WO1996019028A1 - Verfahren und anordnung zum versorgen eines elektrischen verbrauchers mit einer geregelten elektrischen versorgungsspannung oder einem geregelten elektrischen versorgungsstrom - Google Patents
Verfahren und anordnung zum versorgen eines elektrischen verbrauchers mit einer geregelten elektrischen versorgungsspannung oder einem geregelten elektrischen versorgungsstrom Download PDFInfo
- Publication number
- WO1996019028A1 WO1996019028A1 PCT/DE1995/001711 DE9501711W WO9619028A1 WO 1996019028 A1 WO1996019028 A1 WO 1996019028A1 DE 9501711 W DE9501711 W DE 9501711W WO 9619028 A1 WO9619028 A1 WO 9619028A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- transmitter
- supply voltage
- reference value
- comparator
- consumer
- Prior art date
Links
Classifications
-
- 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
- H02J50/00—Circuit arrangements or systems for wireless supply or distribution of electric power
- H02J50/30—Circuit arrangements or systems for wireless supply or distribution of electric power using light, e.g. lasers
-
- 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
- H02J50/00—Circuit arrangements or systems for wireless supply or distribution of electric power
- H02J50/20—Circuit arrangements or systems for wireless supply or distribution of electric power using microwaves or radio frequency waves
-
- 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
- H02J50/00—Circuit arrangements or systems for wireless supply or distribution of electric power
- H02J50/70—Circuit arrangements or systems for wireless supply or distribution of electric power involving the reduction of electric, magnetic or electromagnetic leakage fields
-
- 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
- H02J50/00—Circuit arrangements or systems for wireless supply or distribution of electric power
- H02J50/80—Circuit arrangements or systems for wireless supply or distribution of electric power involving the exchange of data, concerning supply or distribution of electric power, between transmitting devices and receiving devices
Definitions
- the invention relates to a method and an arrangement for supplying an electrical consumer with an electrical supply voltage or an electrical supply current.
- electrical consumers are supplied with an electrical supply voltage or an electrical supply current from a supply source via electrical lines. With such a supply via electrical lines, potential differences between consumer and source can pose a problem.
- Potential-free (galvanically isolated) supply systems for electrical sensors as electrical consumers are known, in which the energy for the sensor is transmitted optically.
- the light of a laser diode is transmitted via an optical waveguide to a photo element array and converted by the array into electrical energy for the sensor.
- the measurement data from the sensor are likewise transmitted optically via an optical waveguide.
- a problem with such optical energy transmission systems are intensity fluctuations in the light source, in particular as a result of aging phenomena or changes in the ambient temperature.
- These intensity fluctuations of the light source can be controlled by constant current for the light source or by measuring the emitted optical power of the light source by means of a monitor photodiode or a monitor photo element and readjusting the supply current for the light source can be compensated.
- Influences of disturbance variables on the transmission path between the light source and the photoelectric converter and changes in the conversion efficiency of the photoelectric converter cannot be compensated for with these known regulations.
- the invention is therefore based on the object of specifying a method and an arrangement for supplying an electrical consumer with an electrical supply voltage or an electrical supply current, in which the disadvantages mentioned are avoided.
- the energy required by at least one consumer is transmitted in the form of electromagnetic radiation from at least one transmitter to at least one receiver.
- the receiver is electrically connected to the consumer and converts the electromagnetic radiation received by the transmitter into an electrical supply voltage or an electrical supply current for the consumer.
- regulation of the supply voltage or of the supply current to a predetermined reference value is now provided by setting the transmission power of the transmitter.
- Regulating the supply voltage or the supply current as a control variable means that the supply voltage or the supply current is measured, the measured, current value (actual value) of the supply voltage or the supply current is compared with the predetermined reference value (setpoint) and that the transmission power of the transmitter is adjusted (set, controlled) in such a way that the control difference (control deviation) between the measured supply voltage or the measured supply current and the reference value comes to lie within a predetermined tolerance interval including at least the zero point.
- This regulation enables It is necessary to compensate for undesired changes in the supply voltage or the supply current, for example on account of disturbance variables such as the temperature, aging of the transmitter and receiver or damping in the transmission link between the transmitter and the receiver.
- the transmitter's energy consumption can be reduced and the transmitter's lifespan can be increased, because the transmission power emitted by the transmitter can be adapted to the actual needs of the consumer and no excess power has to be provided to compensate for interference.
- the method and the arrangement are fundamentally suitable for supplying any electrical consumer, but are particularly suitable for supplying electronic circuits and electrical sensors or actuators.
- the electromagnetic radiation for transmitting the energy for the consumer can be selected from any wavelength range for which there are suitable transmitters for transmitting the electromagnetic radiation and receivers for converting this radiation into electrical energy.
- visible light or infrared light from a wavelength range between approximately 400 nm to approximately 1400 nm is used.
- Lasers, laser diodes, light-emitting diodes or other light sources can then be selected as transmitters.
- Suitable receivers are, for example, photoelectric converters such as photodiodes, photo elements and preferably arrays of photo elements.
- the light can be transmitted from the transmitter to the receiver via optical fibers or as a free beam.
- radio waves from the radio frequency or microwave spectrum (radio or directional radio) and corresponding radio transmitters and radio receivers can be used to transmit or receive these radio waves.
- successive control pulses are generated as long as the control difference between the measured supply voltage or the measured supply current and the reference value is less than zero and is therefore too small.
- the transmission power of the transmitter is now increased by a power divider via a control current in order to raise the excessively dropped supply voltage or the supply current again.
- a comparator circuit preferably first generates a binary comparator signal which contains the information about the sign of the control difference.
- the comparator signal assumes its first logic state when the control difference between the measured value of the supply voltage or the supply current and the reference value provided by a reference value transmitter is less than zero, and its second logic state when the control difference is greater than or is zero.
- This binary comparator signal is fed to means for generating the control pulses, which generate electrical control pulses when the comparator signal is in its first logic state.
- these means for generating the control pulses comprise an astable multivibrator, at the input of which the comparator signal is applied and at the output of which a sequence of control pulses can be tapped as long as the comparator signal is in its first logic state.
- the means for generating the control pulses comprise an astable multivibrator, at the input of which the comparator signal is applied and at the output of which a sequence of control pulses can be tapped as long as the comparator signal is in its first logic state.
- the means for generating the control pulses comprise an astable multivibrator, at the input of which the comparator signal is applied and at the output of which a sequence of control pulses can be tapped as long as the comparator signal is in its first logic state.
- Control pulses Means for modulating the radiation of the transmitter with regular pulses, one electrically with the receiver connected filter unit for filtering out these pulses and a logic circuit, for example an AND gate, to the first input of which the comparator signal and to the second input of which the pulses of the filter unit are applied.
- the logic circuit switches the pulses to its output as control pulses when the comparator signal is in its first logic state.
- the electrical control pulses are preferably transmitted as light signals or radio signals from a signal transmitter to a signal receiver and converted back into electrical pulses. These electrical pulses are then preferably standardized in terms of their pulse height and pulse duration, for example with the aid of a monostable multivibrator, and then fed to an integrator which integrates the pulses over time.
- the output current of the integrator which corresponds to the time integral of the pulses within a time window defined by the time constant of the integrator, is provided as a variable actuating current for setting the transmission power of the transmitter.
- a pulse width modulated signal (PWM signal) is used to transmit the control difference between the supply voltage or the supply current and the reference value.
- the value of the control difference is then encoded in the variable pulse width of the PWM signal.
- the transmit power of the transmitter is set with this PWM signal.
- the controller contains, in addition to a reference value transmitter for providing the reference value and a comparator for determining the control difference, also a PWM modulator which converts the control difference into the PWM signal.
- the determined control difference becomes in the controller converted into a PWM signal, which is preferably transmitted potential-free to the transmitter.
- a PWM signal which is preferably transmitted potential-free to the transmitter.
- One bit is sufficient for this transmission.
- a time-coded analog signal is transmitted by means of the PWM signal, it is possible to use a PI controller for power control of the transmitter. A particularly advantageous linear regulation of the supply voltage of the consumer is thereby realized.
- the PWM modulator is constructed from a modulation generator, a comparator and a comparator.
- the positive input of the comparator forms the input of the PWM modulator.
- the negative input of the comparator is connected to the output of the modulation generator.
- the comparator is connected downstream of the comparator.
- the output of the comparator forms the output of the PWM modulator.
- the modulation generator can in particular be a triangular generator, a sawtooth generator or also a generator whose modulation signal is asymmetrical and triangular-like and is made up of e-functions.
- the PWM modulator is designed such that it converts the control difference into a PWM signal only in a region around the reference value. This results in a higher resolution, which results in better control quality.
- the output of the receiver is buffered. This buffering of the receiver increases the interference and operational reliability of the load.
- FIG. 1 shows a basic structure of an arrangement for supplying an electrical consumer with an electrical one
- FIG. 2 and 3 each show an embodiment of a controller for such an arrangement
- FIG. 4 shows an embodiment of a power controller for such an arrangement
- FIG. 5 shows an embodiment of an arrangement with PWM control signals
- FIG. 6 an embodiment of a PWM modulator are each shown schematically. Corresponding parts are provided with the same reference numerals.
- FIG. 1 are an electrical consumer with 2, a transmitter for transmitting electromagnetic radiation R with 3, a receiver for receiving the radiation R with 4, two electrical connections of the receiver with 4A and 4B, a controller with 6 and a power divider with 7 .
- the receiver 4 converts the electromagnetic radiation R received by the transmitter 3 into an electrical supply voltage U s or an electrical supply current for the consumer 2.
- This supply voltage U s is present between the two connections 4A and 4B of the receiver 4, between which the consumer 2 is connected.
- the transmission power of transmitter 3, i.e. the power of the emitted electromagnetic radiation R can be controlled by the power divider 7.
- the power divider supplies the transmitter 3 with an electrical one
- Control current T on which the transmission power of the transmitter 3 is dependent.
- the controller 6 measures the supply voltage U for the consumer 2.
- the supply voltage U is preferably measured directly at the consumer 2 according to a four-pole measurement, as illustrated, in order to reduce voltage drops in the supply lines from Exclude receiver 4 to consumer 2 during the measurement.
- the supply voltage U can also be tapped at any two points in the supply circuit between which the consumer 2 is connected.
- the maximum supply voltage U s between the two connections 4A and 4B of the receiver 4 can also be measured.
- Power controller 7 the control current T and thus the transmission power of the transmitter 3 constant.
- a control circuit is thus implemented, the controlled variable of which is the supply voltage U and the controlled system of which consists of the transmitter 3, the transmission path between the transmitter 3 and the receiver 4 and the receiver 4. All disturbance variables acting on this controlled system, such as changes in the attenuation of the transmission path for the electromagnetic radiation R or changes in efficiency of the transmitter 3 and / or receiver 4 as a result of, for example, temperature changes or aging, can be compensated with the Regulation of the supply voltage U for the consumer 2 can be compensated.
- the manipulated variable of the control loop is the control current T of the power controller 7 or the control signal S of the controller 6.
- the controller 6 can be implemented in various ways and can be operatively connected to the transmitter 3 to control the transmission power of the transmitter 3 over different adjustment paths.
- FIG. 2 shows a first embodiment of the controller 6.
- the controller 6 contains a reference value transmitter 61 and a comparator circuit, which comprises two resistors 62 and 63 and an operational amplifier 64, as well as an astable multivibrator 65.
- the reference value transmitter 61 is connected to the
- Receiver 4 is electrically connected and generates a predetermined reference voltage, negative in the exemplary embodiment shown, as reference value REF, which is present at an output 61A of the reference value transmitter 61.
- This output 61A of the reference value transmitter 61 is electrically connected via the first resistor 62 to a first input 64A of the operational amplifier 64.
- This first input 64A of the operational amplifier 64 is electrically connected to the second terminal 4B of the receiver 4 via the second resistor 63.
- the other input 64B of the operational amplifier 64 is with the other
- Terminal 4A of the receiver 4 is electrically connected.
- the second connection 4B of the receiver 4 is at a positive potential compared to a constant potential, e.g. Zero potential (earth), at the first connection 4A.
- a constant potential e.g. Zero potential (earth)
- Operational amplifier 64 has a binary comparator signal CS at its output 64C of the operational amplifier, the first logic state of which corresponds to the case when the supply voltage U is below its desired value REF ( ⁇ U ⁇ 0) and the second logical state of which corresponds to the opposite case , if the supply voltage U is greater than or equal to the reference value REF ( ⁇ U> 0).
- the binary Comparator signal CS is fed to the astable multivibrator 65.
- the comparator circuit of the controller 6 comprises four resistors 62, 62A, 63 and 63A and again an operational amplifier 64.
- the first input 64A of the operational amplifier 64 is connected via resistor 63 to the second terminal 4B of the receiver 4 and via resistor 63A to the first connection 4A of the receiver 4.
- the second input 64B of the operational amplifier 64 is electrically connected via the resistor 62 to the output 61A of the reference value transmitter 61 and via the resistor 62A to the first connection 4A of the receiver 4.
- the reference value transmitter 61 supplies a positive reference voltage as the reference value REF.
- the electromagnetic radiation R also transmits digital, preferably rectangular, pulses to the receiver 4.
- the radiation R of the transmitter 3 is modulated accordingly. These pulses are filtered out by a filter unit 67 connected between the two connections 4A and 4B of the receiver 4 and fed as an electrical pulse P 'to an input 66B of a logic circuit 66.
- the comparator signal CS of the operational amplifier 64 is present at another input 66A of the logic circuit 66.
- the logic circuit 66 switches the pulses P 'through to their output 66 as pulses P only when the comparator signal CS is in its first logic state, that is to say when the measured supply voltage U is below the reference value REF.
- An AND gate (AND-GATE) can be provided as the logic circuit 66, for example. In the advantageous embodiments shown in FIG.
- the electrical pulses P generated by the multivibrator 65 or the logic circuit 66 are fed to a signal transmitter 60 and converted into electromagnetic pulses as control signals S, in particular into optical signals or radio signals.
- These electromagnetic control signals S can be transmitted galvanically isolated (potential-free).
- Resistors 62, 63, 62A and 63A of the comparator circuit can be fixed or adjustable, variable resistors or a combination of both. Instead of the in FIG. 2 and 3, other comparator circuits for comparing the current supply voltage U and their reference value REF, which are known per se to the person skilled in the art, are also possible.
- the supply current for the consumer 2 can be regulated instead of the supply voltage in all embodiments.
- the controller 6 is then connected in series to the consumer 2 for measuring the supply current and comprises a reference current transmitter and a corresponding comparator circuit for comparing the supply current and reference current.
- FIG. FIG. 4 shows an embodiment of the power controller 7, which is advantageous with one of the components shown in FIG. 2 and FIG. 3 illustrated embodiments of the controller 6 can be combined.
- a signal receiver 70 receives the electromagnetic control signals S of the one shown in FIG. 4, not shown, signal transmitter 60 and converts them into electrical pulse signals S '.
- These electrical pulse signals S ' are fed to a monostable multivibrator 71, which uses the pulse signals S' with respect to the pulse duration and pulse height and forms standard pulses S "which are synchronized in time with an edge of the pulse signals S '.
- These standard pulses S" now become an integrator 72 ⁇ led.
- the integrator 72 integrates the standard pulses S "over a predetermined time interval and provides at its output an integrator current 12 is available, the strength of which corresponds to the determined time integral.
- a current source 73 is also provided, which generates a constant base current II.
- the total current 11 + 12 from base current II and integrator current 12 is fed to an actuating unit 74.
- the control unit 74 supplies the control current T for the in FIG. 4 transmitters not shown 3.
- the control current T is greater, the greater the total current 11 + 12 at the input of the actuating unit 74.
- the basic current II is set so that the control difference U 0 -REF from this basic supply voltage U 0 and the reference value REF is less than zero, that is, U 0 -REF ⁇ 0 applies.
- the value (actual value) of the supply voltage or the supply current for the consumer measured by a measuring device can also be digitized and as a digital measurement signal for a digital comparison device direction are transmitted.
- the digital actual value of the supply voltage or the supply current can preferably be transmitted in the form of electromagnetic waves from a signal transmitter electrically connected to the measuring device to a signal receiver electrically connected to the comparison device.
- the digital comparison device compares the received digital actual value of the supply voltage or the supply current with a stored digital reference value. Depending on the result of this comparison, the control current T for the transmitter 3 is then changed via the power controller.
- control current T is increased if the control difference between the digital value of the supply voltage or the supply voltage and the digital reference value is less than a predetermined, non-positive first tolerance value xl ⁇ 0, and reduced if this Control difference is greater than a predetermined, non-negative second tolerance value x2> 0. If, however, the control difference lies within the tolerance interval [xl, x2], the control current T and thus the transmission power of the transmitter 3 are kept constant.
- a suitable controllable current source can then be provided as the power controller for controlling the control current T.
- the measured actual value of the supply voltage or of the supply current can of course also be transmitted as an analog value in the form of electromagnetic radiation to a comparison device, for example a comparator circuit or an analog / digital converter with a downstream digital comparison device.
- Protective device can be provided which interrupts the power supply for the transmitter 3 at a predetermined maximum value of the transmission power of the transmitter 3 or the control current T.
- monitoring (monitoring) of the transmission power of the transmitter 3 can be provided, for example via a monitor photodiode or the control current T.
- Optical transmission systems or radio transmission systems can be provided for transmitting the energy for the consumer 2.
- a laser, a laser diode, a light-emitting diode or another light source can be provided as the optical transmitter 3.
- a photo element or a photodiode or preferably an array of such photoelectric converters can be provided as the optical receiver 4.
- the transmission of light as electromagnetic
- Radiation R from the transmitter 3 to the receiver 4 can take place via optical waveguides or also via a free-beam arrangement.
- radio waves as electromagnetic radiation R
- all suitable radio transmitters can be used as transmitters 3 and radio receivers as receivers 4.
- the control signals S can also be transmitted via light waves or radio waves.
- the signal transmitter 60 and the signal receiver 70 are then respectively corresponding optical components or radio components.
- several consumers 2 can also be supplied with energy by one or more transmitters 3.
- Each consumer 2 is then assigned a receiver 4, which converts the electromagnetic radiation R from the at least one transmitter 3 into a supply voltage U s or a supply current for the electrical consumer 2.
- the electromagnetic radiation R can also be used to transmit synchronization signals for simultaneously controlling the consumers 2.
- the control current T of at least one transmitter 3 can be modulated accordingly.
- an electrical sensor is provided as the consumer 2, for example a current or voltage converter.
- the preferably digitized measurement signals of the sensor can preferably be transmitted over the same transmission path as the control signals S of the controller 6.
- a logic circuit can be provided, which leads the control signals S of the control, the digital measurement signals and corresponding data control pulses to the transmission path between signal transmitter 60 and signal receiver 70.
- the transmission path between transmitter 3 and receiver 4 can also be designed bidirectionally, in that the energy and the measurement signals of the sensor and / or the control signals S of the controller 6 are transmitted at different times or in different wavelength ranges in a time-division multiplex or wavelength division multiplex method become.
- the reference value REF for the regulation of the supply voltage U or the supply current can also be adapted or guided during the regulation if the consumer requires different power consumption. REF is then the reference variable of the control loop in the language of control technology.
- FIG. 5 shows the basic structure of a measuring system, currents and voltages being measured at high potential, for example. However, the measured values determined must be transmitted separately to evaluation electronics 5. As can be seen from this illustration, the sensor electronics 8 and the evaluation electronics 5 are spatially separated from one another. The potential separation takes place via two separate optical fibers 9 and 10. It is also possible to transmit, using different wavelengths, energy and data over a single optical fiber. A glass fiber or a plastic optical waveguide can be provided as the optical waveguide 9 or 10.
- a transmitter 3 emits electromagnetic radiation R on the evaluation electronics 5, which radiation is converted back into electrical energy in a receiver 4, also referred to as an energy converter.
- the construction of such an energy converter 4 is a photo element.
- several photo cells for example GaAs photo cells, are electrically connected in series in order to achieve a higher output voltage.
- a laser diode is used as the transmitter 3, for example, which emits light at a wavelength of approximately 850 nm.
- the voltage Ug built up by the energy converter 4 is used directly, that is to say without additional voltage regulation on site, for the power supply of the sensor electronics 8. In order to ensure a reliable power supply for the consumer 2, it is advisable to connect the output of the energy converter 4 with a Buffer capacitor. The supply voltage Ugp is then present at this buffered output.
- a controller 6 which has a voltage divider 11, a comparator 12, a PWM modulator 14 and a reference value transmitter 61, is provided for regulating the supply voltage Ugp.
- the supply voltage Ugp measured and compared with a reference voltage U ⁇ e f as a reference value REF. Since the output voltage Ugp of the energy converter 4 forms the supply voltage Ugp of the entire sensor electronics 8 and thus the value of the reference voltage UR e f is less than the value of the supply
- Voltage Ugp in the embodiment shown the comparison is made with an output voltage Ugp reduced by means of the voltage divider 11.
- the reference voltage u Ref is generated as a function of the reference value transmitter 61 and is supplied on the one hand to a positive input of the comparator 12 and on the other hand to the consumer 2, which consists, for example, of a signal amplifier and an A / D converter and is linked to a sensor 13.
- the output voltage Ugp of the voltage divider 11 is present at the negative input of this comparator 12.
- the differential voltage ⁇ U present at the output of the comparator 12, also referred to as the control difference ⁇ U is fed to the PWM modulator 14.
- the structure of the PWM modulator 14 is shown as a block diagram in FIG. 6 shown in more detail.
- the output of this PWM modulator 14 is connected to a digital mixing device 15, for example a multiplexer.
- the further input of this digital mixing device 15 is connected to the output of the consumer 2, in particular to its A / D converter.
- the generated PWM signal S PWM of the PWM modulator 14 is transmitted together with the data signal S ⁇ of the consumer 2 as a mixed signal Sp ⁇ Q-) by means of the optical fiber 10 to the evaluation electronics 5.
- the mixed signal S P WMD is separated again into the data signal S D and the PWM signal S PWM .
- the PWM signal S PWM is applied as an input signal to a power controller 7, which changes the power of the transmitter 3 in such a way that the voltage Ug or Ug p , which the energy converter 4 builds up, is kept constant.
- a de odula- Tor 16 used, the output side is connected to an interface 17.
- a processor can be provided on the interface 17 for further processing of the data signal So of the consumer 2.
- the power controller 7 is connected to the interface 17.
- a PI controller is provided as the power controller 7, for example, since a time-coded analog signal is transmitted by means of the PWM signal Sp ⁇ .
- a quasi-analog control difference ⁇ U for the supply voltage Ugp By transmitting a quasi-analog control difference ⁇ U for the supply voltage Ugp, control with particularly good properties can be implemented.
- FIG. 6 shows the block diagram of an embodiment of the PWM modulator 14 of the sensor electronics 8 of FIG. 5.
- This PWM modulator 14 contains a comparator 18, a comparator 19 and a modulation generator 20.
- the positive input of the comparator 18 forms the input of the modulator 14, the output of the comparator 19 being the output of the modulator 14 forms.
- the negative input of the comparator 18 is connected to the output of the modulation generator 20, the output of this comparator 18 being linked to the input of the comparator 19.
- a sawtooth generator is provided as the modulation generator 20. Instead of the sawtooth as the modulation voltage U M ⁇ , another periodic modulation voltage UM OC J, for example a triangle, can also be used.
- the modulation generator can also generate an asymmetrical and triangular-like modulation signal which is based on exponential functions (e-radio ions) is built up.
- the addressed modulation range for the determined control difference ⁇ U can be set via the amplitude of the modulation voltage U ⁇ od.
- the aging state of the energy transmission system can be read from the current flowing through the laser diode 3, since the supply voltage of the sensor electronics 8 is regulated. To do this, the current that is flowing only has to be related to the current that flowed when the sensor system was started up. However, it is assumed that the aging of the transmitter 3 is decisive for the aging of the entire sensor system.
- Maintenance information can thus be generated by monitoring the laser diode current.
- a source of error with which one always has to reckon is the destruction of one of the two optical fibers 9 and 10.
- the data stream that is sent from consumer 2 to evaluation electronics 5 is always interrupted, since either the power supply in sensor electronics 8 together- 20 breaks or the transmission information fails directly. Such a failure of the data stream can, however, be detected in a simple manner in the evaluation electronics 5.
- the transmitter 3 must then be switched off, since otherwise invisible, high-energy light emerges at the breaking point, which can lead to eye damage.
- the corresponding switch-off signal results from the monitoring of the continuity of the data stream.
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Optics & Photonics (AREA)
- Optical Communication System (AREA)
- Arrangements For Transmission Of Measured Signals (AREA)
- Control Of Electrical Variables (AREA)
Abstract
Description
Claims
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE59503464T DE59503464D1 (de) | 1994-12-14 | 1995-12-01 | Verfahren und anordnung zum versorgen eines elektrischen verbrauchers mit einer geregelten elektrischen versorgungsspannung oder einem geregelten elektrischen versorgungsstrom |
EP95939219A EP0797857B1 (de) | 1994-12-14 | 1995-12-01 | Verfahren und anordnung zum versorgen eines elektrischen verbrauchers mit einer geregelten elektrischen versorgungsspannung oder einem geregelten elektrischen versorgungsstrom |
CA002207795A CA2207795C (en) | 1994-12-14 | 1995-12-01 | Method and device for supplying an electric consumer with a regulated electric voltage or current |
DE19581411T DE19581411D2 (de) | 1994-12-14 | 1995-12-01 | Verfahren und Anordnung zum Versorgen eines elektrischen Verbrauchers mit einer geregelten elektrischen Versorgungsspannung oder einem geregelten elektrischen Versorgungsstrom |
JP8518055A JPH10510418A (ja) | 1994-12-14 | 1995-12-01 | 調節された供給電圧または調節された供給電流を電気負荷に供給するための方法および装置 |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE4444588 | 1994-12-14 | ||
DEP4444588.1 | 1994-12-14 | ||
DE19510660 | 1995-03-23 | ||
DE19510660.1 | 1995-03-23 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1996019028A1 true WO1996019028A1 (de) | 1996-06-20 |
Family
ID=25942857
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/DE1995/001711 WO1996019028A1 (de) | 1994-12-14 | 1995-12-01 | Verfahren und anordnung zum versorgen eines elektrischen verbrauchers mit einer geregelten elektrischen versorgungsspannung oder einem geregelten elektrischen versorgungsstrom |
Country Status (6)
Country | Link |
---|---|
EP (1) | EP0797857B1 (de) |
JP (1) | JPH10510418A (de) |
CN (1) | CN1060597C (de) |
CA (1) | CA2207795C (de) |
DE (2) | DE59503464D1 (de) |
WO (1) | WO1996019028A1 (de) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2010151466A3 (en) * | 2009-06-25 | 2011-11-17 | Mks Instruments, Inc. | Method and system for controlling radio frequency power |
US9124120B2 (en) | 2007-06-11 | 2015-09-01 | Qualcomm Incorporated | Wireless power system and proximity effects |
US9130602B2 (en) | 2006-01-18 | 2015-09-08 | Qualcomm Incorporated | Method and apparatus for delivering energy to an electrical or electronic device via a wireless link |
US9601267B2 (en) | 2013-07-03 | 2017-03-21 | Qualcomm Incorporated | Wireless power transmitter with a plurality of magnetic oscillators |
US9774086B2 (en) | 2007-03-02 | 2017-09-26 | Qualcomm Incorporated | Wireless power apparatus and methods |
DE102018220786A1 (de) * | 2018-12-03 | 2020-06-04 | Lufthansa Technik Aktiengesellschaft | Vorrichtung zur Energieversorgung von Flugzeugkomponenten |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN106357098A (zh) * | 2016-08-31 | 2017-01-25 | 锐莱特精密光电技术无锡有限公司 | 带基流输出的脉冲式激光二极管驱动源 |
JP7436156B2 (ja) | 2019-06-26 | 2024-02-21 | 京セラ株式会社 | 光給電システム |
JP6952089B2 (ja) * | 2019-10-18 | 2021-10-20 | 京セラ株式会社 | 光ファイバー給電システム |
JP2021069167A (ja) * | 2019-10-21 | 2021-04-30 | 京セラ株式会社 | 光給電システム |
JP6889226B2 (ja) * | 2019-10-24 | 2021-06-18 | 京セラ株式会社 | 光給電システムの受電装置及び給電装置並びに光給電システム |
US11438063B2 (en) * | 2019-10-24 | 2022-09-06 | Kyocera Corporation | Powered device and power sourcing equipment of optical power supply system, and optical power supply system |
JP6889227B2 (ja) * | 2019-10-28 | 2021-06-18 | 京セラ株式会社 | 光給電システムの受電装置及び給電装置並びに光給電システム |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4654573A (en) * | 1985-05-17 | 1987-03-31 | Flexible Manufacturing Systems, Inc. | Power transfer device |
DE4024843A1 (de) * | 1990-08-04 | 1992-02-06 | Telefunken Systemtechnik | Sensoranordnung |
US5099144A (en) * | 1988-12-28 | 1992-03-24 | Kabushiki Kaisha Toshiba | Apparatus for optical power transmission and optically powered system |
-
1995
- 1995-12-01 DE DE59503464T patent/DE59503464D1/de not_active Expired - Fee Related
- 1995-12-01 WO PCT/DE1995/001711 patent/WO1996019028A1/de active IP Right Grant
- 1995-12-01 EP EP95939219A patent/EP0797857B1/de not_active Expired - Lifetime
- 1995-12-01 CA CA002207795A patent/CA2207795C/en not_active Expired - Fee Related
- 1995-12-01 CN CN95196642A patent/CN1060597C/zh not_active Expired - Fee Related
- 1995-12-01 JP JP8518055A patent/JPH10510418A/ja active Pending
- 1995-12-01 DE DE19581411T patent/DE19581411D2/de not_active Expired - Lifetime
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4654573A (en) * | 1985-05-17 | 1987-03-31 | Flexible Manufacturing Systems, Inc. | Power transfer device |
US5099144A (en) * | 1988-12-28 | 1992-03-24 | Kabushiki Kaisha Toshiba | Apparatus for optical power transmission and optically powered system |
DE4024843A1 (de) * | 1990-08-04 | 1992-02-06 | Telefunken Systemtechnik | Sensoranordnung |
Non-Patent Citations (1)
Title |
---|
KUNTZ ET AL: "Energie- und Datenübertragung über Lichtwellenleiter bei intelligenten Sensoren", TECHNISCHES MESSEN, vol. 56, no. 4, April 1989 (1989-04-01), MÜNCHEN, pages 164 - 170, XP000046911 * |
Cited By (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US9130602B2 (en) | 2006-01-18 | 2015-09-08 | Qualcomm Incorporated | Method and apparatus for delivering energy to an electrical or electronic device via a wireless link |
US9774086B2 (en) | 2007-03-02 | 2017-09-26 | Qualcomm Incorporated | Wireless power apparatus and methods |
US9124120B2 (en) | 2007-06-11 | 2015-09-01 | Qualcomm Incorporated | Wireless power system and proximity effects |
WO2010151466A3 (en) * | 2009-06-25 | 2011-11-17 | Mks Instruments, Inc. | Method and system for controlling radio frequency power |
CN102484396A (zh) * | 2009-06-25 | 2012-05-30 | Mks仪器股份有限公司 | 用于控制射频功率的方法与系统 |
GB2487829A (en) * | 2009-06-25 | 2012-08-08 | Mks Instr Inc | Method and system for controlling radio frequency power |
US8659335B2 (en) | 2009-06-25 | 2014-02-25 | Mks Instruments, Inc. | Method and system for controlling radio frequency power |
US8912835B2 (en) | 2009-06-25 | 2014-12-16 | Mks Instruments Inc. | Method and system for controlling radio frequency power |
KR101571433B1 (ko) | 2009-06-25 | 2015-11-24 | 엠케이에스 인스트루먼츠, 인코포레이티드 | 무선 주파수 전력을 제어하기 위한 방법 및 시스템 |
GB2487829B (en) * | 2009-06-25 | 2016-06-15 | Mks Instr Inc | Method and system for controlling radio frequency power |
US9601267B2 (en) | 2013-07-03 | 2017-03-21 | Qualcomm Incorporated | Wireless power transmitter with a plurality of magnetic oscillators |
DE102018220786A1 (de) * | 2018-12-03 | 2020-06-04 | Lufthansa Technik Aktiengesellschaft | Vorrichtung zur Energieversorgung von Flugzeugkomponenten |
Also Published As
Publication number | Publication date |
---|---|
CA2207795C (en) | 2004-03-30 |
CN1168747A (zh) | 1997-12-24 |
DE59503464D1 (de) | 1998-10-08 |
CA2207795A1 (en) | 1996-06-20 |
EP0797857A1 (de) | 1997-10-01 |
DE19581411D2 (de) | 1997-11-27 |
CN1060597C (zh) | 2001-01-10 |
JPH10510418A (ja) | 1998-10-06 |
EP0797857B1 (de) | 1998-09-02 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
DE3138073C2 (de) | ||
EP0009220B1 (de) | Übertragungseinrichtung zur Übertragung von Signalen über eine optische Verbindung | |
EP0672284B1 (de) | Messverfahren und messvorrichtung mit analoger optischer signalübertragung | |
DE19734957C1 (de) | Verfahren und Anordnung zur Wellenlängenstabilisierung für mehrkanalige optische Übertragungssysteme | |
DE69304806T2 (de) | Laservorspannungs- und -modulationsschaltung | |
DE2847182C3 (de) | Verfahren zur Modulationsstromregelung von Laserdioden | |
EP0797857B1 (de) | Verfahren und anordnung zum versorgen eines elektrischen verbrauchers mit einer geregelten elektrischen versorgungsspannung oder einem geregelten elektrischen versorgungsstrom | |
DE69719800T2 (de) | Verfahren und vorrichtung zur lichtmodulation in einer einen mach-zehnder-modulator enthaltenden modulatorschaltung | |
DE2841433A1 (de) | Vorstromregelung von laserdioden | |
EP0237922B1 (de) | Verfahren zur Regelung der optischen Leistung eines Lasers und Schaltung zur Ausübung des Verfahrens | |
EP0010682A1 (de) | Übertragungseinrichtung zur Übertragung von analogen Signalen über eine optische Verbindung | |
DE4109683A1 (de) | System fuer optische signaluebertragung, insbesondere optisches kabelfernsehsystem, mit ueberwachungs- und dienstkanaleinrichtung | |
DE2813513A1 (de) | Vorrichtung zum stabilisieren von ausgangsdaten eines injektionslasers | |
DE69318769T2 (de) | Automatische on-line-Überwachung und Optimierung von Vermittlungsknoten eines optischen Netzes | |
DE69920850T2 (de) | Lasertreiber, Treiberverfahren und Bilderzeugungsgerät unter Verwendung desselben | |
DE69122239T2 (de) | Thermische steuerung für eine in einem kommunikationsendgerät in einer externen anlage benutzten laserdiode | |
DE3880502T2 (de) | Gerät und methode zur steuerung einer laserdiode für die erzeugung eines linearen beleuchtungsausganges. | |
EP0323871A2 (de) | Spannungs-Frequenz-Umsetzer und seiner Verwendung in einer Lichtwellenleiter-Uebertragungsanordnung | |
DE2730056A1 (de) | Regler fuer einen lichtsender | |
EP0428016A2 (de) | Modulationsstromregelung für Laserdioden | |
DE3207741C2 (de) | ||
DE3127333C2 (de) | Modulationsvorrichtung zur optischen Signalübertragung | |
DE2333907A1 (de) | Anordnung zur potentialfreien messung hochgespannter gleichstroeme | |
DE2809234C3 (de) | Halbleiterlaser-Modulatorschaltung | |
DE3045511C2 (de) | Verfahren zum Regeln des Ausgangssignals eines Halbleiterlasers und Schaltungsanordnung zur Durchführung dieses Verfahrens |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
WWE | Wipo information: entry into national phase |
Ref document number: 95196642.1 Country of ref document: CN |
|
AK | Designated states |
Kind code of ref document: A1 Designated state(s): CA CN DE JP RU US |
|
AL | Designated countries for regional patents |
Kind code of ref document: A1 Designated state(s): AT BE CH DE DK ES FR GB GR IE IT LU MC NL PT SE |
|
DFPE | Request for preliminary examination filed prior to expiration of 19th month from priority date (pct application filed before 20040101) | ||
121 | Ep: the epo has been informed by wipo that ep was designated in this application | ||
WWE | Wipo information: entry into national phase |
Ref document number: 1995939219 Country of ref document: EP |
|
ENP | Entry into the national phase |
Ref document number: 2207795 Country of ref document: CA Ref document number: 2207795 Country of ref document: CA Kind code of ref document: A |
|
ENP | Entry into the national phase |
Ref document number: 1997 849861 Country of ref document: US Date of ref document: 19970916 Kind code of ref document: A |
|
WWP | Wipo information: published in national office |
Ref document number: 1995939219 Country of ref document: EP |
|
REF | Corresponds to |
Ref document number: 19581411 Country of ref document: DE Date of ref document: 19971127 |
|
WWE | Wipo information: entry into national phase |
Ref document number: 19581411 Country of ref document: DE |
|
WWG | Wipo information: grant in national office |
Ref document number: 1995939219 Country of ref document: EP |