Abstract: A discharge lamp lighting device driven by an internal combustion engine is disclosed which is capable of lighting a discharge lamp without using a ballast constituted by a leakage transformer. The device includes a generator which is driven by the internal combustion engine and of which output characteristics exhibit drooping characteristics, so that an output voltage of the generator may be applied to a discharge lamp without using any ballast. Output characteristics of the generator are so set that an output voltage of the generator at a non-load state thereof may be higher than a break-down voltage of the discharge lamp, a short-circuit current of the generator may have a level sufficient to restrict a discharge current of the discharge lamp just after starting of discharge thereof to an allowable level or below, and a voltage across the discharge lamp and a discharge current thereof at a steady state thereof each are kept within a rated range.

Abstract: A first conductive plate is formed integrally of a single conductive sheet comprising a plurality of brushes and power supply terminals that are partially short-circuited, and a second conductive plate is formed integrally of a single conductive sheet comprising connector pins for connection for other components that are partially short-circuited.

Abstract: An angle detecting device including a magnetism gap where a magnetic-flux shutter rotates synchronously with a detection subject, a magnetic flux generator provided at one side of the gap, a magnetic-flux detector provided at the other side of the gap, an outlet of the signals from the detector, a frame integrally including the above-described generator, detector and outlet, and anchoring portions mechanically fixing the detector in a housing portion of the frame. In one embodiment, the anchoring portions are a pair of saw-toothed tabs formed by cutting and bending out a section of the plate. The saw-toothed tabs cut into the inner wall of the housing when the detector is inserted. In another embodiment, the anchoring portions are a pair of supporting tabs formed by bending extensions of the plate. The supporting tabs are clamped between a lower surface of the housing and a cover.

Abstract: An alternator assembly for an internal combustion engine includes a regulator whose individual circuit components are mounted directly on the stator of the alternator assembly. The regulator may be in the form of discrete components or integrated circuit chips. The components of the regulator circuit may be mounted to the stator by fasteners or by an adhesive resin such as epoxy.

Abstract: An assembling structure of a Hall-effect sensor device suitable to be used as a crankshaft angle sensor of an automotive internal combustion engine is disclosed.

Abstract: An asymmetric excitation type magnetic device is provided with a composite magnetic body composed of a first magnetic layer having a relatively strong coercive force and a second magnetic layer having a relatively weak coercive force which layers are combined so as to have their respective magnetic anisotropy oriented in the same direction. To such a composite magnetic body are applied external positive and negative asymmetric magnetic fields in a specified order thereby to produce variations in magnetic flux due to an escpecially quick magnetization reversal and resultantly to generate steep pulse outputs across a detecting coil.

Abstract: An alternator or generator core attachment is provided for connecting to a ferromagnetic coil of a magneto used in the ignition system of small combustion engines. The attachment includes a radially extending leg portion, on which a generator coil is wound, a cross bar portion and a flange adapted to be attached to one of the poles of the magneto core. By this construction, the pole of the magneto to which the flange is attached is integrated into a magnetic flux path with the radially extending leg and cross bar portion of the attachment.

Abstract: A stationary spark ignition internal combustion engine which normally operates unattended continuously for long periods of time is modified to eliminate problems in electrical systems. The battery and voltage regulator of the engine is removed and the electrical generator replaced by a magnetic generator which produces low power levels which are sufficient only to operate the spark ignition system. A plastic bushing and "O" rings are used to mount a disc magnet to the magnetic generator shaft.

Abstract: A signal generator is located substantially in a center position within an iron cup opposingly to the fore end of a crankshaft, and a timing portion is provided on the inner periphery of the iron cup in a position opposing the signal generator, permitting to dispose the signal generator within the iron cup of a small diameter by effective use of the entire space of the iron cup without obstacled by the crankshaft.

Abstract: A voltage generating ignition distributor for an internal combustion engine that has a pickup coil and a magnetic rotor. In order to prevent high frequency voltages, developed at the gap between the rotor contact and the outer electrodes of the distributor cap, from distorting the voltage generated in the pickup coil the outer turns of the pickup coil are grounded through a capacitance. The outer turns of the pickup coil thus form a grounded shield for the inner turns of the pickup coil at the high frequency of the voltage at the rotor gap discharge.

Abstract: A magneto device for generating signals comprises a rotor including a permanent magnet and a pole piece which are secured to a rotary body, and a stator including a stationary pole piece and a signal output coil. Formed in the outer periphery of the rotary body is a recess in which the permanent magnet and the pole piece are inserted in this order. A cylindrical key member made of a non-magnetic metal is inserted in an annular space between the wall of the recess and the permanent magnet and pole piece. The key member is plastically deformed by pressing to secure the permanent magnet and pole piece to the rotary body.

Abstract: An output supply control apparatus controls the supply of an output from an internal combustion engine magneto generator to its loads so as to effectively utilize the magneto generator. The desired ignition energy is obtained by charging a discharge capacitor of a contactless ignition system with a high induced voltage produced upon the rapid interruption of the short-circuit current in the generating coil, and also any other load such as a battery or lamp is energized by the high induced voltage exceeding a predetermined value. A constant voltage supply for the contactless ignition system ignition signal generating circuit is operated by the generating coil output current preceding the interruption. A regulator is included which monitors a lamp load voltage to commutate or transfer an excess output to the battery load and is operable in response to an overvoltage.

Abstract: An ignition magneto having an improved primary wiring assembly that consists of a plastic bobbin having a generally rectangular configuration and composed of a pair of end flanges connected together by a pair of side walls and a pair of end walls. The side edges of each wall are spaced from the side edges of adjacent walls, to provide a gap or slot at each corner of the bobbin. A wire is wound in a plurality of turns around the walls and extends across the slots. One end flange is provided with grooves within which the free ends of the wire are gripped. The primary winding assembly is positioned in a cup-shaped casing around a central upstanding chimney which extends upwardly from the bottom of the casing. After installing a transistor and trigger coil, as well as a secondary winding around the primary winding assembly, the components are potted in the casing with a thermosetting resin.

Abstract: An ignition distributor for an internal combustion engine including a magnetic pick-up for generating a timing control voltage. The distributor has a rotor comprised of a plurality of radially extending circumferentially spaced permanent magnets that define rotor pole teeth. The permanent magnets are radially magnetized such that the outer tips all have the same magnetic polarity. As the rotor rotates, a voltage is induced in the pick-up coil by flux linking the coil that is provided by the permanent magnets. A combined electrostatic shield and flux shunt is provided that takes the form of a metallic plate of magnetic material that is located between one end of the pick-up coil and one end of the rotor.

Abstract: To eliminate frictional effects by stationary elements (17, 37, 47) with respect to a sleeve (16, 36, 46) which rotates with a shaft (11) of a distributor, but is adjustable with respect to the instantaneous position about the shaft by a centrifugal spark advance mechanism (15), the nonrotatable elements (17, 37, 47) are secured from a support plate (22, 32, 49) which is positioned intermediate the sleeve and the distributor rotor, the support plate being journalled by bearings (23, 33, 44, 45) directly on the shaft. A load-dependent vacuum chamber can be linked directly to the support plate for additional load-dependent spark timing adjustment.

Abstract: In order to increase the power output of a magneto generator without causing additional undesired sparks to be generated in the ignition system, a plurality of permanent magnets each having associated pole pieces is arranged around the periphery of a magnet wheel. The ignition armature and at least one additional armature are fixedly mounted so that, during rotation of the wheel, the pole pieces interact with the legs of an E-shaped core in each of the armatures. However, the polarity of the permanent magnets is such that only the first of these magnets causes the generation of a spark in the ignition system. The polarity of the additional permanent magnets is such that no spark is induced when they pass by the ignition armature during rotation of the wheel. Since all three magnets, regardless of the polarity, are active in inducing AC voltages in the auxiliary armature windings, the power output of the latter is increased.

Abstract: A bracket for mounting a transistor device and trigger coil of a breakerless ignition system between the induction coil and one of the leg portions of an A-shaped armature core. The bracket includes a hollow housing for receiving the transistor and trigger coil which are secured therein by means of an epoxy potting material. A pair of spaced guide surfaces integrally formed in the housing provide a guideway for slidably receiving the armature leg. A resilient arm member projects from the housing and includes a hooked portion which snaps into a locked position when the bracket is slid onto the armature leg to hold the bracket in place. A pair of resilient, spaced apart wing members also project from the housing to engage the induction coil to prevent vibration of the bracket between the induction coil and armature, and a third resilient wing member projects from one of the guide surfaces to engage the armature leg and prevent vibration of the bracket between the guide surfaces.

Abstract: A magneto-generator for engine ignition has a cup-shaped pole-wheel with a multiplicity of magnet poles (13) within which is a stationary star-shaped armature having generator windings (20) on the outwardly extending pole legs. A pulse generator (24) is built in with its winding around a core (25) having one end affixed to the armature core (17) between two pole legs (18) and its other end terminating in a pole head (27) that cooperates with a projection (28) of the revolving pole-wheel to enable a control pulse to be generated by a flux derived from the same magnets that serve the generator windings.

Abstract: A magneto generator includes a magnet wheel 11 which carries a magnetic system. The magnetic system consists of a plurality of claw shaped pole pieces (12,13) which form extensions of two pole plates (14,15). A plate shaped permanent magnet 16 is positioned between the pole plates in a direction perpendicular to the pole wheel axis. The pole pieces arranged along the periphery of the magnet wheel are extensions of two pole plates each of which abuts one of the pole faces of the plate shaped permanent magnet. At least one of the pole plates has an extension which compensates for the unbalance of weight caused by the pole piece extensions.

Abstract: An ignition system for a small internal combustion engine is disclosed, including a magnetic trigger rotor (33) having two magnets (45) disposed in arcuate slots (43), with a radial slot (41) disposed between the arcuate slots (43) for causing an abrupt flux reversal in a pickup coil (35) to generate an initial ignition timing signal, and two or more holes (47), (49) adjacent the radial slot and made in the direction of the axis of rotation of the rotor, for causing flux distortions which becomes significant at higher rotational speeds, to give a step-type ignition advance.

Abstract: To simplify a Wiegand wire type pulse source, a Wiegand wire (4) has a coil (3) wound thereon. A permanent magnet (5) is positioned with a gap from the coil, and a magnetically permeable masking element, for example a sector-shaped disk, is movable between the magnet and the coil. The coil (3) is connected to a source of direct current (B) which so magnetizes the Wiegand wire (4) that, when a gap of the masking element occurs between the magnet (5) and the coil (3), the Wiegand wire is reversely magnetized until, again, a solid portion of the masking element is interposed in the gap between magnet (5) and coil (3) to restore the magnetic direction due to the battery (B). Re-magnetization pulses are picked off the coil (3) by a suitable pulse coupling element such as a capacitor (C).

Abstract: A mechanical structure for an ignition controller (20) for an electronic ignition system, including structure for a sensing coil carrier, a trigger rotor, and a mechanical advance mechanism is disclosed. The sensing coil carrier (28) is pivotably mounted to a shaft (22) of the ignition controller (20), and holds a sensing coil (30) a fixed radial distance from the shaft. A trigger rotor (26) having a generally circular configuration with two circumferential walls (90, 92) forming a groove, with a metallic channel member (96) embedded in the groove, is fixed to the shaft (22), so that the sensing coil carrier (28) and the trigger rotor (26) are both referenced to the same axis. The mechanical advance mechanism (24) uses identical springs (60) for primary advance, and a self centering spring (66) for secondary advance, thereby eliminating unbalanced loading that results in hysteresis in ignition advance.

Abstract: To provide an inherent delayed effect of spark trigger pulses derived from a magnetic transducer in which a salient pole piece of a rotor rotates with respect to a salient pole piece of a stator and, upon juxtaposition, a pulse is induced in a pickup coil magnetically coupled to the rotor-stator circuit, the rotor pole piece is formed to have an arcuate length greater than that of the stator pole piece, with stepped configuration so that, with respect to angle of rotation, the output voltage derived from the coil will have, after passing through zero or null, a half wave which has a portion (C) of decreasing rate of change of absolute value, or differential thereof, and a subsequent and adjacent portion (D) of increasing rate or differential of absolute value with respect to angular change with the sign of the differential remains the same, so that, on slow-speed operation, a trigger circuit set to respond only to the subsequent or adjacent portion will have a voltage induced therein only at a later time, tha

Abstract: A distributor for a contactless ignition apparatus of an internal combustion engine is disclosed. An ignition control circuit unit of contactless type is comprised of a case containing the ignition control IC circuit and a mold resin of the pick-up coil integrally formed with the case. The distributor contains closed magnetic circuit-forming means comprising a distributor shaft rotatable in synchronism with the engine, a reluctor or rotor fixed on the shaft and having claws in the number corresponding to the number of engine cylinders, a stator having a pair of claws opposed to the claws of the reluctor and mounted on the movable base of the angle advancer for advancing the ignition timing in response to a negative vacuum pressure, and a permanent magnet for generating a closed magnetic circuit through the reluctor stator and shaft. The pick-up coil of the ignition control circuit unit is arranged to cross the closed magnetic circuit, which unit is fixed within the distributor.

Abstract: A joining construction between a flywheel of a flywheel magneto and a boss for mounting thereon a shaft comprises a joining portion formed on the periphery of the boss, and a joining portion of the flywheel surrounding the periphery of the boss. The joining portion of boss has an annular groove defined by a rugged bottom and both sides one of which is inclined along metal flow. The joining portion of the flywheel has the same shaped groove as one of the boss. Two the joining portions define an annular gap in which a joining member is disposed deformed by pressworking. The joining member inserted into the annular gap has the same shearing strength as the flywheel when an axial force is applied to the flywheel magneto.

Abstract: In the disclosed ignition apparatus for internal combustion engines provided with flywheel magnetos, the ignition spark interval is purely mechanically provided at the manufacturing stage. In the direction of rotation, the edges of both pole shoes and core legs which meet each other are sharply defined. The pole shoe, first in the direction of rotation, is formed so that it substantially coacts with the leg, second in the direction of rotation, when the leading edge of the second pole shoe comes into coaction with the front edge of the leg situated first.

Abstract: A non-contact signal generator which is adapted for the conduction signal source for the semi-conductor ignition system of so-called current-breaking type or induced-energy accumulating type and which is of the permanent-magnet-energization, variable magnetic reluctance type with one or more than two stationary pole number for generating one conduction signal for each pole in each rotation is disclosed.

Abstract: Disclosed herein is a rotary pulse generator including an armature having a two-magnet assembly including spaced pole pieces defining a pair of spaced gaps, an armature plate including a charge core and charge coil mounted thereon, and a trigger core and trigger coil mounted thereon, said trigger core being separate from said charge core but located in proximity to said charge core so that, at a given armature speed, said trigger coil produces a repeating series of trigger pulses including a first major voltage pulse of one polarity and of a major magnitude closely followed by a second minor voltage pulse of opposite polarity and of a minor magnitude substantially less than the major magnitude, the repeating series of trigger pulses being produced in response to the two-magnet assembly sequentially rotating past the trigger core and the charge core.

Abstract: An annular magnet assembly for a dynamoelectric machine includes a plurality of arcuate permanent magnets disposed in an annular array and a frame member of a non-magnetic material for rigidly connecting the magnets together. The magnets are disposed in end-to-end abutment to form the annular array, both ends of each magnet being cut to form a recess in the inner or outer peripheral surface of the annular array at the respective abutments of the magnets. The frame member comprises a pair of annular portions which tightly engage the opposite sides of the annular array and ledge portions extending through the recesses to connect the pair of annular portions together.

Abstract: An inductive pulse generator for producing control pulses for ignition timing is built into a conventional distributor designed for a mechanical circuit interruptor. The stator is mounted on a plate fastened to the interruptor carrier plate and consists of a pair of opposed coils on a common axis passing through the axis of the distributor shaft and a pair of opposed permanent magnets similarly mounted. The rotor has teeth of soft magnetic material in diametrically opposite pairs on rotor diameters forming equal angles between successive diameters. The rotor teeth pass by the coils and magnets with a small clearance and the symmetrical disposition of the coils and magnets provides immunity from much of the effect of vibrational forces which would otherwise disturb the constancy of the air gap width and consequently the regularity of the control pulses produced.

Abstract: An engine driven rotor has pairs of arms of different lengths passing by the stator core teeth with respectively different clearances. The stator teeth carry pick-up coils that are connected in series-aiding relation. Although the stator teeth are uniformly spaced, the rotor arms, that are equal in number to the stator teeth, have the longer pair angularly offset from equiangular relation to the shorter pair in such a way that when the rotor moves in its normal direction, a weak pulse is followed by a stronger one and this pattern is repeated four times per revolution. The output of the coils is supplied to a threshold switch, which will be triggered on the second of the pair of pulses at low rotation speeds of the rotor and on the first of the pair of pulses at high speeds.

Abstract: An automotive type ignition distributor featuring a Hall Effect pickup and associated electronic circuitry and a combined distributor rotor and interrupter unit, which distributes the high tension energy to the spark plugs of the engine, acts as an interrupter for the Hall Effect Pickup and provides a return circuit path to ground for electrostatic charges developed within the distributor to protect the semiconductor components within the distributor from damage due to arc flashover.

Abstract: A device for automatically advancing the ignition timing in an ignition system for an internal combustion engine is disclosed, in which the ignition timing is fixed constant in a low speed range of the rotation of the engine, advanced in an intermediate speed range lower than a predetermined rotary speed, and fixed constant again in a high speed range higher than the predetermined rotary speed. In this automatic ignition timing advancing device, a positive pulse signal generated at a first phase corresponding to the ignition timing in the low speed range, a negative pulse signal generated at a second phase corresponding to the ignition timing in the high speed range, and a positive voltage signal having an amplitude increasing with time in the phase range including the first phase and second phase are combined to provide a composite signal used as a control signal for controlling the ignition timing.

Abstract: In an ignition distributor of the type having an ignition coil mounted in the distributor cap and a magnetic signal generating assembly including a pickup coil, a pickup coil magnetic decoupling arrangement comprising an annular ring member of an electrically conductive material located in a position at which it is magnetically linked by those lines of magnetic flux produced by the ignition coil which also magnetically link the pickup coil.

Abstract: An electronic ignition system for internal-combustion engines is disclosed, the system having a magnetic pulse unit using a sensor that produces a voltage trigger pulse in response to the rotation of a distributor shaft past a pole of a permanent magnet, the improvement comprising a flat-leaf spring having a plurality of relatively sharp corners mounted over a portion of the shaft so that the corners of the spring pass in close proximity to and disturb the magnetic field around the permanent magnet as the shaft rotates.

Abstract: Four pole pieces embedded in the cylindrical periphery of a non-magnetic rotor disk are connected with each of a number of magnets embedded in the disk in circumferentially distributed positions spaced from the rotor shaft and from the disk periphery. Of these pole pieces, one circumferentially interleaved pair is connected with one pole of the magnet by a magnetically conducting yoke strip embedded in one circular face of the disk and the other pair is similarly connected with the other pole of the magnet. The spacing between the first and second pole piece is equal to the spacing between the third and fourth and less than that between the second and third, the latter spacing being equal to the spacing between groups of pole pieces associated with different magnets, for the case of a uniformly timed firing sequence of a multicylinder engine.

Abstract: Magnetic pulse type ignition distributor in which the magnetic pulses are oduced by a pole-carrying timer core rotating in the magnetic gap between two stationary poles of a magnetic circuit. The timer core is enclosed in a sealed casing made principally of a non-magnetic metal. The stationary poles enter this casing through openings partially defined by a non-conductive material to avoid heating due to eddy currents. Means are provided for minimizing the friction produced by rotation of the timer core, and for facilitating the mounting of the casing and the remainder of the distributor in a position in which the timing is sufficiently well adjusted to permit operation of the motor.

Abstract: A permanent magnet field means for use in a dynamoelectric machine comprises a magnet ring received in a supporting ring of ferromagnetic material. The magnet ring includes a circular array of arcuate magnets and a carrier of non-magnetic material in which the magnets are fixedly embedded. The magnet ring has a single axially extending gap located between the adjacent ends of two neighboring magnets. A spreading element placed in the gap spreads the magnet ring into tight engagement with the supporting ring. In some cases, this expansion of the magnet ring is used by itself to hold the magnet ring to the supporting ring in the finished device. In other cases, an adhesive is used between the supporting ring and the magnet ring and the expansion of the magnet ring is used to hold the magnet ring tightly to the supporting ring until the adhesive sets, the adhesive thereafter being the principal agent fixing the magnet ring to the supporting ring.

Abstract: A signal generating mechanism for producing a pulsed DC electrical voltage signal having a frequency proportional to the angular velocity of a rotating shaft. The signal generating mechanism may be used in the distributor of a breakerless ignition system for a multi-cylinder internal combustion engine, in which case the frequency of the pulsating voltage signal is equal to the rate at which ignition sparks are to be generated. The signal generating mechanism includes a baseplate and a bushing through which the rotating shaft passes. A stator assembly is formed by a hub and lower and upper plates affixed thereto, the stator assembly being rotatable about the bushing and further including at least one Hall effect sensor and integrated circuit mounted in a nonmagnetic supporting structure secured to the upper plate. A permanent magnet also is attached to the supporting structure and is radially spaced from the Hall effect sensor and integrated circuit.

Abstract: There is disclosed pulse wheel means for fitting onto multi-lobe, breaker cams of automotive distributors to convert the distributors to a pointless or breakerless ignition system. The outer surface of such wheel means carries a plurality of upstanding, axial ribs which are equally spaced about the periphery of the wheel and which correspond in number to the number of lobes of the breaker cam, thereby forming a magnetic flux or magnetic pulse wheel for use with a magnetic field and voltage pulse generator useful in an ignition system for a multi-cylinder internal combustion engine. The wheel is formed of a metal having a high magnetic permeability, preferably by powdered metal technology wherein iron powders are molded and sintered into a cylindrical body having an axial through opening with a polygon cross-section and interior side walls generally conforming to the exterior surface of the cam.

Abstract: A signal source for use in a breakerless ignition system for an internal combustion engine provided outside a bowl-like flywheel of a flywheel type magneto generator, but cooperating with at least one of a plurality of permanent magnets in said magneto generator. The signal generator comprises timing pole means with one end thereof connected to a pole piece of the permanent magnet and with the other end radially extending through and exposed exterior of the cylindrical wall of the bowl-like flywheel in a spaced relationship from the magnet and signal coil means disposed closely adjacent to and outside of said bowl-like flywheel so that said coil means is interlinked with magnetic flux through said timing pole means.

Abstract: A distributor for use with an electronic breakerless ignition system. The distributor has a triggering rotor and a triggering sensor which are connected by a bearing to form a single assembly so that the radial spacing between the rotor and sensor remains constant regardless of any variation in the axis of rotation of the rotor.

Abstract: To supply electrical power to small motor vehicles such as motorcycles, motor scooters, snow-mobiles and the like, which do not have a battery, to energize separate loads such as headlights and tail-lights, a permanent magnet field generator having a plurality of armature windings has loads, for example the main headlight connected, in series with a control switch, across all the armature power supply windings; one of those power supply windings has, additionally, the tail-light connected in series therewith, and in advance of the switch connection, so that upon burn-out of the main load (for example the headlight) no excess voltage peaks will develop which also destroy the other load, for example the tail-light.

Abstract: For an internal combustion engine, there is provided an electrical power generator system and an electronic ignition system both disposed under the flywheel casing. Permanent magnet means provide a rotating magnetic field for the generating coils of the generator system and the charging coils of the ignition system, there being a separate trigger magnet for creating a magnetic field for a trigger coil of the ignition system. A shielding plate of ferromagnetic material is fixedly disposed between the permanent magnet means and the trigger magnet to shield the trigger coil magnetically from the field of the permanent magnet means whereby it will respond only to the field from the weaker trigger magnet. Preferably, the shielding plate can be angularly adjusted and supports the trigger coil to enable adjustment of timing.

Abstract: A signal generator for use in a breakerless ignition system for an internal combustion engine, comprising a magnet rotor rotatable in synchronism with said internal combustion engine and a stator including a plurality of signal coils and a comb-like magnetic core member disposed adjacent to said rotor and having a plurality of teeth-like core portions around which said signal coils are wound, respectively, and a common yoke magnetically connected to said core portions, said signal coils constructed so that incremental voltages are established thereacross from the most advanced position toward the most retarded position and said signal coils divided into at least two series connections of at least alternate signal coils. Each series connection of signal coils has a diode connected in series to the corresponding series connection and the series connections of signal coils are arranged in a parallel manner.

Abstract: A flywheel alternator for use with an electronic ignition system of an internal combustion engine. The flywheel has a rotor with an odd number of circumferentially located permanent magnets each of substantially the same size and shape. The radially inward pole faces of adjoining pairs of the magnets are of opposite polarity except for one pair which is of the same polarity. At least one stationary trigger coil is positioned to form magnetic circuits with the rotor magnets by bridging alternate ones of the magnets as the rotor rotates. A unique trigger pulse suitable for activating an electronic ignition system is generated only once each flywheel revolution. A stationary power coil has a length to bridge consecutive ones of the magnets to provide power to run other electrical appliances.