EP0806710B1 - Stabilisation einer elektronischen Schaltung zur Regelung des mechanischen Gangwerks einer Zeitmessvorrichtung - Google Patents

Stabilisation einer elektronischen Schaltung zur Regelung des mechanischen Gangwerks einer Zeitmessvorrichtung Download PDF

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Publication number
EP0806710B1
EP0806710B1 EP97107371A EP97107371A EP0806710B1 EP 0806710 B1 EP0806710 B1 EP 0806710B1 EP 97107371 A EP97107371 A EP 97107371A EP 97107371 A EP97107371 A EP 97107371A EP 0806710 B1 EP0806710 B1 EP 0806710B1
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Prior art keywords
pulses
braking
rotor
inhibition
pulse
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French (fr)
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EP0806710A1 (de
EP0806710B2 (de
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Ermanno Bernasconi
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Asulab AG
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Asulab AG
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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

Definitions

  • the present invention relates to a timepiece comprising an electrical energy generator comprising a rotor and means for supplying electrical energy in response to a rotation of the rotor, and being regulated by a electronic circuit comprising means for braking the generator rotor according to the preamble of claim 1.
  • a source of mechanical energy drives an energy generator electric to supply the electronic circuit.
  • the generator rotor itself can be braked by the electronic circuit to regulate movement mechanical by slaving it for example, on the frequency of a quartz.
  • the interest of these timepieces is to have a very precise movement, regulated by quartz or other, without the need for a time battery or accumulator limited life.
  • Such a timepiece is described for example in US-A-3,937,001 in which the pulsation of the alternator voltage of the generator is compared to the frequency of a quartz.
  • the rotor is braked by short-circuiting the generator by a resistor. But when the movement takes a certain advance, the duration of braking generator rotor can become very large, risk of seeing the supply voltage from the generator become insufficient for the circuit electronic.
  • Figures 1 to 4 illustrate the shape of the voltage alternative Ug and SM measurement pulses obtained with two state of the art threshold comparators. Of measurement results performed with a threshold comparator of zero voltage are illustrated in Figures 1 and 2.
  • the Figure 1 represents the evolution of Ug voltage in function of time, the value 0 of the corresponding voltage at the zero threshold.
  • FIG. 2 represents as a function of time, the SM pulses at the output of the zero threshold comparator, the measurement signal SM varying from a state "0" to a state "1" according to the result of the comparison.
  • an electrical parasite on Ug voltage, at the moment t1 causes the appearance of a parasitic pulse I1 on the measurement signal SM. This electrical parasite can be simply carry over mass noise.
  • the threshold of the comparator must meet two contradictory conditions. Firstly, it must be high enough to hide the parasitic pulses. On the other hand, it must be enough low so that the braking pulses appear when the generator voltage is low, as we have seen previously.
  • An object of the present invention is to stabilize the operation of a timepiece with movement mechanical regulated by an electronic circuit.
  • an object of the invention is to to know the origin of such dysfunctions and to remedy.
  • Another goal is to make a timepiece miniature with a simple electronic circuit and reliable.
  • the thresholds of the circuits used previously depends in fact on the value of the supply voltage. Surprisingly, when braking the rotor, the weakening of the voltage of the generator is enough to derive the threshold of the comparator which then generates a new pulse. So for a current comparator such as a amplifier Schmidt with a low positive Uth threshold and a low negative Utb threshold, the comparator delivers duplicates pulses instead of delivering just one. Indeed, the drop in Ug voltage supplied by the generator can reach a value greater than the positive threshold Uth of comparator, thus triggering the appearance of a parasitic pulse. This phenomenon only occurs when braking, so right after the appearance of the first impulse.
  • a part timepiece including an electric power generator comprising a rotor and means for providing said electrical energy in response to a rotation of said rotor, a source of mechanical energy mechanically coupled to said rotor to drive it in rotation, measuring means coupled to said generator to generate pulses of measurement of the pulsation of an alternating voltage supplied by the generator which corresponds to the pulsation of the rotor, braking means responding to a command to braking to apply a braking torque to said rotor, and an electronic circuit comprising means for reference to produce a signal having a frequency of reference, and control means arranged at control said braking means when said measurement pulses are ahead of said reference signal so the reference frequency regulates the pulsation of said rotor and said source mechanical, this part being characterized in that said electronic circuit further comprises means synchronous inhibition (Inh) of the measurement pulses and arranged so that a duplication of said pulses of measure be deleted.
  • Inh synchronous inhibition
  • the detection of the measuring pulses is inhibited, so as to remove such duplication pulses without significantly delaying braking by relation to the change in sign of the tension of the generator.
  • the invention provides that the means of inhibition are correlated with a command of braking provided by the control loop.
  • a preferred embodiment is characterized in that that the means of inhibition generate a command for braking, the timing of this command being controlled by the servo loop.
  • Another embodiment provides that the means inhibit have a time base and respond to the appearance or disappearance of an impulse from measured.
  • the electromechanical part of the timepiece according to the invention is shown schematically in the figure 5. It includes a source 2 of mechanical energy like a spiral spring, coupled through gear trains 4 symbolized by mixed lines at means for displaying the time, such as dial, the source 2 of mechanical energy being coupled also to a rotor 3a of an energy generator electric 3.
  • the generator 3 also includes a coil 3b inductive, the rotor 3a comprising a bipolar magnet conventionally represented by an arrow. This part will not be described in detail as it may be carried out in various ways, well known to specialists.
  • the source 2 of mechanical energy causes the rotation of the rotor 3a and there appears an alternating voltage Ug at the terminals B0, B1 of the coil 3b.
  • the terminal B0 is considered as the reference terminal having a reference potential V 0 .
  • This alternating voltage Ug is applied to a rectifier 5 for supplying DC voltage to a circuit motion control electronics 1.
  • a rectifier 5 for supplying DC voltage to a circuit motion control electronics 1.
  • An example of preferred embodiment of rectifier will be indicated later.
  • the electronic circuit 1 can regulate the mechanical movement of the workpiece by acting on braking means of the rotor 3a of the generator 3 provided for this purpose.
  • the watch movement will indicate the current time when the rotor turns at a given speed, that we will call normal speed.
  • the timepiece still has means for measuring the speed of movement. They are preferably made up of means for measuring the rotor pulsation.
  • the invention seeks to obtain measurement pulses which correspond well to each rotor pulse, for example one pulse per revolution. These measurement pulses are in fact processed by the electronic circuit 1 in order to measure the drift of the movement and optionally provide a command for braking. These measurement means and the processing of pulses will be detailed with the electronic circuit.
  • Braking is obtained by short-circuiting the coil 3b of generator 3.
  • the electric current then flowing in this derivation indeed causes the appearance of a magnetic field opposing the cause of the current therefore opposing the movement of the rotor.
  • the preferred embodiment of the invention provides an electronic switch K connected directly between the two terminals B0, B1 of the coil 3b of the generator. This gives very powerful braking.
  • the electronic switch K is advantageously consisting of a bipolar or field effect transistor, as explained in document EP-A-0 679 968 mentioned above. Other equivalents being well known to specialists. The operation of this switch electronics K will not be detailed here.
  • Figure 3 already described above, shows by example the appearance of the Ug alternating voltage during a braking cycle, to compare with figure 1 representing Ug voltage in the absence of braking.
  • t0-t6 there is a time interval t4-t5, during which the braking is controlled, the short-circuited generator supplies all its energy to switch K.
  • the document EP-A-0 679 968 indicates that the command for braking must be applied at times when the voltage Ug is close to 0 and for a short time, preferably less than 1/8 of the pulsation of the alternating voltage Ug.
  • the rotor 3a thus has a normal speed of four revolutions per second and the duration of braking pulses applied to switch K is limited to approximately 5 ms, i.e. 1/50 of the 250 ms pulse of Ug voltage.
  • the electronic movement regulation circuit 1 of the timepiece consists mainly of an Oscillator Osc providing a signal having a base frequency FO, of means of measurement, referenced Trig and Inh, of the pulsation rotor 3a and a frequency control circuit, controlling a rotor brake control.
  • the frequency control circuit controls the braking when IN measurement pulses supplied by the measurement means Trig, Inh, and having a frequency corresponding to the rotor pulsation, are ahead by compared to pulses, referenced FR, provided by the oscillator Osc, and having a reference frequency from the base frequency FO of the oscillator Osc, by example by dividing the FO signal in order to obtain a signal having the reference frequency.
  • control circuit includes, preferably a Div frequency corrector which forms the signal having a base frequency FO and delivers pulses at a reference frequency FR.
  • the Div corrector can be simply a divider circuit of frequency, well known to specialists and therefore will not be detailed here.
  • pulses of F1 intermediate frequencies can be extracted from such circuits.
  • the oscillator Osc is a quartz having a natural frequency FO of 32,768 Hz.
  • the Div divider divides the signal having the FO frequency to obtain a series of FR pulses having a reference frequency of 4 Hz corresponding to normal rotor pulsation.
  • F1 pulses with an intermediate frequency of 4,096 Hz can also be extracted from the divider.
  • these values are given only as an example.
  • F1 pulses which here therefore have a period of 0.244 ms, are intended to serve as a time base or delay to the aforementioned brake control and to clock all the logic.
  • the servo circuit further includes a comparator, referenced Cmp, delivering an AV signal indicating the advance (or delay) of the movement with respect to the reference frequency FR.
  • This comparator Cmp can for example be an up-down counter, or reversible counter, totaling the difference of the number of measurement pulses IN, received on its input + " , and of the number of reference pulses FR received on its input" - ", as described in the aforementioned document EP-A-0 679 968.
  • the state or the level of the signal AV available at the output of the comparator Cmp then indicates whether the pulsations of the rotor are ahead or not on the reference frequency FR .
  • the servo circuit finally includes a timer Tmr, or register, delivering pulses fixed term.
  • a first of the two entries of the Tmr timer is connected to the circuit output Inh, and the other input receives the Div Fi pulses used to determine the duration of output pulses.
  • the timer still has a validation terminal receiving the AV signal from the comparator Cmp.
  • the timer Tmr delivers on its exit braking pulses, referenced IF, of fixed duration after the appearance of a measurement pulse IN, if however the AV signal indicates that the rotor pulses are in advances on the FR reference frequency.
  • the braking will have although a duration of less than 5 ms, by programming a Tmr internal timer counter counting twenty F1 pulses having a period of 0.244 ms to generate an IF braking pulse therefore having a duration of 4.88 ms.
  • FIG. 6 represents an example of a timing diagram of the alternating voltage Ug delivered by the generator 3 when braking pulses are applied.
  • the Uth threshold is positive, slightly higher than the reference value 0 of the alternating voltage Ug.
  • the Utb threshold is negative, from preferably symmetrical to the threshold Uth with respect to the voltage 0.
  • the invention in fact provides that the pulse measurement means include a Schmidt hysteresis amplifier or "trigger", referenced Trig in Figure 5.
  • Figure 7 shows a timing diagram of pulses obtained at the output of the Trig amplifier.
  • the IM output of the amplifier goes to a first level (state 0) at from time b2 at which the input voltage Ug becomes below the lower threshold Utb; IM output remains at this first level as long as the Ug tension is not above the upper threshold Uth.
  • the Ug voltage exceeding this threshold Uth, and the output IM changes to a second level (state "1"), thus generating a pulse H3 which reciprocally lasts until time b4 when the voltage Ug drops below the lower threshold Utb.
  • Schmidt rocker also called Schmidt rocker or "Schmidt-trigger
  • Trig trigger to double threshold Uth, Utb does not record the parasites of voltage lower than the difference in thresholds Uth - Utb.
  • Schmidt trigger with positive threshold Uth and negative threshold Utb should not be sensitive to return of the Ug voltage to the value 0 during the periods braking.
  • the electronic circuit 1 has preferably a symmetrical continuous supply V-, V0, V +.
  • a good balanced diet includes a mid-point generator and a rectifier simple with a capacitor between two outputs V + and V-, the reference output V0 being taken at the midpoint.
  • This solution has the disadvantage of halving the amplitude of the measurable alternating voltage Ug, already low amplitude across a 3b coil miniature.
  • the preferred embodiment of the invention comprises a symmetrical rectifier 5 as illustrated in the Figure 5.
  • This rectifier includes in particular an output of Vo reference connected to the B0 reference terminal of the generator 3, and two capacitors arranged respectively between a voltage output V + or V-, and the V0 output.
  • the operation of the rectifier circuit 5 intended to regulate the continuous supply of the circuit electronics 1 will not be described in detail since it can be achieved in various ways well known to specialists.
  • each capacitor is recharged at each alternation substantially at the level of the peak value of the alternating voltage Ug.
  • the value of the rectified voltage V + weakens. This drift from the supply voltage seems to cause drift of Uth and Utb thresholds of the Trig trigger. So we found that, at the next braking pulse F4, the fall in the Ug voltage can reach a value above the threshold Uth thus triggering the appearance of an impulse H5 parasite shown in Figure 7.
  • the phenomenon can also be caused by the existence of a certain tension of waste at the terminals of switch K (see Figure 5). This waste voltage could prevent Ug voltage from return to a strictly zero value.
  • the invention provides means for synchronous inhibition of the measurement pulses.
  • the electronic circuit 1 further comprises an inhibition circuit synchronous Inh receiving IM measurement pulses delivered by the Trig threshold comparator, all thus constituting the means for measuring the pulsation of the rotor 3a.
  • synchronous inhibition will be understood as inhibition triggered by signals, preferably by impulses internal to the system formed by the timepiece, its generator, the circuit electronics and its oscillator.
  • inhibition of measurement pulses may be synchronized with the pulses themselves, a first pulse triggering the inhibition of the appearance of following pulses.
  • this request covers all "synchronous inhibition" without specifying the source of synchronization.
  • the inhibition circuit Inh comprises a time base (internal or external) and, normally, it transmits the measurement pulses IM coming from the amplifier Trig directly to the timer Tmr. However, when the inhibition circuit Inh is activated, the circuit no longer transmits the IM ⁇ pulses during an inhibition period.
  • the inhibition begins when a pulse appears and / or disappears, i.e. the inhibition circuit reacts on the rising and falling edges of the IM pulses, and its duration activation t i is timed by its time base.
  • FIG. 6 and to FIGS. 7, and 8 which respectively represent the different pulses transmitted by the amplifier Trig (FIG. 7) and by the inhibition circuit Inh (FIG.
  • the circuit of inhibition normally transmits the measurement pulses H1, H3 and H7, respectively as pulses M1, M3 and M5, because their transitions at times b2, h3, b4, h7 are separated by time intervals greater than the inhibition time ti. But this inhibition circuit does not transmit the parasitic pulse H5 which appears during the inhibition time ti starting at the falling edge (time b4) of the pulse H3, see Figure 8.
  • the inhibition circuit generates a pulse normal IN of determined duration at each pulse edge IM measurement unless this front appears during a normal pulse IN.
  • Such an inhibition circuit can be performed analogously to the timer Tmr cited above.
  • the Inh circuit includes for example a monostable multivibrator sensitive to transitions of IM measure applied to its input. On the rising front of IM pulse, the monostable thus outputs a normal pulse IN of fixed duration. Similarly, at falling edge of an IM pulse, the monostable delivers another normal pulse IN of fixed duration.
  • a monostable delivers two pulses normal IN at each pulse of the rotor, so that the normal pulse frequency IN should be compared to a double FR reference frequency.
  • other equivalent inhibition circuits well known to specialists can also be used.
  • the muting circuit receives on an input IF pulses, shown in Figure 11, each being a brake control for braking the rotor of the generator, from timer Tmr and inhibition corresponds to the braking time tf, see figure 11.
  • the parasitic impulses of splitting only appear during braking. We thus achieve a synchronous inhibition with the advantage simplicity.
  • the preferred embodiment of the invention however includes a duration II inhibit command superior to the IF brake control, and covering all braking moments.
  • the inhibition pulse II thus covers the moments following the end of the pulse braking IF and the appearance of pulse II precedes possibly the appearance of this IF pulse. This "overflow" guaranteed that propagation delays of inhibition or braking or Ug voltage does not still trigger parasitic pulses.
  • the timer Tmr has two outputs that deliver a pulse inhibition II and a correlated IF braking pulse.
  • correlation refers to the appearance simultaneous, or with a time delay substantially constant of two physical phenomena like signals or impulses. Note however that these two phenomena may have different durations. For example temporarily correlated pulses may have different widths, which is well known to the man of the job.
  • the timer Tmr receives the F1 pulses of period 0.244 ms on a first input connected to the output of the Div divider.
  • a normal IN pulse appears on the other input, which is connected to the output of the means inhibition, and if the state of the AV advance signal control by means of an impulse on the input of validation of the timer (see Figure 5), the Tmr timer immediately delivers a pulse inhibition II.
  • An IF braking pulse appears also at the exit of the timer Tmr with a delay 0.244 ms F1 period at the start of the pulse inhibition II and an internal counter limits its duration to 21 F1 pulses, i.e. 5.124 ms. Indeed, the counter internal must ensure that the braking time is around 5 ms. Another internal counter limits the duration of pulse II at 25 F1 pulses, or 6.1 ms. The inhibition pulse II therefore ends 0.732 ms after the end of the braking pulse IF.
  • the circuit shown is a logic circuit receiving the pulse signals of intermediate frequency F1, the AV signal of advance (or delay) and pulses of aforementioned IM measurement and delivering pulse signals braking IF, inhibition pulses II and of normal pulses IN mentioned above.
  • the logic circuit of FIG. 12 includes a shift register Reg, receiving the F1 pulses in clock input, the register having four outputs R0, R1, R2 and R3, on which appear successively impulse.
  • the F1 pulses have a period of 0.244 ms.
  • the R3 exit thus generates pulses having a period of 0.976 ms, similar but delayed by 0.244 ms compared to R2 output pulses.
  • the Reg register has an activation terminal S which is connected to the exit from an "AND” gate, referenced And, performing the logical AND operation between the advance signal AV and the IM measurement pulse signal.
  • terminal S passes in state "1”
  • the register Reg is activated and the output R1 goes to state "1”.
  • the output R2 goes to state "1", output R1 being reset "0".
  • the output R3 is connected to a counter Cptr which goes to limit the duration of the IF, II and IN pulses.
  • the counter can for example increment until the value five, a holding output Q passing to state "1" after a count of five R3 pulses.
  • the count is initialized and the Q output is reset to "0" if the initialization terminal R is in state "1".
  • the Q output of Cptr counter is connected to the clock input of a Fli flip-flop, of flip-flop type D. This flip-flop comprises another data entry receiving the state "0".
  • a terminal S to set allows to force the state of outputs Q and NQ respectively to states "1" and "0".
  • the S terminal to one is also connected to the door output logic And.
  • This second Flo flip-flop receives on its input from given the output signal Q of the flip-flop Fli. However, the output signal R2 of the shift register Reg is applied to the clock input of the Flo flip-flop. The transfer of the data Q on the output of the flip flop will be delayed until the next transition from signal R2. The two outputs Q of the flip-flops Fli and Flo are also applied to the two inputs of a door And performing the logical AND operation. The exit from the door And finally provides the IF brake pulse signal.
  • the signal transition R2 occurs 0.244 ms after the moment h. So the IF braking pulse appears 0.244 ms after the appearance of the pulse inhibition II.
  • the NQ output of the flip-flop is connected to the initialization terminal R of the counter Cptr.
  • the counter is activated and starts counting pulses R3 from the Reg register.
  • the output Q of the counter Cptr will go to state "1". This transition on entry clock leads the Fli flip-flop to reproduce at Q output the "0" state of the data.
  • the NQ output then goes to the state "1” by initializing the Cptr counter and its Q output. outputs Q of the counter Cptr and the flip-flop remain then in state "0", this situation lasting as long as one transition from state "0" to "1" does not appear on the terminal S of setting of the flip-flop.
  • the counting of the counter Cptr is synchronized with the signal R3 O, 488 ms after time h. Counting lasts 4.88 ms as shown previously. So 5.368 ms after time h, the output Q of the counter Cptr goes to state "1". Immediately outings Q and NQ of flip-flop return to states “0" and "1" respectively. The counter is reset and the rest until a new IM measurement pulse. The signal brake pulse IF thus returns to state "0" at the instant h + 5.368 ms.
  • this transition is produces 0.732 ms after counter reset Cptr, i.e. at time h + 6.1 ms.
  • the impulse inhibition II thus disappears 0.732 ms after the disappearance of the IF braking pulse.
  • Tmr timer circuit signals remain in this state as long as a new IM measurement pulse does not appear.
  • timer circuit Tmr delivers inhibition II and braking pulses Correlated IFs, the duration of an inhibition pulse II covering and exceeding the duration of the braking pulse IF to avoid any error during switching.
  • the circuit of FIG. 12 also illustrates a realization of inhibition circuit Inh.
  • the inhibition circuit Inh is a flip-flop of type D sensitive to the state of the validation input E.
  • the inhibit pulse signal II is applied to this input E, the data input receiving the pulses from IM measurement and the data output delivering the pulses normal IN.
  • the output of normal pulses IN of such a circuit Inh copies the state of the signal IM measurement pulse only if the input of validation E is in state "0".
  • the inhibition signal II is in the state "1" (between time h and time h + 6.1 ms, depending on example), the state of the output is unchanged regardless of signal transitions of IM measurement pulses.
  • the rectifier capacitors 5 can advantageously have relatively low capacities since it is no longer necessary to supply voltages of threshold rigorously stable to the measurement means.
  • durations of IF braking pulses can be modulated according to the importance of the advance of the IM measurement pulses over the FR reference pulses.
  • This variant applies particularly good at a servo circuit comprising a phase locked loop, the circuit providing an AV signal whose level may vary proportional to the phase shift of the IN pulses by compared to IF braking pulses, and the level of AV signal then modulating the pulse duration of IF braking provided by the timer Tmr.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Electromechanical Clocks (AREA)
  • Control Of Eletrric Generators (AREA)

Claims (6)

  1. Zeitmeßvorrichtung, umfassend:
    einen Generator (3) für elektrische Energie, der einen Rotor (3a) und Mittel (3b) zum Liefern der elektrischen Energie als Antwort auf eine Drehung des Rotors (3a) enthält,
    eine Quelle (2) für mechanische Energie, die mit dem Rotor (3a) mechanisch gekoppelt ist, um ihn rotatorisch anzutreiben,
    Meßmittel (Trig), die mit dem Generator (3) gekoppelt sind, um Meßimpulse für die Frequenz einer vom Generator (3) gelieferten Wechselspannung, die der Frequenz des Rotors (3a) entspricht, zu erzeugen,
    Bremsmittel (K), die auf einen Bremsbefehl ansprechen, um an den Rotor (3a) ein Bremsmoment anzulegen, und
    eine elektronische Schaltung (1), die Referenzmittel (Osc) zum Erzeugen eines Signals mit einer Referenzfrequenz (FR) sowie Regelungsmittel (Div, Cmp, Tmr), die so beschaffen sind, daß sie die Bremsmittel (K) steuern, wenn die Meßimpulse in bezug auf das Referenzsignal voreilen, umfaßt, so daß die Referenzfrequenz die Frequenz des Rotors und die mechanische Quelle reguliert,
    wobei die Vorrichtung dadurch gekennzeichnet ist, daß die elektronische Schaltung (1) außerdem Mittel (Inh) zum synchronen Sperren der Meßimpulse (IM) enthält, die so beschaffen sind, daß eine Verdoppelung der Meßimpulse unterdrückt wird.
  2. Zeitmeßvorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß die Sperrmittel (Inh) mit den Bremsmitteln (K) in einer Wechselbeziehung stehen.
  3. Zeitmeßvorrichtung nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß ein Bremsbefehl (IF), der von der Regelungsschleife geliefert wird, auch zum Steuern der Sperrmittel (Inh) verwendet wird, wobei die Schleife eine Verzögerung dieses Befehls steuert.
  4. Zeitmeßvorrichtung nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß die Sperrmittel (Inh) die Übertragung der Meßimpulse (IM) während einer verzögerten Dauer sperren, wobei die Sperrung bei Auftreten oder Verschwinden eines Meßimpulses ausgelöst wird.
  5. Zeitmeßvorrichtung nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß die Meßmittel (Trig) ein Hysterese-Filter wie etwa einen Schmidt-Verstärker umfassen.
  6. Zeitmeßvorrichtung nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, daß der Stromgenerator mit einem Gleichrichter verbunden ist, der eine symmetrische Versorgung schafft.
EP97107371A 1996-05-07 1997-05-05 Stabilisation einer elektronischen Schaltung zur Regelung des mechanischen Gangwerks einer Zeitmessvorrichtung Expired - Lifetime EP0806710B2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9605720A FR2748583B1 (fr) 1996-05-07 1996-05-07 Stabilisation d'un circuit electronique de regulation du mouvement mecanique d'une piece d'horlogerie
FR9605720 1996-05-07

Publications (3)

Publication Number Publication Date
EP0806710A1 EP0806710A1 (de) 1997-11-12
EP0806710B1 true EP0806710B1 (de) 2000-08-16
EP0806710B2 EP0806710B2 (de) 2008-01-23

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EP97107371A Expired - Lifetime EP0806710B2 (de) 1996-05-07 1997-05-05 Stabilisation einer elektronischen Schaltung zur Regelung des mechanischen Gangwerks einer Zeitmessvorrichtung

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US (1) US5740131A (de)
EP (1) EP0806710B2 (de)
JP (1) JP4065345B2 (de)
CN (1) CN1114137C (de)
DE (1) DE69702811T3 (de)
FR (1) FR2748583B1 (de)
HK (1) HK1005106A1 (de)
SG (1) SG63704A1 (de)
TW (1) TW330252B (de)

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DE59601785D1 (de) * 1995-09-07 1999-06-02 Konrad Schafroth Uhrwerk
US6169709B1 (en) 1995-09-07 2001-01-02 Konrad Schafroth Watch movement
CH690523A5 (fr) * 1996-12-09 2000-09-29 Asulab Sa Pièce d'horlogerie comportant une génératrice d'énergie électrique.
CN1132071C (zh) * 1997-09-26 2003-12-24 精工爱普生株式会社 电子控制式机械钟表
WO1999017172A1 (fr) * 1997-09-30 1999-04-08 Seiko Epson Corporation Horloge mecanique a commande electronique et son procede de commande
JP3006593B2 (ja) * 1997-09-30 2000-02-07 セイコーエプソン株式会社 電子制御式機械時計およびその制御方法
CN1140854C (zh) * 1997-09-30 2004-03-03 精工爱普生株式会社 电子控制式机械钟表及其控制方法
US6795378B2 (en) 1997-09-30 2004-09-21 Seiko Epson Corporation Electronic device, electronically controlled mechanical timepiece, and control method therefor
JP3627245B2 (ja) 1997-09-30 2005-03-09 セイコーエプソン株式会社 回転制御装置および回転制御方法
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HK1005106A1 (en) 1998-12-24
TW330252B (en) 1998-04-21
SG63704A1 (en) 1999-03-30
JP4065345B2 (ja) 2008-03-26
US5740131A (en) 1998-04-14
DE69702811D1 (de) 2000-09-21
FR2748583B1 (fr) 1998-06-26
JPH1048355A (ja) 1998-02-20
EP0806710A1 (de) 1997-11-12
DE69702811T2 (de) 2001-03-22
FR2748583A1 (fr) 1997-11-14
CN1165989A (zh) 1997-11-26
CN1114137C (zh) 2003-07-09
DE69702811T3 (de) 2008-08-14
EP0806710B2 (de) 2008-01-23

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