EP2109226A2 - Vorrichtung zum Senden und/oder Empfangen von Funksignalen - Google Patents

Vorrichtung zum Senden und/oder Empfangen von Funksignalen Download PDF

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Publication number
EP2109226A2
EP2109226A2 EP09157422A EP09157422A EP2109226A2 EP 2109226 A2 EP2109226 A2 EP 2109226A2 EP 09157422 A EP09157422 A EP 09157422A EP 09157422 A EP09157422 A EP 09157422A EP 2109226 A2 EP2109226 A2 EP 2109226A2
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EP
European Patent Office
Prior art keywords
radio frequency
terminal
tuning circuit
radiofrequency
conductor
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Granted
Application number
EP09157422A
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English (en)
French (fr)
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EP2109226A3 (de
EP2109226B1 (de
Inventor
Michel Ramus
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Somfy SA
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Somfy SA
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Priority to PL09157422T priority Critical patent/PL2109226T3/pl
Publication of EP2109226A2 publication Critical patent/EP2109226A2/de
Publication of EP2109226A3 publication Critical patent/EP2109226A3/de
Application granted granted Critical
Publication of EP2109226B1 publication Critical patent/EP2109226B1/de
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B5/00—Near-field transmission systems, e.g. inductive or capacitive transmission systems
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/44—Details of, or arrangements associated with, antennas using equipment having another main function to serve additionally as an antenna, e.g. means for giving an antenna an aesthetic aspect
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/44—Details of, or arrangements associated with, antennas using equipment having another main function to serve additionally as an antenna, e.g. means for giving an antenna an aesthetic aspect
    • H01Q1/46—Electric supply lines or communication lines

Definitions

  • the invention relates to the field of radiofrequency remote control, that is to say via radioelectric signals, actuators controlling an electrical charge in a building, this electric charge being intended for thermal comfort, visual or light, to sun protection, closure or security of the building or its surroundings.
  • Such actuators comprise a radio frequency receiver provided with a receiving antenna, making it possible to increase the sensitivity thereof and therefore the transmission range between a radiofrequency radio transmitter, nomadic or fixed, and the radio frequency receiver.
  • the receiving antenna is a sensitive and fragile element.
  • the actuator is often placed in a metal casing which forces the antenna to be moved out of the envelope to preserve the sensitivity.
  • Licences US 2,581,983 and US 3,290,601 describe such coupling, with a connection point on each of the conductors of the mains cable located at a predetermined distance (1/8 to 1/4 wavelength) from an electrical ground of the receiver circuit. These patents also describe a frequency tuning circuit and a receiver power circuit from the mains. The two tuning and power circuits are completely separate.
  • the patent GB 702,525 describes an inductive coupling with the power supply cable of a television set, this cable being provided with coils on each end in order to strictly limit the antenna effect to the length of the cable.
  • the patent US 4,194,178 discloses a method of transmitting information using the mains cable, by carrier currents, in the case of monitoring an electric motor.
  • the two energy coupling and signal coupling circuits are totally separated.
  • a non-galvanic coupling is made between an antenna, preferably quarter wave, and the mains conductors, so as to allow simultaneous transmission by direct route and by mains coupling.
  • the coupling takes place in a rectilinear manner, which requires a length close to 10 cm in 433 MHz and can pose congestion problems.
  • radiofrequency radiator is used not the mains cable itself, but a portion of a continuous power cable included between an AC adapter, comprising a transformer-rectifier, and the base .
  • This portion of cable is insulated on both sides of the DC power supply cable by two circuit-plugs or isolation circuits that limit the propagation of guided waves on the single length of the DC power cable.
  • HF high-frequency signals are not transmitted over the mains (see column 5 lines 50 to 55).
  • the DC current flowing on the DC power cable passes through these isolation circuits, while a capacitive coupling allows the antenna link with the DC power cable.
  • the patent application EP 0 718 908 describes a nomadic radiofrequency transmitter in which the metal casing of the power cell is used as an antenna.
  • Each pole of the battery is connected to a power supply terminal of the transmitter by a conductor provided with an RF blocking inductance.
  • One of the poles of the battery is further connected to the RF output of the emitter circuit by an impedance matching circuit, promoting the maximum transfer of signal power between the RF output and the antenna constituted by the battery.
  • This adaptation circuit is not crossed by the supply current of the transmitter.
  • the device requires a large number of RF blocking inductors.
  • the devices of the prior art therefore often require intervention on a power cable, so as to allow to isolate a portion for the HF, or so as to allow a predetermined coupling in length (inductive coupling) or in position (capacitive coupling). This therefore forces the use of a specific power cable.
  • Other devices not described provide coupling with the earth cable when it exists, but the results are highly random.
  • a good sensitivity when listening to a simple receiver degrades when the actuator is activated following an order received. Such effects are not simply attributable to the interference created by the electric motor of the actuator when it operates.
  • the sensitivity of a motion command receiver degrades when the actuator is activated: the priority commands such as an emergency stop command may therefore be less well received than commands for setting up the command. movement.
  • the object of the invention is to provide a radiofrequency emission and / or reception device remedying these disadvantages and improving the radio frequency devices known from the prior art.
  • the invention proposes a device that dramatically overcomes the disadvantages of low sensitivity, especially when it is housed in a tubular-type actuator, comprising an electric motor for driving a mobile home element, and particularly when the The actuator is mounted in a metal tube surrounding it.
  • the invention notably proposes a radiofrequency device of very simple structure.
  • the radiofrequency device according to the invention is defined by claim 1.
  • the home automation device according to the invention is defined by claim 11.
  • the figure 1 represents a home automation system 10 comprising a command transmitter 1.
  • This command transmitter comprises a control keyboard 2 and a radio frequency device 3, such as a radiofrequency transmitter here represented by a symbol of an antenna.
  • the command transmitter communicates by radio frequency with an actuator 4, comprising a radiofrequency device 30 such as a radio frequency command receiver and a motor represented by its mechanical output 6 which is also the output member of the actuator.
  • the radio frequency device 30 receives the commands transmitted by the radio frequency transmitter and, if necessary, transforms them into motor control commands.
  • the radiofrequency device comprises a tuning circuit 17 and a radiofrequency unit 11.
  • the output of the actuator is connected to a mobile element 7 able to move in a first direction DIR1 or in a second direction DIR2 according to the command applied to the engine .
  • the movable element 7 is installed in a building or its surroundings, for example a shutter, a terrace awning, a garage door or a gate and moves in a space 8 of the building, for example in front of a bay.
  • the actuator is powered by the sector 9, that is to say the commercial AC network, for example 230 V, 50 Hz.
  • the control keypad includes control keys. According to the key pressed by the user, the radiofrequency transmitter emits: a movement command in the first direction, a movement command in the second direction, a stop command.
  • the actuator is provided with unrepresented electromechanical or electronic devices which make it possible to stop the motor automatically when the movable element reaches the end of its trajectory in the space 8, for example in high abutment and in low abutment if it is a rolling shutter.
  • the transmitter may alternatively be intended to control a lighting device, heating-air conditioning or ventilation, a siren alarm, a multimedia projection screen or any device ensuring comfort, energy management and / or security in a building or its surroundings (gate, garden lights, etc ).
  • the actuator is a lighting actuator, heating-air conditioning, alarm etc.
  • the command transmitter and the command receiver are of bidirectional type for exchanging information relating to the good reception or the proper execution of the orders received.
  • the installation may comprise several command transmitters and / or actuators communicating on the same radio frequency network using a common protocol and means of identification.
  • Sensors for weather detection or presence or air quality or alarm are also installable on the radio frequency network and are comparable here to issuers of orders, even if they transmit only measurement data.
  • the invention will be described in the case of an actuator powered on the sector, but it also applies to a transmitter or a sensor if it has a power supply on the sector, as shown on the figure 1 by a dotted line connecting sector 9 to the order transmitter 1.
  • the figure 2 represents an actuator 4 connected to the mains by a phase conductor 9a and by a neutral conductor 9b, also referenced AC-H and AC-N.
  • the cable comprises a protective conductor 9c connected to the ground and to the metal casing of the actuator. This protective conductor is useless in the case of a double insulated actuator.
  • the actuator 4 is equipped with a first embodiment of a radiofrequency device 30 according to the invention.
  • this radio frequency device allows a point connection with the sector, that is to say without positioning constraints on the mains power supply cable as a function of the wavelength and without insulation constraint. HF of a portion of the mains power cable relative to the rest of the mains.
  • the radiofrequency unit 11 is either purely receiver or bidirectional type, with an antenna input ANT and a control signal output OUT.
  • the radio frequency unit comprises elements known to those skilled in the art and not shown such as a power supply device, an amplifier-demodulator HF circuit, a microcontroller. As a result, the radio frequency unit is able to receive, decode control commands and possibly transmit information on the state of the actuator.
  • the control commands give rise to control signals transmitted by a control line 12 from the output of control signals OUT to an input IN of a switching unit 13 connected to an electric load 14, constituted by a motor MOT.
  • the switching unit is connected on the one hand to the electrical mains by an internal phase line 15, denoted P0, and by an internal neutral line 16, denoted N0, and is connected on the other hand to the motor whose output 6 drives the moving element when the motor is powered.
  • the switching unit may simply consist of relays for connecting the phase line.
  • internal P0 either at the first motor terminal P1 or at the second P2 motor terminal in the desired direction of movement, while connecting the third motor terminal N1 to the internal neutral line N0.
  • the switching unit comprises a rectifier followed for example by a three-phase inverter whose three outputs are connected to the three motor terminals.
  • the rectifier can also be disassociated from the switching unit.
  • the switching unit comprises a rectifier whose two output terminals are connected by relay either to the first motor terminal P1 and to the second motor terminal P2, or by inverting these two terminals, according to the desired direction of rotation.
  • the internal phase line P0 is directly connected to the phase conductor 9a, while the internal neutral line N0 is connected to the neutral conductor 9b via the tuning circuit 17.
  • the radiofrequency unit 11 comprises an electrical mass 18, denoted GND, which is connected, as close as possible to the tuning circuit, to the internal neutral line N0.
  • GND electrical mass 18, denoted GND.
  • An example of a closer connection is given in figure 5 .
  • the distance between the connection point and the tuning circuit is at least less, and preferably much lower, at a quarter of a wavelength.
  • the tuning circuit 17 comprises at least one coil L1 and a first capacitor C1, arranged in parallel and tuned to the RF frequency of the carrier used for the radio frequency transmission.
  • the tuning circuit comprises three terminals referenced 21-23 which are detailed in the description of the figure 6 .
  • the radio frequency unit is powered from the mains voltage by a power supply input PS connected to the internal phase line P0 and the GND electrical ground.
  • the internal power supply unit to the radio frequency unit transforms the alternating voltage 230 V 50 Hz into an internal voltage, for example continuous 3 V, which can be used for powering the various electronic components located in the radio frequency unit, and available between an internal VCC power line and the GND electrical ground.
  • the tuning circuit is traversed by the current I-ACT supplying the actuator, or actuator current.
  • This is a low-frequency alternating current (for example 50 Hz) whose intensity is variable according to the mode of activity of the actuator.
  • the radiofrequency component propagating on the mains cable is blocked by the parallel resonant circuit L1, C1 (or “circuit-cap") contained in the tuning circuit.
  • L1, C1 or "circuit-cap” contained in the tuning circuit.
  • the figure 3 describes a second embodiment of the radiofrequency device 30 '.
  • the tuning circuit 17 ' (denoted TUN *) comprises a third capacitor C3 and a fourth capacitor C4 arranged in series and replacing the capacitor C1.
  • the unit Radio frequency 11 comprises the GND electrical ground which is connected, as close as possible to the tuning circuit, to the internal neutral line N0.
  • This second configuration is easier to achieve because it has, in parallel capacitors C3 and C4, an inductance L2 constituted by a wire winding, avoiding inserting an intermediate socket.
  • tuning circuit Other configurations of the tuning circuit are conceivable within the scope of the invention, provided that it can be traversed directly by the actuator current I-ACT and that it blocks the passage of radiofrequency currents within the actuator current. .
  • the intensity of the current I-ACT is variable according to the mode of activity of the actuator. For example, three modes of activity are assumed depending on the state of the radio frequency unit and on the control signals that it applies to the switching unit.
  • a first mode MOD1 corresponds to a standby mode of the radio frequency unit, in which there is simply monitoring of the level sensed on the antenna input, for example at the output of a preamplifier comprising a signal level indicator, in order to activate the other elements of the RF unit if a certain RF signal threshold is exceeded.
  • a second mode MOD2 corresponds to a working mode of the radio frequency unit, in which all its elements are activated for reception, decoding or coding and interpretation of a radio frequency signal detected in the standby mode. All elements of the radio frequency unit are physically connected to, or powered through, the internal phase wire and the internal neutral wire, and the intensity I 2 of the I-ACT current is stronger than in the case previous, for example 5 times higher. It is the same for the CP2 value of the equivalent capacity presented by the activated components in this second mode of activity.
  • a third mode MOD3 corresponds to the previous working mode of the radio frequency unit, to which is added the activation of the switching unit and the power supply of the motor, or any other electrical load controlled by the switching unit.
  • the intensity I3 of the current I-ACT is this time at its nominal value, for example 1000 times higher than the previous case. It is the same for the CP3 value of the equivalent capacity presented by the activated components in this third mode of activity.
  • FIG 4 there is shown a simplified diagram equivalent to the operation of the invention according to the mode of activity. This diagram can explain the excellent performance of the topology used in the invention as regards its robustness vis-à-vis the very important modifications of the actuator supply conditions.
  • the tuning circuit shown is in its first TUN configuration.
  • the capacitor C1 is disturbed by the paralleling of a capacitive assembly constituted by the series connection of the parasitic capacitance of the sector CPM seen between phase conductors AC-H and neutral AC-N with the equivalent capacity CP1 or CP2 or CP3 of the activity mode considered.
  • the parasitic capacitance of the sector CPM depends in part on the wired structure of the cable leading the conductors AC-H and AC-N, but depends essentially on the implantation of the tracks AC-H and AC-N on the printed circuit as shown below. in figure 5 .
  • This parasitic capacity of the CPM sector is sometimes weak compared to the three equivalent capacities CP1 or CP2 or CP3.
  • the capacitive assembly becomes substantially equivalent to a single CPM capability. It is therefore sufficient that CPM is also low, before the capacitance value chosen by the designer for the first capacitor C1, so that the coupling with the sector becomes independent of it and the conditions of use of the actuator.
  • C1 4.7 pF (partially adjustable) is chosen. Although low, the capacitance of the first capacitor C1 remains high compared with the parasitic capacitance of the CPM network.
  • the capacitance value of the second capacitor C2 is determined, not only to ensure the HF connection 19, but also so as to adapt the impedance seen by the antenna input to the recommended value, for example 50 ohms.
  • C2 100 pF.
  • the role of the second capacitor C2 is then to allow an impedance matching, and not a decoupling of the potentials of the coupling point and the mass since the point of coupling is almost at the potential of the mass.
  • Certain choices of the assembly L1-C1 can avoid the second capacitor C2, the HF connection 19 being simply provided by a conducting wire.
  • the figure 5 is for illustration the case of an implementation of a radiofrequency device on a PCB double-sided printed circuit board, which we see the upper face.
  • This illustration shows the ratings of the figure 2 , but with the second embodiment of the radio frequency unit 30 ', comprising the second configuration TUN * of the tuning circuit.
  • the actuator is intended for the control of a single load, for example an electric light bulb.
  • the switching unit comprises only one unipolar REL relay and its activation transistor TR.
  • the main contacts of the relay are in the upper part, while the power contacts of its control coil are in the lower part.
  • the output cable is connected on the one hand to a track connected to the main relay output contact, equivalent to the line P1 of the figure 2 and it is directly connected on the other hand to the internal neutral line N0.
  • the radio frequency unit comprises a supply circuit REG and an RFX radiofrequency circuit, for example bidirectional, that is to say comprising all the elements necessary for receiving and transmitting radio frequency signals on an antenna input.
  • ANT As explained, this circuit also includes a microcontroller.
  • the power supply circuit comprises an internal supply line VCC which supplies the radio frequency circuit, and which also supplies the REL relay when the transistor TR is conducting.
  • the tuning circuit is that of the second configuration.
  • the inductor L2 is in the form of a winding with printed turns.
  • the number of turns is relatively high and corresponds to a frequency of the order of 100 MHz. We would have two to three times less turns for a frequency of 433 MHz.
  • a first end of the inductor L2 is connected to the neutral conductor AC-N of the mains cable.
  • the AC-H phase conductor of the mains cable is connected to a track connected to the supply circuit and to a main contact of the relay REL. This track is equivalent to the internal phase P0 of the figure 2 . Precautions are taken regarding the isolation distances between tracks respectively at the potentials of the two mains conductors.
  • the tuning circuit comprises the third capacitor C3 and the fourth capacitor C4, arranged in series with a common point to which is connected the second capacitor C2 also connected to the antenna input of the radio frequency circuit.
  • the inductance L2 is defined between the connection points of the printed turns with each free end of the third and fourth capacitors.
  • the GND electrical ground is taken immediately at the point of connection of the fourth capacitor C4 and the inductor L2. It is imperative that the electric ground of the radio frequency circuit and the power supply circuit are also connected at this point to obtain the best results, at least in this type of simplified configuration, without a ground plane. It is known that those skilled in the art use a ground plane for such printed circuits, generally having more than two layers.
  • the transistor TR enabling the power supply of the relay control coil has its collector (upper terminal) connected to the relay, its base (intermediate terminal) connected to an output OUT of the radio frequency circuit, and its emitter (lower terminal). directly connected to a track equivalent to the internal neutral line N0 of the figure 2 .
  • the base of the transistor TR is equivalent to the input IN of the switching unit of the figure 2 .
  • the width of the tracks constituting the inductor L2 is dimensioned such that the nominal intensity of the actuator current I-ACT, for example 2 amperes, can circulate without problem.
  • This dimensioning constraint is however beneficial in the as it requires to have a very low parasitic resistance, and therefore a very good quality coefficient for the resonant circuit. If the inductance L2 is made from a wire winding, it is likewise a wire diameter satisfying the same requirements.
  • the figure 6 generally describes the connection topology of the radiofrequency unit 11 with the tuning circuit 17, on the one hand by the HF link 19 connecting a radio frequency signal input or output 20, constituting its antenna input ANT, to a first terminal 21 of the tuning circuit 17.
  • the tuning circuit is connected by a second terminal 22 to one of the conductors 9b of the AC sector 9, connected by a third terminal 23 to an electrical ground (GND) of the radio frequency unit capable of blocking the conduction of radiofrequency signals between the second terminal and the third terminal and traversed between the second terminal and the third terminal by the alternating current (I-ACT) supplying the device.
  • the connection of the third terminal 23 to the electrical ground must be effective for the radio frequency signals, that is to say that it can be realized: either directly, by a conducting wire, or by a capacitive connection of impedance zero or very low at the frequency considered.
  • the different embodiments are therefore distinguished by the nature of the tuning circuit and the sampling of the signal on this tuning circuit and the nature of the connection to the ground of the latter, but all have in common that the circuit of agreement is traversed by the electric current supplying the electric charge controlled by the device.
  • the figure 7 thus describes a third embodiment of the invention in the case where a diode bridge rectifier D1-D4 is used in a power supply circuit of the radio frequency unit 11.
  • the common anodes of the diodes are connected to a first end of a C6 filter capacitor connected to ground by its second end and to the input of a regulator whose output is connected to a positive power supply terminal VCC of the radio frequency unit while the common terminal of the regulator is connected to the GND mass.
  • a tuning circuit 17 " identical to the tuning circuit 17 'of the figure 3 , comprises three terminals 21 "-23" respectively identical to the three terminals 21'-23 'of the latter.
  • a fifth capacitor C5 establishes a capacitive connection between the third terminal 23 "of the tuning circuit and the ground, For the radio frequency signals, this capacitive link is equivalent to a conducting wire.
  • the parasitic capacitance of the diode D1 can ensure the capacitive connection without the need to use a real capacitor.
  • the tuning circuit 17 is traversed, between the second terminal and the third terminal, by the alternating current flowing in the first conductor.
  • the rectifier 25 is also used to supply an electrical load such as a motor if the actuator contains an electric charge 14 'such as a brushless or collector type DC motor. The current of the load then flows in the tuning circuit.
  • a disadvantage of mounting the figure 7 is that the amplitude of the voltage on the third terminal reaches twice that of the AC sector. As the voltage amplitudes at the terminals of the tuning circuit components are very small, almost the same amplitude is found on the first terminal of the tuning circuit. It therefore requires the use of a second capacitor C2 adapted to withstand a high voltage, greater than 600V.
  • the capacitance value of the second capacitor C2 is set by the impedance matching constraint and requires some precision.
  • the fourth embodiment shown in figure 8 makes it possible to remedy this drawback by using a tuning circuit 17 "'(denoted TUN **) and still comprising a first terminal 21"' connected to a radio frequency signal input of the radio frequency unit by an HF link provided by the second capacitor C2, a second terminal 22 '' connected to the first AC-N conductor of the AC sector and a third terminal connected, by capacitive connection with a fifth capacitor C5, to the ground GND of the radio frequency circuit.
  • capacitor acts as a guide wire for radio frequency signals.
  • the tuning circuit comprises, between the second terminal and the third terminal, a seventh capacitor C7 in parallel with a third inductor L3. It is traversed between these terminals by the alternating current flowing in the first conductor and it blocks the conduction of signals radiofrequency between these two terminals, for the tuning frequency of the cap circuit constituted by the seventh capacitor C7 and the third inductor L3.
  • the winding of the third inductor L3 is coupled with that of a fourth inductor L4.
  • these two inductances are made vis-à-vis on both sides of a printed circuit, according to the same principle as the second inductor L2. All of these two coils is equivalent to a transformer.
  • the secondary circuit of the transformer comprises an eighth capacitor C8 in series with a ninth capacitor C9, the set being likewise tuned to the frequency of the signals.
  • the common point of these two capacitors serves as the first terminal 21 '' 'for the tuning circuit, this terminal being connected to the radio frequency signal input of the radio frequency unit.
  • the figure 9 is a schematic and partial sectional view of an implementation of the fourth PCB printed circuit embodiment.
  • the location of a first winding (concentric printed turns) forming the inductance L3, disposed on a first face of the printed circuit, and the location of a second winding forming the inductor L4 and arranged in the form of a hatch are shown in shaded form. on the opposite side of the printed circuit, vis-à-vis the first winding.
  • these coils are concentric. The two coils are thus coupled to form a transformer.
  • the invention remains at least twice as simple as the systems of the prior art, in particular by minimizing the number of inductors, these being always of delicate design and of large size. .
  • the worst case of figure 8 only two inductors are needed, but for the size of a single car disposed on either side of the printed circuit.
  • the rectifier 25 is also used to supply an electrical load such as a motor if the actuator contains an electric charge 14 'such as a brushless or collector type DC motor.
  • the current of the load then flows in the tuning circuit.
  • the invention has been shown distinguishing the neutral conductor and the phase conductor. Inversion of these two conductors has no effect on the proper functioning of the device.
  • the principle of the invention avoids and forbids the use, as is the case in prior art documents, of a capacitor of high value at the frequencies considered (for example with a capacitance greater than 500 pF) between the two points. input of neutral and phase conductors, so as to impose on them the same potential for radio frequencies.
  • the position of such a capacitor 24 (noted C15) has been shown in dashed line. Indeed, such a choice leads to replacing CPM by C15 in the figure 4 , which gives an equivalent capacitance brought back in parallel on C1 strongly dependent on the mode of activity and possibly large value before C1, thus strongly influencing the tuning frequency.
  • the invention is therefore directed to the case where radiofrequency radio signals are received or transmitted between the air medium and a radiofrequency unit powered by the alternating electric sector, the latter acting as a receiving or transmitting antenna of indeterminate length. It is particularly interesting in a frequency range above 100 MHz. It allows, for any order transmitter or order receiver connected to the sector, to receive or transmit orders transmitted by airwaves in aerial form by using as transmitting or receiving antenna an undetermined portion of the mains cable at the same time. neighborhood of the point of connection to the sector, this without being disturbed by the variability of the modes of activity of the issuer of orders or the order receiver.
  • the invention allows a gain in sensitivity of 30 to 50% and above all makes it possible to obtain a perfectly isotropic sensitivity diagram, even for different configurations of the device. power supply cable.
  • the space saving on the largest dimension of the printed circuit (fixed by the needs of an inductive coupling) is greater than 5 cm.
  • the invention finally has a significant advantage in terms of protection against parasitic overvoltages carried by the sector.
  • this coupling vehicle towards the radiofrequency unit all the energy parasites to high frequencies. This results in the need for protective components.
  • the tuning circuit 17 allows itself protection at high frequencies: the capacitor C1 bypassing the entire circuit in agreement, therefore also the common point between the RF link and the tuning circuit in the first TUN configuration, the capacitor C4 directly bypassing the common point between the RF link and the tuning circuit in the second TUN configuration * or the same for capacitor C9 in the third configuration TUN **.
  • the radio frequency unit is powered by the AC sector by a PS power input.
  • the radio frequency unit is powered separately, by a battery or by an accumulator or a super-capacitor connected for example to a photovoltaic panel.
  • This type of separate power supply may for example be advantageous when prohibiting any standby consumption on the alternative sector.

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Transmitters (AREA)
  • Input Circuits Of Receivers And Coupling Of Receivers And Audio Equipment (AREA)
  • Channel Selection Circuits, Automatic Tuning Circuits (AREA)
  • Near-Field Transmission Systems (AREA)
EP09157422A 2008-04-10 2009-04-06 Vorrichtung zum Senden und/oder Empfangen von Funksignalen Active EP2109226B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL09157422T PL2109226T3 (pl) 2008-04-10 2009-04-06 Urządzenie typu nadajnika i/lub odbiornika sygnałów radioelektrycznych

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR0801971A FR2930093A1 (fr) 2008-04-10 2008-04-10 Dispositif de type emetteur et/ou recepteur de signaux radioelectriques

Publications (3)

Publication Number Publication Date
EP2109226A2 true EP2109226A2 (de) 2009-10-14
EP2109226A3 EP2109226A3 (de) 2010-08-25
EP2109226B1 EP2109226B1 (de) 2012-08-29

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP09157422A Active EP2109226B1 (de) 2008-04-10 2009-04-06 Vorrichtung zum Senden und/oder Empfangen von Funksignalen

Country Status (8)

Country Link
US (1) US8044630B2 (de)
EP (1) EP2109226B1 (de)
JP (1) JP5204027B2 (de)
CN (1) CN101557032B (de)
ES (1) ES2394747T3 (de)
FR (1) FR2930093A1 (de)
PL (1) PL2109226T3 (de)
RU (1) RU2488923C2 (de)

Cited By (3)

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CN103261990A (zh) * 2010-12-28 2013-08-21 洛克希德马丁公司 安全区电压和电流接口
CN104682992A (zh) * 2015-01-22 2015-06-03 络达科技股份有限公司 无线收发芯片的电路构造
FR3061340A1 (fr) * 2016-12-26 2018-06-29 Somfy Sas Dispositif multifrequence, dispositif de commande et/ou de controle, equipement domotique et systeme multifrequence associe

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US8575872B2 (en) 2010-02-23 2013-11-05 Homerun Holdings Corporation High efficiency roller shade and method for setting artificial stops
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EP2109226A3 (de) 2010-08-25
CN101557032A (zh) 2009-10-14
EP2109226B1 (de) 2012-08-29
ES2394747T3 (es) 2013-02-05
RU2009113417A (ru) 2010-10-20
PL2109226T3 (pl) 2013-04-30
US20090258606A1 (en) 2009-10-15
CN101557032B (zh) 2014-09-03
JP2009253989A (ja) 2009-10-29
RU2488923C2 (ru) 2013-07-27
FR2930093A1 (fr) 2009-10-16
JP5204027B2 (ja) 2013-06-05
US8044630B2 (en) 2011-10-25

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