 1, wherein said galvanic isolation is provided by a switch-mode converter circuit comprising a transformer. 3. En DC strømforsyningskonnektor ifølge krav 1 eller 2, hvor DC strømforsyningskonnektoren omfatter en IDC konnektor (7, 39, 47, 53) konfigureret til at blive forbundet til et DC strømforsyningskabel (40), der leverer DC effekt fra en DC strømforsyning (49, 55).A DC power supply connector according to claim 1 or 2, wherein the DC power supply connector comprises an IDC connector (7, 39, 47, 53) configured to be connected to a DC power supply cable (40) supplying DC power from a DC power supply (49). , 55). 4. En DC strømforsyningskonnektor ifølge krav 3, hvor DC strømforsyningskonnektoren (51) er i elektrisk forbindelse via et kabel (56, 57, 58) med en respektiv IDC konnektor (52, 52', 52”), således at DC effekt kan blive leveret fra DC strømforsyningen (55) via et DC strømforsyningskabel (54) forbundet til DC strømforsyningen (55) ved at forbinde den respektive IDC konnektor (52, 52', 52”) til DC strømforsyningskablet (54).A DC power supply connector according to claim 3, wherein the DC power supply connector (51) is in electrical connection via a cable (56, 57, 58) with a respective IDC connector (52, 52 ', 52 ") so that DC power can be supplied from the DC power supply (55) via a DC power supply cable (54) connected to the DC power supply (55) by connecting the respective IDC connector (52, 52 ', 52 ”) to the DC power supply cable (54). 5. En DC strømforsyningskonnektor ifølge krav 3 eller 4, hvori nævnte DC udgangsspænding fra DC strømforsyningen (49, 55) bliver valgt ved at konfigurere de respektive IDC konnektorer (7, 39, 47, 53) til at etablere elektrisk kontakt med de rette ledninger eller kerner (41, 42, 43, 44) således, at den påkrævede DC udgangsspænding er tilstede imellem mindst to af disse ledninger eller kerner.A DC power supply connector according to claim 3 or 4, wherein said DC output voltage from the DC power supply (49, 55) is selected by configuring the respective IDC connectors (7, 39, 47, 53) to establish electrical contact with the proper wires. or cores (41, 42, 43, 44) such that the required DC output voltage is present between at least two of these wires or cores. 6. En DC strømforsyningskonnektor ifølge ethvert af de foregående krav, hvori nævnte elektroniske kredsløb er forsynet med spændingsvælgende midler konfigureret til at vælge imellem forskellige DC udgangsspændinger på nævnte udgangsterminaler (3, 5; 24, 27, 32, 37) af DC strømforsyningskonnektoren.A DC power supply connector according to any one of the preceding claims, wherein said electronic circuitry is provided with voltage selecting means configured to select between different DC output voltages at said output terminals (3, 5; 24, 27, 32, 37) of the DC power supply connector. 7. En DC strømforsyningskonnektor ifølge krav 6, hvori spændingsvælgende midler er en switch-mode konverter.A DC power supply connector according to claim 6, wherein voltage selecting means is a switch-mode converter. 8. Et daisy-chain DC strømforsyningssystem omfattende et DC strømforsyningskabel (48, 54) forbundet til en DC strømforsyning (49, 55), og mindst én DC konnektor ifølge ethvert af de foregående krav således, at den mindst ene DC strømforsyningskonnektor kan blive elektrisk forbundet til DC strømforsyningskablet (48, 54) på de positioner langs kablet, hvor konnektorenA daisy-chain DC power supply system comprising a DC power supply cable (48, 54) connected to a DC power supply (49, 55), and at least one DC connector according to any one of the preceding claims so that the at least one DC power supply connector can be electrically connected to the DC power supply cable (48, 54) at the positions along the cable where the connector 5 er ønsket i en specifik anvendelse.5 is desired in a specific application. 9. Et daisy-chain DC strømforsyningssystem ifølge krav 8, hvori nævnte DC strømforsyningskabel (48, 54) omfatter en ledning eller kerne på jordpotentiale, og en flerhed af ledninger eller kerner på forskellige elektriske potentialer i forhold til jord, hvor konfigurationen af DC strømforsyningskablet (48, 54) er således, at jordledningen eller -A daisy-chain DC power supply system according to claim 8, wherein said DC power supply cable (48, 54) comprises a wire or core at ground potential, and a plurality of wires or cores at different electrical potentials relative to ground, wherein the configuration of the DC power supply cable (48, 54) is such that the earth line or - 10 kernen, og mindst én af nævnte flerhed af ledninger eller kerner på forskellige elektriske potentialer i forhold til jord kan blive elektrisk forbundet til nævnte DC strømforsyningskonnektor via nævnte IDC konnektorer (7, 39, 47, 53), hvorved individuelle af nævnte DC strømforsyningskonnektorer kan blive forsynet med DC effekt på forskellige spændinger i forhold til jord.The core, and at least one of said plurality of wires or cores at different electrical potentials relative to ground may be electrically connected to said DC power supply connector via said IDC connectors (7, 39, 47, 53), whereby individual of said DC power supply connectors may be supplied with DC power at different voltages relative to ground. 15 10. Et daisy-chain DC strømforsyningssystem ifølge krav 9, hvori nævnte DC strømforsyningskabel (48, 54) er et båndkabel.A daisy-chain DC power supply system according to claim 9, wherein said DC power supply cable (48, 54) is a ribbon cable.
DKPA201800152A 2018-04-10 2018-04-10 Dc power supply system and devices for electric musical equipment DK179769B1 (en)

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GB2453557B (en) * 2007-10-10 2009-09-16 David Bernard Mapleston Battery simulation device
US8203320B2 (en) * 2009-01-07 2012-06-19 Linear Technology Corporation Switching mode converters
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