EP3637959A1 - Composant semi-conducteur permettant de sortir un paramètre de commande - Google Patents

Composant semi-conducteur permettant de sortir un paramètre de commande Download PDF

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Publication number
EP3637959A1
EP3637959A1 EP19200685.6A EP19200685A EP3637959A1 EP 3637959 A1 EP3637959 A1 EP 3637959A1 EP 19200685 A EP19200685 A EP 19200685A EP 3637959 A1 EP3637959 A1 EP 3637959A1
Authority
EP
European Patent Office
Prior art keywords
semiconductor component
output
antenna
unit
connections
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.)
Granted
Application number
EP19200685.6A
Other languages
German (de)
English (en)
Other versions
EP3637959B1 (fr
Inventor
Doris Keitel-Schulz
Matthias Schneider
Qi Zhu
Dieter Zipprick
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.)
Infineon Technologies AG
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Infineon Technologies AG
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
Application filed by Infineon Technologies AG filed Critical Infineon Technologies AG
Priority to EP22210759.1A priority Critical patent/EP4164337A1/fr
Publication of EP3637959A1 publication Critical patent/EP3637959A1/fr
Application granted granted Critical
Publication of EP3637959B1 publication Critical patent/EP3637959B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
    • H05B45/10—Controlling the intensity of the light
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B47/00—Circuit arrangements for operating light sources in general, i.e. where the type of light source is not relevant
    • H05B47/10—Controlling the light source
    • H05B47/175—Controlling the light source by remote control
    • H05B47/19—Controlling the light source by remote control via wireless transmission
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
    • H05B45/20—Controlling the colour of the light
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B47/00—Circuit arrangements for operating light sources in general, i.e. where the type of light source is not relevant
    • H05B47/10—Controlling the light source
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B47/00—Circuit arrangements for operating light sources in general, i.e. where the type of light source is not relevant
    • H05B47/10—Controlling the light source
    • H05B47/175—Controlling the light source by remote control
    • H05B47/196—Controlling the light source by remote control characterised by user interface arrangements
    • H05B47/1965—Controlling the light source by remote control characterised by user interface arrangements using handheld communication devices
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B47/00—Circuit arrangements for operating light sources in general, i.e. where the type of light source is not relevant
    • H05B47/20—Responsive to malfunctions or to light source life; for protection

Definitions

  • the invention relates to a semiconductor component for outputting a control parameter.
  • Luminaires mounted on the ceiling often differ in terms of their output and thus in terms of the light intensity they output.
  • Other parameters such as the light color can also differ from luminaire to luminaire.
  • there are control units on the lights that can be used, for example, to adjust the light intensity and the light color.
  • This setting can take place, for example, in that an installer either connects certain connections of the control devices to one another by wire bridges or leaves these connections free and does not make contact. It is desirable that this adjustment be carried out with less effort, without reducing the number and quality of the adjustable options.
  • a semiconductor component for outputting a control parameter which contains a receiving unit, a storage unit and an output unit.
  • the semiconductor component contains antenna connections, supply connections and at least one output connection for outputting a control parameter signal.
  • the receiving unit contains connections for connecting to an antenna from which the receiving unit receives signals.
  • the receiving unit converts the signals received by the antenna into data.
  • the data is stored in the storage unit.
  • the semiconductor device outputs an output signal based on the data stored in the memory unit at the output terminal.
  • the semiconductor component contains a calculation unit that determines the operating hours of the semiconductor component. The output signal depends both on the data stored in the storage unit and on the operating hours determined.
  • the programmed settings which are received by the receiving unit via the wireless signal by means of the antenna, are stored as data in the memory, so that they are available for operation.
  • the settings are, for example, the desired luminosity or light color for people or the speed of rotation for motors, i.e. controllable properties of a device to be driven.
  • the property of the device to be controlled can change as the number of operating hours increases.
  • the luminous intensity emitted decreases with increasing age of the illuminant. This can be counteracted by increasing the current flowing through the lamp with increasing age of the lamp.
  • the output signal changes accordingly, which signals, for example, that a higher current should be impressed when the lamp gets older.
  • the calculation unit contains a counter that counts the operating hours. Such a counter is always activated when voltage is supplied by the lamp. In this case it is assumed that the lamp is also operated if the voltage is present. The time of operation of the lamp corresponds to the time in which the semiconductor component is supplied with voltage by the supply connections. In one embodiment, the counter is not activated if no supply voltage is provided via the supply connections. If the semiconductor component is only supplied with voltage via the antenna connections, it is assumed that the lamp is not on.
  • the output signal is an analog voltage.
  • Such an analog voltage can be received as a control parameter by the circuit which operates the lamp, for example in order to set the current which is to flow through the lamp.
  • the output signal is implemented by a pulse-width-modeled signal.
  • the signals can be transmitted with a relatively high resolution.
  • the voltage supply of the semiconductor component is secured in a first mode by the two supply connections and in a second mode by energy which is obtained from the signals at the antenna connections.
  • the semiconductor component can also be programmed when the luminaire is not supplied with external voltage, which installers generally prefer when installing lamps.
  • a counter reading of the counter is stored in the storage unit and the counter reads out the counter reading from the storage unit before the counting begins. This ensures that the operating hours remain saved even when there is no external power supply.
  • the light sources can be easily replaced without replacing the semiconductor component.
  • light sources can also be easily replaced by light sources of another type.
  • the invention also relates to a luminaire with a semiconductor component, the semiconductor component being connected to a control input connection of a luminaire driver.
  • connection does not only mean a direct connection, but also an indirect connection, in which further elements are provided between the units to be connected. However, there must be a signal or energy flow between the two elements.
  • FIG. 1 shows a lamp 1 and a cell phone 2, with the help of which a control parameter for the lamp 1 can be set.
  • the lamp 1 contains an AC-DC converter 3, a semiconductor component 4, an antenna 9, an LED driver 5, a capacitor 6, a capacitor 10, a first light-emitting diode 7 and a second light-emitting diode 8.
  • the lamp 1 receives an AC voltage at its AC-DC converter 3, which this AC-DC converter 3 converts into a DC voltage between the node KVDD and the node KGND converts.
  • This DC voltage is 3 V, for example.
  • a capacitor 10, which can store electrical energy, is provided between these two nodes.
  • the semiconductor device 4 from Figure 1 has five connections.
  • a first connection A1 and a second connection 2 are connected to the two ends of the antenna 9.
  • the semiconductor component 4 is also connected to the voltage supply node KVDD and the voltage supply node KGND at two supply connections.
  • the fifth port OUT is an output port that outputs a signal for a control parameter.
  • the control parameter here is a measure of the light intensity.
  • the output connection OUT is connected via a resistor 11 to the node KSET, which is also connected to a first connection of the capacitor 6, the second connection of which is connected to the supply node KGND.
  • the voltage VSET - VGND is therefore present at the capacitor.
  • the LED driver 5 also contains two supply connections which are connected to the node KVDD and the node KGND.
  • the LED driver is connected to the node KSET at an input ISET.
  • An output connection POUT is connected to the anode of the first light-emitting diodes 7, the cathode of which is connected to the anode of the second light-emitting diode 8.
  • the cathode in turn is connected to the node KGND.
  • the LED driver 5 generates a current at its output connection POUT, the amount of which depends on the input signal received at the input ISET.
  • the LEDs 7 and 8 light up when the current flowing through them exceeds a predetermined amount.
  • the brightness of the light emitting diodes and thus their luminosity depend on the level of the current and on the age of the light emitting diodes. Depending on the placement in the room, more or less brightness is required. If, for example, there are other light sources in the vicinity of the light, an installer can set a lower light intensity than that of lights that are provided far from other light sources. The installer programs the lights 1 accordingly with his cell phone 2.
  • the semiconductor component 4 outputs a pulse-width-modulated signal at its output connection OUT.
  • This pulse-width-moderated signal is low-pass filtered using the resistor 11 and the capacitor 6 in such a way that an analog potential VSET results at the node KSET, so that with a constant pulse width ratio of the output signal at the output terminal OUT, again based on the ground potential VGND, is constant.
  • the amount of this analog potential VSET is proportional to the clock level (the duty cycle) of the pulse width modulated (PWM) signal.
  • the LED driver 5 contains the analog signal VSET generated in this way at its input ISET and sets the output current IOUT in accordance with the amount of this analog signal.
  • the lamp 1 can be set using the cell phone 2.
  • a user guides the cell phone 2 in the vicinity of the antenna 9 such that, for example, an NFC (near-field communication) connection is established between the cell phone 2 and the semiconductor component 4 via the antennas 9.
  • High-frequency signals can be transmitted via the antenna 9.
  • These high-frequency signals contain modulated signals that can be decrypted by the semiconductor component 4.
  • the modulated signals encode, for example, data that indicate the value of the desired luminosity.
  • the semiconductor component can also harvest energy from the high-frequency signals (English: energy harvesting), so that the voltage supply takes place at least in one operating mode of the semiconductor component 4 via the transmission of the high-frequency signals.
  • FIG 2 shows a basic circuit diagram of the semiconductor device Figure 1 .
  • the semiconductor component 4 contains a voltage generator 41, a receiving unit 42, a demultiplexer 43, an oscillator 44, a counter 45, an arithmetic unit 46, a pulse width signal generator 47, a control logic 48, a storage unit 49, an antenna driver 55 and an automatic start-stop 50.
  • the semiconductor component 4 is connected to the ends of the antenna 9. These connections are connected on the one hand to the voltage generator 41 and on the other hand to the receiving unit 42.
  • the voltage generator 41 serves to harvest energy from the high-frequency signal at the terminals A1 and A2. This energy is converted in such a way that a potential of, for example, 3 V compared to the ground potential VSS is output at the output of the voltage generator 41.
  • the mobile phone had modulated data for transmission to the semiconductor component 4 on the high-frequency signal, which is supplied to the connections A1 and A2 by means of the antenna. This modulated data is demolished by the receiving unit 42 and stored in the storage unit 49.
  • This storage unit 49 is designed as a non-volatile memory, which retains its data even when the semiconductor component is no longer supplied with voltage.
  • the demultiplexer 43 contains as input signals, on the one hand, the voltage EXT provided by the voltage generator 41 and, on the other hand, the voltage VDD provided by the voltage supply connections. Both voltages are referenced to the ground potential VSS at the VSS supply connection.
  • the demultiplexer 43 outputs a voltage Vin at its output. As long as voltage is present at the VDD connection, the voltage VIN is generated from VDD. If this is not present, the voltage Vin is generated from the voltage EXT, if present. This means that most of the components of the semiconductor component 4 are operated both in the mode in which a voltage supply is present at the supply connections and in the mode in which energy is generated only from the high-frequency signal. However, the oscillator 44, the arithmetic unit 46, the pulse width signal generator 47 and the start-stop machine 50 are only supplied by the externally provided voltage VDD.
  • the oscillator 44 produces a clock signal with a frequency of several megahertz. This signal is output to the clock input of the counter 45.
  • the counter 45 additionally contains the signal STST as the input signal, which is the start and the Counting signaled. This signal STST is generated by the automatic start-stop 50. This generates a signal start when the voltage VDD, after being at a very low level, exceeds a certain threshold, for example 2.6 V. In this case it is assumed that the external luminaire is also supplied with voltage so that its operating time progresses.
  • Counter 45 counts the clock events generated by oscillator 44. For this purpose, the counter 45 contains several dividers, so that it first counts the seconds. These are divided by 3600 so that the counter can end up output the hours.
  • the counted hours are stored in a part of the storage unit 49.
  • the data is saved when the counter has continued to count for four hours.
  • the meter stores the current meter reading outside of this 4 hour rhythm if the signal STST signals a stop signal.
  • This stop signal is generated by the automatic start-stop 50 when the voltage VDD falls below a certain threshold value. If this threshold is underlined, it can be assumed that the voltage will drop even further, so that the lamp will no longer be supplied with voltage.
  • the external capacitor 10, see Figure 1 ensures that the voltage VDD does not drop too quickly, so that there is sufficient time to store the current counter reading in the memory unit 49.
  • the counter 45 loads the counter reading that was last stored in the storage unit 49 into the counter 45 and starts counting again from this counter reading .
  • the receiving unit 42 receives data via the high-frequency signal, which it stores in the storage unit 49. These data contain, for example, the information with which light intensity the LEDs 7 and 8 should light up. If voltage supply is present at the supply connections VDD and VSS, a corresponding value will be output as a control parameter for the LEDs at the connection OUT. For example, it was stored in the memory unit 49 that the LEDs 7 and 8 have a luminous intensity that is 70% of the maximum luminous intensity, should shine. This value is read by the logic unit 48 from the memory unit 49 and output to the arithmetic unit 46. The arithmetic unit 46 multiplies this value by a factor which is dependent on the targeted operating hours.
  • the counter 45 and the arithmetic unit 46 form a calculation unit which determines the operating hours and, for this purpose, makes the output signal dependent both on the operating hours and on the data stored in the storage unit for the parameter for the controlled device.
  • the DA converter is provided instead of a pulse width signal generator 47, which outputs an analog direct voltage which is a measure of the output signal of the arithmetic unit 46.
  • the counter reading in the storage unit 49 can also be changed via the high-frequency signal and the receiving unit 42.
  • LEDs 7 and 8 are replaced by new illuminants, e.g. new LEDs, replaced. Accordingly, the installer can use his cell phone 2 to store a counter reading in the storage unit 49, which indicates that the operating hours are now 0 again. Accordingly, the counter 45 will count the operating hours for the new LEDs 7 and 8 in the future.
  • the semiconductor component 4 also contains an antenna driver 55, which is connected to the antenna connections and can drive the antenna. With this it is possible to transfer data from the semiconductor device to send the antenna to the cell phone 2.
  • the counter reading stored in the memory unit 49 is read out by the antenna driver 55 and transmitted to the cell phone 2 via the antenna connections A1 and A2 and the antenna 9. This allows the installer or another user to read the meter reading and knows the elapsed operating hours.
  • it is possible to read out further parts of the memory content for example to check whether parts of the memory unit are defective.
  • the antenna driver will produce a high-frequency signal, modulate the data to be transmitted onto the high-frequency signal and thus drive the antenna connections.
  • Figure 3 shows the course of the luminosity of a typical LED over the operating hours. For example, this decreases from 100% to 80% at 100,000 operating hours.
  • Figure 4 shows the course of the factor output by the counter 48 over the operating hours. This factor is initially around 75% and at 120,000 operating hours around 128%.
  • the function shown is a steadily increasing staircase function with 4 support points. The height of the steps changes at these points.
  • the support points of this function can also be stored in the memory unit 49 in one embodiment. In further embodiments it is possible to change this function by reprogramming the cell phone 2. This makes sense, for example, if a different illuminant is used, the aging process of which is different from that of the illuminants previously used.

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Circuit Arrangement For Electric Light Sources In General (AREA)
  • Led Devices (AREA)
EP19200685.6A 2018-10-12 2019-10-01 Composant semi-conducteur Active EP3637959B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP22210759.1A EP4164337A1 (fr) 2018-10-12 2019-10-01 Composant semi-conducteur permettant de sortir un paramètre de commande

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE202018004757.0U DE202018004757U1 (de) 2018-10-12 2018-10-12 Halbleiterbauteil zum Ausgeben eines Steuerparameters

Related Child Applications (2)

Application Number Title Priority Date Filing Date
EP22210759.1A Division-Into EP4164337A1 (fr) 2018-10-12 2019-10-01 Composant semi-conducteur permettant de sortir un paramètre de commande
EP22210759.1A Division EP4164337A1 (fr) 2018-10-12 2019-10-01 Composant semi-conducteur permettant de sortir un paramètre de commande

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EP3637959A1 true EP3637959A1 (fr) 2020-04-15
EP3637959B1 EP3637959B1 (fr) 2023-04-05

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EP19200685.6A Active EP3637959B1 (fr) 2018-10-12 2019-10-01 Composant semi-conducteur
EP22210759.1A Pending EP4164337A1 (fr) 2018-10-12 2019-10-01 Composant semi-conducteur permettant de sortir un paramètre de commande

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US (1) US10779382B2 (fr)
EP (2) EP3637959B1 (fr)
CN (1) CN111132411B (fr)
DE (1) DE202018004757U1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102022117138A1 (de) 2022-07-08 2024-01-11 Trilux Gmbh & Co. Kg System zur optimierten Verwertung von Leuchten

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Also Published As

Publication number Publication date
CN111132411B (zh) 2022-06-17
US10779382B2 (en) 2020-09-15
US20200120773A1 (en) 2020-04-16
DE202018004757U1 (de) 2019-01-16
CN111132411A (zh) 2020-05-08
EP3637959B1 (fr) 2023-04-05
EP4164337A1 (fr) 2023-04-12

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