WO2014090830A2 - Organe régulateur pour montre-bracelet - Google Patents
Organe régulateur pour montre-bracelet Download PDFInfo
- Publication number
- WO2014090830A2 WO2014090830A2 PCT/EP2013/076138 EP2013076138W WO2014090830A2 WO 2014090830 A2 WO2014090830 A2 WO 2014090830A2 EP 2013076138 W EP2013076138 W EP 2013076138W WO 2014090830 A2 WO2014090830 A2 WO 2014090830A2
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- coils
- braking
- load impedance
- control circuit
- value
- 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.)
- Ceased
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Classifications
-
- G—PHYSICS
- G04—HOROLOGY
- G04C—ELECTROMECHANICAL CLOCKS OR WATCHES
- G04C3/00—Electromechanical clocks or watches independent of other time-pieces and in which the movement is maintained by electric means
- G04C3/16—Electromechanical clocks or watches independent of other time-pieces and in which the movement is maintained by electric means incorporating an electro-dynamic continuously rotating motor
- G04C3/165—Electromechanical clocks or watches independent of other time-pieces and in which the movement is maintained by electric means incorporating an electro-dynamic continuously rotating motor comprising a mechanical regulating device influencing the electromotor
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- G—PHYSICS
- G04—HOROLOGY
- G04C—ELECTROMECHANICAL CLOCKS OR WATCHES
- G04C10/00—Arrangements of electric power supplies in time-pieces
-
- G—PHYSICS
- G04—HOROLOGY
- G04C—ELECTROMECHANICAL CLOCKS OR WATCHES
- G04C3/00—Electromechanical clocks or watches independent of other time-pieces and in which the movement is maintained by electric means
- G04C3/04—Electromechanical clocks or watches independent of other time-pieces and in which the movement is maintained by electric means wherein movement is regulated by a balance
- G04C3/06—Electromechanical clocks or watches independent of other time-pieces and in which the movement is maintained by electric means wherein movement is regulated by a balance using electromagnetic coupling between electric power source and balance
- G04C3/064—Electromechanical clocks or watches independent of other time-pieces and in which the movement is maintained by electric means wherein movement is regulated by a balance using electromagnetic coupling between electric power source and balance the balance controlling indirectly, i.e. without mechanical connection, contacts, e.g. by magnetic or optic means
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P3/00—Arrangements for stopping or slowing electric motors, generators, or dynamo-electric converters
- H02P3/06—Arrangements for stopping or slowing electric motors, generators, or dynamo-electric converters for stopping or slowing an individual dynamo-electric motor or dynamo-electric converter
- H02P3/18—Arrangements for stopping or slowing electric motors, generators, or dynamo-electric converters for stopping or slowing an individual dynamo-electric motor or dynamo-electric converter for stopping or slowing an AC motor
- H02P3/22—Arrangements for stopping or slowing electric motors, generators, or dynamo-electric converters for stopping or slowing an individual dynamo-electric motor or dynamo-electric converter for stopping or slowing an AC motor by short-circuit or resistive braking
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P8/00—Arrangements for controlling dynamo-electric motors rotating step by step
- H02P8/14—Arrangements for controlling speed or speed and torque
- H02P8/16—Reducing energy dissipated or supplied
Definitions
- the present invention relates to a regulator member for a wristwatch, in particular an electronic regulator member for a mechanical wristwatch.
- CH-A-597636 (Ebauches SA) proposes a mechanical movement with a mainspring and a generator.
- the spring actuates, by means of a gear train, a time indicator and the generator that delivers an alternating voltage.
- the generator supplies a rectifier that charges a storage capacity to power a crystal oscillator and an electronic control circuit.
- the electronic control circuit comprises a comparison logic circuit and an energy dissipation circuit connected to the output of the comparison logic circuit, whose power absorption can be controlled by the comparison logic circuit.
- An input of the comparison logic circuit is connected to the reference circuit and another input of the comparison logic circuit is connected to the generator.
- comparison control according to the result of this comparison, the power absorption by the energy dissipation circuit and regulates in this way, through the control of the energy absorption of the control circuit, the generator running and the time indicator.
- EP-A-0239820 and EP-A-679968 disclose various electronic circuits for controlling the speed of a microgenerator in which a control circuit continuously monitors the angular position of the rotor and brakes it as soon as its angular position is in position. advanced. Because of their sensitivity to component errors and phase variations, these circuits are difficult to adjust.
- EP816955 the content of which is incorporated by reference, describes an improvement to the electronic control circuits of watchmaking microgenerators, in which the voltage rectifier comprises transistors controlled by comparators to replace the diodes after the start of the circuit.
- EP0851322 discloses a microgenerator for watch movement comprising a stator with three coils electrically connected and a rotor provided with magnetized regions. The coils are arranged asymmetrically about the axis of the rotor, to facilitate assembly.
- WO0063749 the content of which is incorporated by reference, describes a watch movement with a microgenerator.
- the wheels and gears of the gear train are electrically connected to the ground (that is to say to the plate) and made of a non-magnetic material.
- EP905589 discloses a braking circuit for a watchmaker microgenerator, comprising a counter and a braking circuit which brakes as soon as the value accumulated in the counter exceeds a threshold.
- the braking of the microgenerator of this type of circuit is generally performed by modifying the load impedance connected to the coils of the microgenerator.
- the coils are short-circuited by means of braking pulses, in order to apply a sudden braking for brief moments.
- the sudden acceleration and deceleration applied result in inefficient use of available energy.
- Other braking circuits therefore offer progressive braking by varying the value of the load impedance between several discrete values.
- Braking circuits known in this type of application have the disadvantage of reducing the available voltage across the stator coils during braking. The problem is
- US2005041 535 discloses a clock microgenerator braking circuit comprising a rectifier circuit that can switch from a simple alternating mode to a full-wave rectifier, which has the effect of increasing step by step the voltage available at the output of the rectifier, to increase the induced current and to slow down the rotor.
- the switching the operating mode of the rectifier however causes sudden changes in the braking torque applied to the generator, which is not conducive to efficient use of available energy.
- An object of the present invention is to propose an electronic regulator member for a wristwatch free of these limitations.
- an object of the present invention is to provide an electronic regulator member for a wristwatch which continues to provide sufficient electrical voltage even when the generator rotates rapidly and must be braked energetically or during a long duration.
- a regulator member comprising:
- a generator provided with a rotor and a stator with M + N coils, M and N each being an integer greater than or equal to 1; and an electronic control circuit arranged to control the braking of the rotor, wherein the circuit is arranged to control the braking exerted by the M coils differently from the braking exerted by the N coils.
- N coils are used to control the variable braking applied to the rotor, while the other M coils are not used for braking, or in any case to control braking.
- This solution has the advantage of only braking on N coils, and permanently maintain at least M coils to supply the electronic control circuit, even during maximum braking period. This avoids sudden voltage drops due to simultaneous short-circuiting of all the coils, the electronics are simplified, and / or more flexibility of operation is obtained, allowing, for example, different braking strategies used.
- M is preferably greater than or equal to two.
- N is from
- M and N are preferably both greater than or equal to two. In another embodiment, M is greater than or equal to two while N is one. In another embodiment, N is greater than or equal to two while M is one.
- a first variable load impedance Z1 is linked to the N coils.
- the braking intensity exerted by the N coils depends on the value of this impedance, which thus determines the speed of rotation and the advance of the rotor.
- a second load impedance Z2 fixed value is related to M said coils.
- the second fixed-value charging impedance Z2 may be constituted by a discrete impedance, for example a discrete resistor or integrated into an integrated circuit.
- the second fixed-value charging impedance Z2 can also be constituted, at least in part, by the input impedance of the electronic control circuit.
- a first variable-value load impedance Z1 is related to the N coils and a second variable-load impedance Z2 is related to the other M coils.
- the value of the impedance Z1 is controlled independently of the value of the impedance Z2, so as to individually control the braking exerted by the M coils and the braking exerted by the N coils.
- the braking applied by the M coils is controlled but less than the braking applied by the other N coils, so as to ensure a sufficient power supply even under maximum braking.
- the coils are distributed in more than two groups, each group being linked to a fixed or variable impedance.
- One or more groups of coils, or all groups, are linked to a variable impedance in order to control individually the braking intensity exerted by each of these groups.
- One or more groups of coils is bound to a fixed impedance, or to a variable impedance but high value, so as to guarantee a sufficient power supply even in the event of maximum braking.
- each coil is linked to a variable non-shared impedance whose intensity is controlled.
- the braking intensity exerted by the N + M coils depends on the value of their impedance, which thus determines the speed of rotation and the advance of the generator.
- the invention thus relates to a regulating member for a wristwatch comprising a rotor and stator with M + N coils, wherein the number of coils used to control the braking is less than M + N.
- N coils used to control the braking are preferably connected in series with each other, and they are directly connected in parallel with the first load impedance Z1 adjustable value.
- the first adjustable load impedance Z1 can be connected upstream of the electronic control circuit.
- the second load impedance Z2 fixed value can be traversed by a current determined by the set of M + N coils.
- the second fixed load impedance Z2 can be connected downstream of the electronic control circuit. Thus, the totality of the voltage available across the M + N coils in series is available to supply the electronic control circuit.
- the adjustable-value charging impedance can be realized with one or more fixed impedances whose serial connections and / or parallel can be modified to adjust the resulting total impedance.
- the adjustable-value load impedance may also include one or more components whose value can be controlled.
- the electronic control circuit may comprise a rectifier and voltage multiplier.
- the electronic control circuit may comprise a quartz oscillator, a pulse counting system generated from the quartz oscillator and pulses of the generator, and a control system of the first load impedance Z1. to adjust the value of the first load impedance Z1 according to the counting system.
- the pulse counting system of the generator can count the pulses from the signals across the M + N coils.
- the generator's pulse counting system can count the pulses from the signals across the M coils which are never short-circuited.
- the generator pulse counting system can count the pulses from the signals across a portion of the M coils that are never short-circuited.
- the first adjustable load impedance Z1 has a plurality of individually selectable discrete impedances for controlling the value of the first load impedance Z1 between a plurality of discrete values.
- the generator comprises M + N coils of which only N can be short-circuited.
- the other M coils can be connected to a fixed load impedance. Only the remaining N coils are used for braking. In this way, the average AC voltage available at the terminals of the electronic circuit of Regulation remains sufficient even during braking, provided that the rotor continues to run at a sufficient speed.
- the number of coils assigned to braking or the number of coils assigned solely to the generation of electric current may vary. It is possible to use a number N variable of coils assigned to braking. In this case a variable braking intensity can be obtained by changing the number of coils assigned to braking, even if the first load impedance remains fixed. For example, when the voltage accumulated in a storage capacity is large and the generator continues to rotate too quickly, it is possible
- a weak braking can be obtained by braking with a number N of coils assigned to braking; a greater braking torque can be obtained by increasing the value of N in order to brake with more coils. It is possible to change the assignment of the coils.
- a first group of coils can be used at first moments for the braking, and at second moments only for the production of electric current.
- a second group of coils can be used in these first moments for the production of electric current, and in these second moments for braking.
- a first group of coils can be connected to a first adjustable load impedance Z1.
- a second group of coils can be connected to a second adjustable load impedance.
- the value of the first adjustable load impedance Z1 may be different from the value of second adjustable load impedance.
- the electronic control circuit can control the first load impedance Z1 and the second load impedance so as to brake with a different braking intensity on the first group of coils and on the second group of coils. It is possible to use a first group of coils for a strong braking, connecting these coils with a first impedance. It is possible to use a second group of coils for lower braking, connecting these coils with a second impedance of greater value than the first impedance.
- a first group of coils can be connected to a first load impedance Z1.
- a second group of coils can be connected to a second load impedance.
- the duration of the braking by the first load impedance may be different from the braking time by the second load impedance.
- the electronic control circuit can control the value and / or the connection of the first load impedance and / or the second load impedance so as to brake during braking times or times.
- first group of coils for a strong braking, by applying a braking during a first duration on this first group of coils, and to use a second braking group for a lower braking, by applying to these coils braking for a second time shorter than the first duration.
- the braking coils can also be used for the power supply of the electronic control circuit, at least when they are not completely short-circuited.
- the braking applied to at least one coil is intermittent.
- the braking applied on N of the M + N coils can be intermittent.
- the braking applied on all the coils can be intermittent.
- Intermittent braking can be combined with the use of M + N coils of which only N is assigned to braking control. Intermittent braking can also be applied with regulating members in which all the coils exert identical braking. Intermittent braking can be applied with regulating devices in which all coils are used to control the braking intensity. [0044] Thus the invention also relates to a regulating member for a wristwatch, comprising:
- a generator provided with a rotor and a stator with M + N coils, M and N each being an integer greater than or equal to 1; and an electronic control circuit arranged to control the braking of the rotor by applying braking cycles, each cycle comprising a first braking period with a fixed braking intensity and a second braking period with a braking intensity depending on the advance of the generator.
- the intermittent braking can be obtained by interrupting the braking during the first period of duration T1, then restoring it for a second period of duration T2.
- the total cycle time T1 + T2 can be fixed, preferably 1 second, or any other value.
- the regulating member may comprise an electronic control circuit, for example an electronic control circuit as described in the rest of this document, arranged to vary the total duration T1 + T2 as a function of the energy available in the cylinder and therefore of the power reserve.
- the total cycle time T1 + T2 may take a plurality of values, for example a plurality of discrete values, depending on the energy available in the barrel.
- the electronic control circuit is arranged to indicate the power reserve by varying the duration of said cycle as a function of the energy available in a cylinder.
- an almost discharged state of the barrel may be indicated to the user by greatly increasing the duration of the cycles, for example by increasing it to a value of 3, 5 or 10 seconds, which causes an irregular movement, in a jerk, the seconds hand on the dial.
- a loaded barrel is indicated by means of short cycles causing a regular movement of the needle, while a more discharged barrel can be indicated by means of longer cycles causing a more irregular movement of the needle. Tests have shown that such jogging is unexpectedly more energy efficient than constant braking operation.
- braking cycles comprising more than two distinct periods, for example braking cycles comprising more than one braking period and / or more than one period of non-braking or constant braking.
- the duration T1 + T2 cycles can be reduced when the watch operates in chronograph mode, to allow accurate measurement of short durations.
- the intensity of the braking can be controlled by varying at each cycle the intensity of the braking applied during the second braking period T2 duration.
- the braking intensity can be controlled by varying the duration T2, or the ratio between the duration T1 and the duration T2.
- the braking intensity can be controlled by changing the number of braking coils.
- the braking intensity may depend on the advance of the generator, determined using a counter as described in the rest of the application and which incorporates the difference between the number of pulses. from a crystal oscillator and the number of pulses from the generator.
- short-circuit means "reduce the impedance to a value close to zero, but not necessarily equal to zero".
- a coil will be considered short-circuited if the load impedance connected to its output is such that the voltage across the coil drops to a much lower level (for example less than 1 percent) at voltage induced in open circuit, that is to say when the load impedance is infinite.
- Figure 1 schematically illustrates a generator according to one embodiment of the invention.
- FIG. 2 is a simplified circuit diagram of the circuit
- FIG. 3 is a simplified electrical diagram of an electronic circuit variant according to an embodiment of the invention.
- FIG. 4 schematically illustrates an adjustable load impedance Z1 according to an embodiment of the invention. 'invention.
- the regulating member for a wristwatch comprises a
- the generator of this example comprises a rotor 12 mounted on the axis 120 of a pinion or a wheel (not shown) connected to the gear of a mechanical movement not shown which it controls the speed.
- the rotor 12 comprises a plate with magnetic portions not shown, for example discrete magnets or magnetized portions, which generate a rotating magnetic field when the rotor is rotated by the gear of a mechanical movement.
- the generator further comprises a stator with coils 10, 10 'arranged so that the rotating magnetic field generated by the rotation of the rotor 12 induces induced voltages in the coils.
- the figure illustrates a construction with six coils angularly distributed in a substantially regular manner.
- the number of coils can be different.
- the coils are advantageously mounted on a printed circuit, for example a PCB, passing between the two rotor trays.
- the coils 10, 10 'of this example have a substantially ovoidal shape, or substantially trapezoidal, so that their section grows away from the center of the generator.
- This particular shape makes it possible to bring the coils closer to each other close to the center, while taking advantage of the improved coupling offered thanks to the large section of the coils on the outside.
- the ovoid shape may for example be obtained by a winding process in which the winding tension is changed at each half-turn, so as to tighten more the turns inside and outside.
- This ovoid shape can also be used in watchmaking generators used with any electronic control circuits, for example circuits as described in the rest of this application, or different circuits.
- Other types of generators can be used in the context of this invention, including the generator described in EP-B1 -851322 or that described in EP-B1-1171806, the contents of these two patents being included herein by reference.
- Figure 2 illustrates a simplified circuit diagram of the electronic circuit 2 for regulating the speed of rotation of the rotor according to the invention.
- a number of elements of this circuit may be identical to those of EP-B1-1276024, the contents of which are hereby incorporated by reference.
- Most of the elements of this circuit with the exception of the coils 10, 10 ', the quartz 23 and possibly the capacitance C2, may be embodied as an integrated circuit, for example an asic circuit.
- the electrical coils 10, 10 'of the stator described above are connected in series and grouped into two groups.
- the element Z1 is a variable value load impedance, in this embodiment a single resistor, connected in parallel with the N coils 10 'for braking.
- An exemplary embodiment of the impedance Z1 is illustrated and will be described below in relation to FIG. 4.
- the load impedance Z1 comprises several resistors 910-916 of variable value connected in parallel. Switches 901 -906 are provided in each branch of the circuit and can be individually selected by means of a signal
- the element 3 is a rectifier and voltage multiplier circuit which makes it possible to convert the AC voltage across the terminals of the M + N coils into a continuous and multiplied voltage Vdd, which is stored in the storage capacitor C2 and supplies the power supply. entire electronic circuit.
- the circuit shown is based on the use of diodes D1-D3 and capacitors C1 and C3 to rectify and multiply the current. To avoid voltage drops in the diodes, they can advantageously be replaced, after start-up, by transistors controlled by comparators
- C2 capacity is a valuable storage capacity
- the impedance Z2 is a load impedance, in this example a simple resistor, preferably of fixed value, related to the M feed coils 10 and in this embodiment also, related to the N braking coils 10 '.
- "Linked" in this context means that a variation of the load impedance Z2 would affect the current generated by the M + N coils, or in other words that the current flowing through this load impedance Z2 depends on the induced voltage by the M + N coils 10, 10 '.
- the term "fixed” means that the value of the impedance Z2 is not adjustable and that it is not adjusted voluntarily; variations in this impedance may, however, occur during use.
- This impedance Z2 may be constituted by a discrete component, by an integrated component, or possibly be constituted by the input impedance of the electronic control circuit 2.
- the load impedances Z1, Z2 illustrated in Figure 2 are simple resistors. Other types of impedances, including impedances with capacitive or inductive components, may be employed.
- the element 20 is a hysteresis comparator which compares at each instant the voltage VM2 across the M + N coils 10, 10 'and generates a rectangular signal that changes direction at each polarity reversal. The rising and / or falling flanks of this rectangular signal can therefore be used as pulses whose rate determines the rotation frequency of the rotor 12. In a variant, the comparator 20 could compare the voltage VM1 across the unbraked coils 10, or across a portion of these unbraked coils. .
- the element 23 is a quartz forming with the oscillator 24 a reference oscillator whose frequency of the output signal is divided by the frequency divider 25, to correspond with the speed of rotation to which one wishes to subject the 12. The "down" output signal at the output of this frequency divider is provided at the input of
- the element 21 is an anti-coincidence circuit which makes it possible to shift the pulses at the output of the comparator 20 with respect to the pulses at the output of the frequency divider 25 when these two
- the bidirectional counter 22 stores a binary value B0: B31 which is incremented at each "up” pulse from the generator, and decremented at each "down” pulse from the crystal oscillator 23, 24.
- This signal B0: B31 is used to adjust the value of the variable impedance Z1, and thus to adjust the braking torque.
- a logic not shown can be provided at the output of the counter 22, or as part of this counter, in order to adjust the digital signal B0: B31 and thus the braking intensity according to a linear relationship or preferably non-linear compared to the counted value. For example, in order to avoid momentary voltage drops, it is possible to eliminate any braking when the rotor 12 of the generator 10, 12 rotates very slowly, even if it is in advance with respect to the signal of the quartz oscillator, so that the voltage value allowing
- the applied braking torque may for example comprise a component proportional to the momentary difference in speed, to the derivative of this difference, and / or to the integral of this difference.
- a massive braking can also be provided in case of excessive speed, or conversely very slow speed, to stop the clock when the displayed indications may be incorrect.
- the braking is preferably interrupted in the start-up phase, in order to rotate the rotor in free rotation and to reach as quickly as possible an induced voltage sufficient to power the electronics.
- Braking is therefore performed only by means of the N coils 10 'which are related to the variable load impedance Z1 whose value decreases when the value counted by the counter 22 increases, in order to brake the generator by a large current .
- the other M coils 10 are connected to a substantially constant load impedance Z2, so that the alternating voltage VM1 across these other coils remains substantially constant (in average value or RMS), even when the generator is braked. This keeps a voltage VM2 across the coils 10, 10 'sufficient to power the electronic circuit 2, even during braking.
- the supply voltage Vdd is maintained at a high value, preferably sufficient to power the electronic circuit 2, even during the braking periods.
- the braking torque applied with a reduced number of coils is reduced. It is therefore possible, thanks to this circuit, to brake longer than if the braking was done abruptly with all the coils.
- the device is dimensioned so that during normal use of the watch, the rotor is braked permanently, or almost constantly, with varying braking intensities, in order to run at its nominal speed.
- This mode of operation saves the available energy and therefore the power reserve of the watch, while limiting the risk that the electronic circuit stops following a sudden braking. In this way, such permanent braking can be used to make the circuit and the system less sensitive to disturbances.
- braking cycles are applied to the rotor.
- Each cycle comprises, for example, a first period of duration T1 during which the rotor rotates freely without being braked by the coils, and a second period of duration T2 during which the intensity of the braking is controlled as a function of the advance of the generator, way to control the running of the watch.
- the watch thus advances at an irregular speed, accelerating during periods of duration T1 and decelerating during periods of duration T2. Tests have shown that, unexpectedly, this mode of operation is economical and allows to extend the running time of the watch. It is possible to provide cycles having more than one braking period and / or more than one non-braking period. It is possible not to interrupt the braking completely during the time T1, but to reduce it, or to apply a constant braking.
- the total duration T1 + T2 of each cycle can be fixed.
- the ratio between T1 and T2 can vary so as to control the running of the watch by adjusting the duration of the braking.
- the duration of each cycle T1 + T2 is advantageously short enough so that the user does not perceive, or hardly, the irregular movement of the seconds hand.
- This duration can be adjusted according to the energy available in the barrel, so as to extend the cycle time and operate more effectively when the barrel discharges.
- a very discharged barrel state, shortly before the watch stops, can be indicated by means of a very long cycle time T1 + T2, for example greater than 3 seconds, preferably greater than 5 seconds, for example 10 seconds. Such a duration produces a jerky movement of the second hand, very noticeable, indicating to the user the need to reassemble his watch.
- the fixed load impedance Z2 for the coils 10 and 10 'supplying the circuit is downstream of the rectifier and multiplier 3, while the variable load impedance Z1 for the coils 10' also serving when braking are upstream of this rectifier 3. It is also possible, as illustrated schematically in Figure 3, to provide a fixed load impedance Z2 for the coils 10 and 10 'supplying the circuit upstream of the rectifier and multiplier 3; the other components of the circuit may be identical to those of Figure 2.
- a first group of M coils can be linked to a first adjustable value load impedance and a second group of N coils can be linked to a second adjustable value load impedance, the value of the first load impedance being different. the value of the second load impedance, at least at certain times.
- This allows for example to use all the impedances for braking, but with different contributions.
- a first group of coils can be used to brake for a first duration, for example permanently, while another group of separate coils can be used to brake only for a second period non-zero but less than the first duration .
- the interruption time may vary depending on the coils.
- the selection of coils 10 'whose value is adjusted to vary the braking torque is changed.
- a first group of coils is used for braking at one time, and a second group is used for braking at a second time.
- FIG. 4 illustrates an example of an adjustable value charging impedance Z1 according to one embodiment of the invention.
- the value of the impedance Z1 depends on the digital signals B0-B31 of the counter 22 (or of the digital signals derived from the output signals of the counter).
- the impedance Z1 can be connected directly to the terminals of the braking coils 10 ', upstream of the rectifier 2. It is also possible to provide a load impedance for the braking downstream of a rectifier, and / or a plurality of variable-value impedances individually allocated to braking with the different braking coils 10 '.
- the impedance Z1 comprises in this embodiment example several resistors 900 to 906, for example resistors integrated into an integrated circuit. Each resistor 900 to 906 is connected in series with a switch 910 to 916, respectively.
- the switches 910 to 916 are controlled by the signals B0 to B4 and B30-B31 from the counter 22 (or a logic downstream of this counter 32).
- the value of the various resistors 910 to 916 is inversely proportional to the weight of the bits B0 to B31, so that the activation of the bit B31, for example, produces a much greater braking than the activation of the bit B0.
- the switches 900 to 906 may consist of N-type field effect transistors, which are off when the gate voltage is zero, and passers-by if this voltage takes the logic value 1.
- An additional field effect transistor 920 can be put in series with all the resistors, in order to increase the impedance when this transistor is blocked and no braking is desired.
- This transistor 920 may for example be a P-channel transistor controlled by an active LV signal (at 0) for example during startup, or at other times when the braking must be interrupted.
- an active LV signal at 0
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- Control Of Eletrric Generators (AREA)
Abstract
Description
Claims
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201380064882.1A CN105143997B (zh) | 2012-12-11 | 2013-12-10 | 用于腕表的调节本体 |
| EP13802394.0A EP2932334A2 (fr) | 2012-12-11 | 2013-12-10 | Organe régulateur pour montre-bracelet |
| US14/649,512 US9746831B2 (en) | 2012-12-11 | 2013-12-10 | Regulating body for a wristwatch |
| JP2015546058A JP2016501371A (ja) | 2012-12-11 | 2013-12-10 | 腕時計用緩急調整部品 |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH02770/12A CH707340A2 (fr) | 2012-12-11 | 2012-12-11 | Organe régulateur pour montre-bracelet. |
| CH2770/12 | 2012-12-11 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| WO2014090830A2 true WO2014090830A2 (fr) | 2014-06-19 |
| WO2014090830A3 WO2014090830A3 (fr) | 2014-10-02 |
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ID=49726797
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/EP2013/076138 Ceased WO2014090830A2 (fr) | 2012-12-11 | 2013-12-10 | Organe régulateur pour montre-bracelet |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US9746831B2 (fr) |
| EP (1) | EP2932334A2 (fr) |
| JP (1) | JP2016501371A (fr) |
| CN (1) | CN105143997B (fr) |
| CH (1) | CH707340A2 (fr) |
| WO (1) | WO2014090830A2 (fr) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101563438B1 (ko) * | 2014-12-11 | 2015-10-27 | 성균관대학교산학협력단 | 발진 주파수를 보정할 수 있는 주입 동기 주파수 분주기 |
| USD926053S1 (en) * | 2019-11-27 | 2021-07-27 | Joojoomee Inc. | Watch |
Family Cites Families (21)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1326054A (en) * | 1969-08-18 | 1973-08-08 | Citizen Watch Co Ltd | Electronic time piece |
| CH597636B5 (fr) | 1972-11-21 | 1978-04-14 | Ebauches Sa | |
| CH665082GA3 (fr) | 1986-03-26 | 1988-04-29 | ||
| JPH0750993B2 (ja) * | 1989-09-08 | 1995-05-31 | 株式会社セコー技研 | 回生制動のできるリラクタンス型電動機 |
| CH686332B5 (fr) | 1994-04-25 | 1996-09-13 | Asulab Sa | Pièce d'horlogerie mué par une source d'énergie mécanique et régulée par un circuit électronique. |
| CN2225104Y (zh) * | 1994-12-05 | 1996-04-17 | 山东工程学院科技开发总公司 | 飞轮式永磁恒压发电机 |
| US5637974A (en) * | 1995-04-21 | 1997-06-10 | Itt Automotive Electrical Systems, Inc. | Method and apparatus for hybrid direct-indirect control of a switched reluctance motor |
| DK0848842T3 (da) | 1996-06-26 | 1999-11-08 | Konrad Schafroth | Urværk |
| FR2752496B1 (fr) * | 1996-08-14 | 1998-10-23 | Ebauchesfabrik Eta Ag | Transducteur electromecanique comportant deux rotors a aimants permanents |
| CH689469A5 (fr) * | 1996-12-18 | 1999-04-30 | Patek Philippe Sa | Convertisseur d'énergie mécano-électrique et pièce d'horlogerie comportant un tel convertisseur d'énergie. |
| EP0851322B1 (fr) | 1996-12-23 | 2000-05-17 | Ronda Ag | Micro-générateur, module et pièce d'horlogerie, contenant un tel micro-générateur |
| US6314059B1 (en) | 1997-09-30 | 2001-11-06 | Seiko Epson Corporation | Electronically controlled, mechanical timepiece and control method for the same |
| EP1367690B1 (fr) * | 1998-03-19 | 2005-12-14 | Light Engineering Corporation | Moteur à turbine à gaz accouplée directe à un générateur électrique sans engrénage réducteur |
| WO2000029910A1 (fr) * | 1998-11-17 | 2000-05-25 | Seiko Epson Corporation | Piece d'horlogerie mecanique a commande electronique |
| CN2362227Y (zh) * | 1999-02-03 | 2000-02-02 | 张兰阶 | 单相调压式无级调速电动机 |
| WO2000063749A1 (fr) | 1999-04-21 | 2000-10-26 | Conseils Et Manufactures Vlg Sa | Mouvement d'horlogerie comprenant un microgenerateur et procede de controle pour mouvements d'horlogerie |
| WO2001035171A1 (fr) * | 1999-11-11 | 2001-05-17 | Seiko Instruments Inc. | Piece d'horlogerie mecanique dotee d'un mecanisme de commande de l'angle de rotation du balancier annulaire regle |
| JP4032792B2 (ja) * | 2001-03-30 | 2008-01-16 | セイコーエプソン株式会社 | 電子機器およびその時間精度測定方法 |
| US6826124B2 (en) * | 2002-12-04 | 2004-11-30 | Asulab S.A. | Timepiece with power reserve indication |
| JP4123273B2 (ja) | 2003-05-30 | 2008-07-23 | セイコーエプソン株式会社 | 多機能時計 |
| EP1981155A2 (fr) * | 2007-04-09 | 2008-10-15 | Seiko Epson Corporation | Moteur sans balai |
-
2012
- 2012-12-11 CH CH02770/12A patent/CH707340A2/fr not_active Application Discontinuation
-
2013
- 2013-12-10 WO PCT/EP2013/076138 patent/WO2014090830A2/fr not_active Ceased
- 2013-12-10 US US14/649,512 patent/US9746831B2/en not_active Expired - Fee Related
- 2013-12-10 EP EP13802394.0A patent/EP2932334A2/fr not_active Withdrawn
- 2013-12-10 JP JP2015546058A patent/JP2016501371A/ja active Pending
- 2013-12-10 CN CN201380064882.1A patent/CN105143997B/zh not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JP2016501371A (ja) | 2016-01-18 |
| CH707340A2 (fr) | 2014-06-13 |
| US20150316894A1 (en) | 2015-11-05 |
| CN105143997B (zh) | 2018-09-04 |
| CN105143997A (zh) | 2015-12-09 |
| EP2932334A2 (fr) | 2015-10-21 |
| WO2014090830A3 (fr) | 2014-10-02 |
| US9746831B2 (en) | 2017-08-29 |
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