JPWO2017209092A1 - Electromagnetic oscillation device including a booster circuit - Google Patents

Electromagnetic oscillation device including a booster circuit Download PDF

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JPWO2017209092A1
JPWO2017209092A1 JP2018520908A JP2018520908A JPWO2017209092A1 JP WO2017209092 A1 JPWO2017209092 A1 JP WO2017209092A1 JP 2018520908 A JP2018520908 A JP 2018520908A JP 2018520908 A JP2018520908 A JP 2018520908A JP WO2017209092 A1 JPWO2017209092 A1 JP WO2017209092A1
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electromagnetic wave
amplifier
booster circuit
wave oscillator
oscillation
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JP6884938B2 (en
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裕二 池田
誠士 神原
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Imagineering Inc
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02P—IGNITION, OTHER THAN COMPRESSION IGNITION, FOR INTERNAL-COMBUSTION ENGINES; TESTING OF IGNITION TIMING IN COMPRESSION-IGNITION ENGINES
    • F02P3/00—Other installations
    • F02P3/01—Electric spark ignition installations without subsequent energy storage, i.e. energy supplied by an electrical oscillator
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M3/00—Conversion of dc power input into dc power output
    • H02M3/02—Conversion of dc power input into dc power output without intermediate conversion into ac
    • H02M3/04—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters
    • H02M3/10—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
    • H02M3/145—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal
    • H02M3/155—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02P—IGNITION, OTHER THAN COMPRESSION IGNITION, FOR INTERNAL-COMBUSTION ENGINES; TESTING OF IGNITION TIMING IN COMPRESSION-IGNITION ENGINES
    • F02P15/00—Electric spark ignition having characteristics not provided for in, or of interest apart from, groups F02P1/00 - F02P13/00 and combined with layout of ignition circuits
    • F02P15/08—Electric spark ignition having characteristics not provided for in, or of interest apart from, groups F02P1/00 - F02P13/00 and combined with layout of ignition circuits having multiple-spark ignition, i.e. ignition occurring simultaneously at different places in one engine cylinder or in two or more separate engine cylinders
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02P—IGNITION, OTHER THAN COMPRESSION IGNITION, FOR INTERNAL-COMBUSTION ENGINES; TESTING OF IGNITION TIMING IN COMPRESSION-IGNITION ENGINES
    • F02P23/00—Other ignition
    • F02P23/04—Other physical ignition means, e.g. using laser rays
    • F02P23/045—Other physical ignition means, e.g. using laser rays using electromagnetic microwaves

Abstract

【課題】電磁波発振器から発振する電磁波がＯＦＦ状態の時は増幅器に電圧を印加することのない昇圧回路を含む電磁波発振装置を提供すること。【解決手段】複数の昇圧チョッパ２ａ、２ｂ、２ｃ、２ｄを備えた昇圧回路２０と、昇圧チョッパ２のスイッチング素子Ｓを制御する制御装置５と、所定電圧の供給を受ける電磁波発振器３と、この電磁波発振器３からの電磁波を増幅する増幅器４とを備え、昇圧チョッパ２は、制御装置４によって、電磁波発振器３の発振タイミングに合わせて、複数の昇圧チョッパ２ａ、２ｂ、２ｃ、２ｄから順次電流を増幅器４に非平滑で出力するようにしている。【選択図】図１An electromagnetic wave oscillation device including a booster circuit that does not apply a voltage to an amplifier when an electromagnetic wave oscillated from an electromagnetic wave oscillator is in an OFF state. A step-up circuit 20 having a plurality of step-up choppers 2a, 2b, 2c, and 2d, a control device 5 that controls a switching element S of the step-up chopper 2, an electromagnetic wave oscillator 3 that receives a predetermined voltage, and The boost chopper 2 includes an amplifier 4 that amplifies the electromagnetic wave from the electromagnetic wave oscillator 3. A non-smooth output is made to the amplifier 4. [Selection] Figure 1

Description

本発明は、点火装置や電磁波照射アンテナに電磁波を供給する電磁波発振装置に関する。   The present invention relates to an electromagnetic wave oscillation device that supplies an electromagnetic wave to an ignition device or an electromagnetic wave irradiation antenna.

本発明者等は、内燃機関の着火のための点火装置として、電磁波を利用する点火装置を提案している。例えば電磁波のみを使って、プラズマの発生、拡大及び維持を効率よく行うことができる小型の内燃機関の点火装置として使用することができるプラズマ生成装置として、電磁波を発振する電磁波発振器と、電磁波発振器を制御する制御装置と、電磁波発振器と容量結合した共振回路を含む昇圧回路及び昇圧回路により発生した高電圧を放電させる放電電極を一体的に形成する点火装置を提案している（例えば、特許文献１参照。）。また、一般的な点火プラグのプラズマにマイクロ波を照射してプラズマを維持拡大するプラズマ生成装置も提案している。   The present inventors have proposed an ignition device using electromagnetic waves as an ignition device for ignition of an internal combustion engine. For example, as a plasma generator that can be used as an ignition device for a small internal combustion engine that can efficiently generate, expand, and maintain plasma using only electromagnetic waves, an electromagnetic wave oscillator that oscillates electromagnetic waves and an electromagnetic wave oscillator There has been proposed an ignition device that integrally forms a control device to be controlled, a booster circuit including a resonance circuit capacitively coupled to an electromagnetic wave oscillator, and a discharge electrode that discharges a high voltage generated by the booster circuit (for example, Patent Document 1). reference.). In addition, a plasma generating apparatus that maintains and expands plasma by irradiating the plasma of a general spark plug with microwaves has also been proposed.

国際公開２０１４／１１５７０７号International Publication No. 2014/115707

ところで、特許文献１に記載の点火装置に供給する電磁波は、電磁波発振器からパルスで発振されている。電磁波発振器から発振される電磁波は数Ｗの電磁波で、この電磁波を増幅器で増幅し、点火装置や電磁波照射アンテナに供給している。具体的には、電源（内燃機関では、例えばバッテリ）からの直流電源（１２Ｖ又は２４Ｖ）を昇圧回路（例えば、ＤＣ／ＤＣコンバータ）によって連続的な３２Ｖとして、電磁波発振器と増幅器に供給する、そして、電磁波発振器が制御装置から電磁波発振信号（例えばＴＴＬ信号）を受けると、所定のデューティー比、パルス時間等を設定したパターンで電磁波を発振し、常時３２Ｖの高電圧が印加されている増幅器によって所定電力（例えば１ｋＷ）に増幅し点火装置や電磁波照射アンテナに供給する。   Incidentally, the electromagnetic wave supplied to the ignition device described in Patent Document 1 is oscillated in pulses from an electromagnetic wave oscillator. The electromagnetic wave oscillated from the electromagnetic wave oscillator is an electromagnetic wave of several W, and this electromagnetic wave is amplified by an amplifier and supplied to an ignition device or an electromagnetic wave irradiation antenna. Specifically, a DC power source (12V or 24V) from a power source (for example, a battery in an internal combustion engine) is supplied to an electromagnetic wave oscillator and an amplifier as continuous 32V by a booster circuit (for example, a DC / DC converter), and When the electromagnetic wave oscillator receives an electromagnetic wave oscillation signal (for example, TTL signal) from the control device, the electromagnetic wave is oscillated with a pattern in which a predetermined duty ratio, a pulse time, etc. are set, and is predetermined by an amplifier to which a high voltage of 32V is constantly applied. It is amplified to electric power (for example, 1 kW) and supplied to an ignition device or an electromagnetic wave irradiation antenna.

しかし、電磁波発振器から発振する電磁波はパルス発振のため、増幅器に対して、常時３２Ｖの高電圧を印加する必要はなく、増幅器など各デバイスに対する保護が十分になされない。これは一般的な昇圧回路の仕様上の問題である。   However, since the electromagnetic wave oscillated from the electromagnetic wave oscillator is pulse oscillation, it is not necessary to always apply a high voltage of 32V to the amplifier, and the devices such as the amplifier are not sufficiently protected. This is a problem in general booster circuit specifications.

本発明は、かかる点に鑑みてなされたものであり、その目的は、電磁波発振器から発振する電磁波がＯＦＦ状態の時は増幅器に電圧を印加することのなく、デバイスの保護を可能とした、昇圧回路を含む電磁波発振装置を提供することである。   The present invention has been made in view of the above points, and an object of the present invention is to provide a booster that can protect a device without applying a voltage to an amplifier when an electromagnetic wave oscillated from an electromagnetic wave oscillator is in an OFF state. An electromagnetic wave oscillation device including a circuit is provided.

上記課題を解決するためになされた発明は、昇圧回路を含む電磁波発振装置は、
複数の昇圧チョッパを備えた昇圧回路と、
前記昇圧チョッパのスイッチング素子を制御する制御装置と、
所定電圧の供給を受ける電磁波発振器と、
該電磁波発振器からの電磁波を増幅する増幅器とを備え、
前記昇圧チョッパは、制御装置によって、電磁波発振器の発振タイミングに合わせて、複数の昇圧チョッパから順次電流を増幅器に非平滑で出力するようにしている。The invention made in order to solve the above-mentioned problems is an electromagnetic wave oscillation device including a booster circuit,
A step-up circuit having a plurality of step-up choppers;
A control device for controlling the switching element of the step-up chopper;
An electromagnetic wave oscillator receiving a predetermined voltage;
An amplifier for amplifying the electromagnetic wave from the electromagnetic wave oscillator,
The boost chopper is configured to output non-smooth currents sequentially from the plurality of boost choppers to the amplifier in accordance with the oscillation timing of the electromagnetic wave oscillator by the control device.

本発明の昇圧回路を含む電磁波発振装置は、昇圧チョッパに平滑化コンデンサ、例えば電解コンデンサを配設することなく、電磁波発振器の発振タイミングに合わせて高電圧を非平滑で増幅器に出力する。   The electromagnetic wave oscillation device including the booster circuit of the present invention outputs a high voltage non-smoothly to the amplifier in accordance with the oscillation timing of the electromagnetic wave oscillator without providing a smoothing capacitor, for example, an electrolytic capacitor, in the boost chopper.

この場合において、前記制御装置は、電磁波発振器の制御を兼ねるようにすることができる。   In this case, the control device can also control the electromagnetic wave oscillator.

本発明の昇圧回路を含む電磁波発振装置は、電磁波発振器からの電磁波の発振がないときには増幅器への電圧の印加を止めることできるから、増幅器などのデバイス保護を十分に図ることができる。また、複数の昇圧チョッパから順次電圧を主力するように構成しているから１の昇圧チョッパのインダクタに電源からのエネルギを十分に蓄えることができる。   Since the electromagnetic wave oscillation device including the booster circuit according to the present invention can stop the application of voltage to the amplifier when there is no electromagnetic wave oscillation from the electromagnetic wave oscillator, the device such as the amplifier can be sufficiently protected. In addition, since the voltage is sequentially main- tained from a plurality of boost choppers, energy from the power source can be sufficiently stored in the inductor of one boost chopper.

本発明の昇圧回路を含む電磁波発振装置の概略図である。1 is a schematic diagram of an electromagnetic wave oscillation device including a booster circuit according to the present invention. 同昇圧回路を含む電磁波発振装置の昇圧回路の回路図（昇圧チョッパ）である。It is a circuit diagram (boost chopper) of the booster circuit of the electromagnetic wave oscillation device including the booster circuit. 本発明の昇圧回路を含む電磁波発振装置における、電磁波発振器の電磁波発振パターンに合わせた昇圧チョッパのスイッチング素子のＯＮ／ＯＦＦパターン示すグラフである。It is a graph which shows the ON / OFF pattern of the switching element of the pressure | voltage rise chopper matched with the electromagnetic wave oscillation pattern of the electromagnetic wave oscillator in the electromagnetic wave oscillation apparatus containing the pressure | voltage rise circuit of this invention.

以下、本発明の実施形態を図面に基づいて詳細に説明する。なお、以下の実施形態は、本質的に好ましい例示であって、本発明、その適用物、あるいはその用途の範囲を制限することを意図するものではない。   Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. The following embodiments are essentially preferable examples, and are not intended to limit the scope of the present invention, its application, or its use.

＜実施形態１＞
本実施形態１は、本発明に係る昇圧回路を含む電磁波発振装置である。当該昇圧回路を含む電磁波発振装置１は、図１に示すように、複数の昇圧チョッパ２ａ、２ｂ、２ｃ、２ｄ（以下、総称するときは昇圧チョッパ２と呼ぶ。インダクタＬ、スイッチング素子Ｓ、ダイオードＤ、セラミックコンデンサＣも同様に取り扱う。）を備えた昇圧回路２０と、昇圧チョッパ２のスイッチング素子Ｓを制御する制御装置５と、所定電圧の供給を受ける電磁波発振器３と、この電磁波発振器３からの電磁波を増幅する増幅器４とを備え、昇圧チョッパ２は、制御装置４によって、電磁波発振器３の発振タイミングに合わせて、複数の昇圧チョッパ２ａ、２ｂ、２ｃ、２ｄから順次電流を増幅器４に非平滑で出力するようにしている。制御装置４は、スイッチング素子Ｓの制御のみならず、電磁波発振器３の制御を兼ねるようすることがこのましい。<Embodiment 1>
The first embodiment is an electromagnetic wave oscillation device including a booster circuit according to the present invention. As shown in FIG. 1, the electromagnetic wave oscillation device 1 including the booster circuit includes a plurality of booster choppers 2a, 2b, 2c, and 2d (hereinafter collectively referred to as booster choppers 2. Inductors L, switching elements S, and diodes). D and ceramic capacitor C are also handled in the same manner), a control device 5 that controls the switching element S of the boost chopper 2, an electromagnetic wave oscillator 3 that is supplied with a predetermined voltage, and the electromagnetic wave oscillator 3 The step-up chopper 2 is supplied to the amplifier 4 sequentially from the plurality of step-up choppers 2a, 2b, 2c and 2d in accordance with the oscillation timing of the electromagnetic wave oscillator 3 by the control device 4. The output is smooth. It is preferable that the control device 4 not only controls the switching element S but also controls the electromagnetic wave oscillator 3.

昇圧回路２０を構成する昇圧チョッパ２の数は、複数であれば特に限定するものではないが、本実施形態においては４つ昇圧チョッパ２を備えている。そして、本実施形態の昇圧チョッパ２は、周知の昇圧チョッパと同様、インダクタＬは、インダクタＬの図例右端に接続されるスイッチング素子ＳをＯＮにすることで直流電源Ｐからのエネルギを蓄える。そして、スイッチング素子ＳをＯＦＦにすることで、ダイオードＤを介して、高電圧の電流が高圧側の増幅器４に注入される。   The number of boost choppers 2 constituting the booster circuit 20 is not particularly limited as long as it is plural, but in the present embodiment, four boost choppers 2 are provided. In the boost chopper 2 of the present embodiment, the inductor L stores energy from the DC power supply P by turning on the switching element S connected to the right end of the inductor L in the figure as in the known boost chopper. Then, by turning off the switching element S, a high voltage current is injected into the high voltage side amplifier 4 via the diode D.

そして、本実施形態の昇圧チョッパ２を構成するコンデンサは、周知の昇圧チョッパに使用される出力電流の平滑化を行う平滑コンデンサ（例えば、大容量１０μＦ以上の電解コンデンサ）ではなく、単にノイズを除去する０．５μＦ程度のセラミックコンデンサＣである。そのため、本実施形態のセラミックコンデンサＣは、昇圧チョッパ２を含む昇圧回路２内の浮遊容量による出力側となる増幅器４に過渡的なノイズを発生させる心配が無い場合は、その設置を省略することができる。   The capacitor constituting the step-up chopper 2 of this embodiment is not a smoothing capacitor (for example, an electrolytic capacitor having a large capacity of 10 μF or more) that smoothes the output current used in a known step-up chopper, but simply removes noise. This is a ceramic capacitor C of about 0.5 μF. For this reason, the ceramic capacitor C according to the present embodiment is omitted when there is no fear of generating transient noise in the amplifier 4 on the output side due to the stray capacitance in the booster circuit 2 including the booster chopper 2. Can do.

電磁波発振器３は、常時所定電圧、例えば１２Ｖを直流電源Ｐから供給される。そして、制御装置５から電磁波発振信号（例えばＴＴＬ信号）を受けると、所定のデューティー比、パルス時間等を設定したパターンで電磁波（マイクロ波、例えば２．４５ＧＨｚ）を出力する。３０は、電磁波発振器３へ供給される電流の平滑回路である。また、電磁波発振器３への電流の供給は直流電源Ｐから直接供給することなく昇圧回路２０から供給するようにしても構わない（図１の二点鎖線参照）。   The electromagnetic wave oscillator 3 is always supplied with a predetermined voltage, for example, 12 V from the DC power source P. When an electromagnetic wave oscillation signal (for example, TTL signal) is received from the control device 5, an electromagnetic wave (microwave, for example, 2.45 GHz) is output in a pattern in which a predetermined duty ratio, pulse time, and the like are set. Reference numeral 30 denotes a smoothing circuit for a current supplied to the electromagnetic wave oscillator 3. Further, the current may be supplied to the electromagnetic wave oscillator 3 from the booster circuit 20 without being supplied directly from the DC power source P (see the two-dot chain line in FIG. 1).

増幅器４は、電磁波発振器３から出力された数Ｗ程度の電磁波を数ｋＷまで増幅し、点火装置や電磁波照射アンテナに供給する。   The amplifier 4 amplifies the electromagnetic wave of about several W output from the electromagnetic wave oscillator 3 to several kW, and supplies it to an ignition device or an electromagnetic wave irradiation antenna.

増幅器４に印加する電圧は、図３に示すように、電磁波発振器３の電磁波発振パターンに合わせ、１つめのパルス発振ａに対してはスイッチング素子ＳａのみをＯｆｆとして昇圧回路２０から直流電源Ｐから供給を受けた電圧（例えば、１２Ｖ）を昇圧（例えば、３２Ｖ）して印加する。ついで、２つめのパルス発振ｂに対してはスイッチング素子ＳｂのみをＯｆｆとして昇圧回路２０から電圧を印加し、パルス発振ｃ、パルス発振ｄと以下同様に繰り返す。各スイッチング素子ＳのＯｆｆ時間が、直流電源Ｐから供給を受けた電圧に対して長すぎる場合は、各スイッチング素子ＳのＯｎ時間で調整する。なお、増幅器４への高電圧の印加は、電磁波発振器３から電磁波を発振するよりも若干（数マイクロ秒又は数ナノ秒）早く印加するように制御することが好ましい。   As shown in FIG. 3, the voltage applied to the amplifier 4 is matched with the electromagnetic wave oscillation pattern of the electromagnetic wave oscillator 3 and only the switching element Sa is turned off for the first pulse oscillation a. The supplied voltage (for example, 12V) is boosted (for example, 32V) and applied. Next, with respect to the second pulse oscillation b, only the switching element Sb is turned off, a voltage is applied from the booster circuit 20, and the same is repeated for the pulse oscillation c and the pulse oscillation d. When the OFF time of each switching element S is too long for the voltage supplied from the DC power supply P, the ON time of each switching element S is adjusted. The application of the high voltage to the amplifier 4 is preferably controlled so that it is applied slightly (several microseconds or several nanoseconds) earlier than the electromagnetic wave oscillated from the electromagnetic wave oscillator 3.

このように、複数の昇圧チョッパ２を順に用いて、増幅器４に非平滑で高電圧を出力するようにしたから、それぞれの昇圧チョッパ２のインダクタＬに対して、直流電源Ｐから十分なエネルギを蓄えることができ、安定した電圧を増幅器４に必要なときだけ印加して、電磁波発振装置の運用を行うことができる。   As described above, since a plurality of boost choppers 2 are used in order to output a non-smooth high voltage to the amplifier 4, sufficient energy is supplied from the DC power supply P to the inductor L of each boost chopper 2. The electromagnetic wave oscillation device can be operated by applying a stable voltage to the amplifier 4 only when necessary.

＜内燃機関の昇圧回路を含む電磁波発振装置としての効果＞
本発明の昇圧回路を含む電磁波発振装置１を内燃機関の点火装置に電磁波を供給する電磁波発振装置として使用する場合、上述した効果に加え、以下の効果を有する。<Effect as an electromagnetic wave oscillation device including a booster circuit of an internal combustion engine>
When the electromagnetic wave oscillation device 1 including the booster circuit according to the present invention is used as an electromagnetic wave oscillation device that supplies electromagnetic waves to an ignition device of an internal combustion engine, the following effects are obtained in addition to the effects described above.

内燃機関において、電磁波のみで点火する点火装置や従来からの点火プラグに電磁波を供給する電磁波照射アンテナに電磁波を供給する場合、電磁波発振器３の半導体の放熱などの観点から、気筒毎に電磁波発振装置を配設することが好ましいが、従来のように増幅器４に、常時電圧を印加している構成の場合、複数の電磁波発振装置の内、１の電磁波発振装置の電磁波発振器３ａが作動したとき何らかの作動ノイズによって発振の必要がない電磁波発振装置の電磁波発振器３ｂが電磁波発振動作を行う場合がある。その際も増幅器４ｂに電圧が印加されていると誤動作の電磁波発振器３ｂからの電磁波が増幅されて出力されてしまうという不具合がある。しかし、本発明の昇圧回路を含む電磁波発振装置１では、誤動作で動作する電磁波発振器３ｂに対応する増幅器４ｂには電圧が印加されていないからそのような不具合が発生することがない。   In an internal combustion engine, when an electromagnetic wave is supplied to an ignition device that ignites only with an electromagnetic wave or an electromagnetic wave irradiation antenna that supplies an electromagnetic wave to a conventional spark plug, an electromagnetic wave oscillation device is provided for each cylinder from the viewpoint of heat dissipation of the semiconductor of the electromagnetic wave oscillator 3. However, in the case where the voltage is always applied to the amplifier 4 as in the prior art, when the electromagnetic wave oscillator 3a of one of the electromagnetic wave oscillators is activated, There is a case where the electromagnetic wave oscillator 3b of the electromagnetic wave oscillator that does not need to oscillate due to the operating noise performs an electromagnetic wave oscillation operation. At this time, if a voltage is applied to the amplifier 4b, there is a problem that the electromagnetic wave from the malfunctioning electromagnetic wave oscillator 3b is amplified and output. However, in the electromagnetic wave oscillation device 1 including the booster circuit of the present invention, such a problem does not occur because no voltage is applied to the amplifier 4b corresponding to the electromagnetic wave oscillator 3b operating in a malfunction.

以上説明したように、本発明の昇圧回路を含む電磁波発振装置は、自動車エンジン等の内燃機関の点火装置、点火プラグへの電磁波照射アンテナに電磁波を発振する用途に好適に用いられる。また、本発明の昇圧回路を含む電磁波発振装置を電磁波照射アンテナに利用するときは、高周波吸収体を利用した加熱装置にマイクロ波を供給する装置に使用する場合や、電子レンジに代表される誘電加熱を利用した加熱装置の他、生ゴミ処理機等にも好適に用いることができる。   As described above, the electromagnetic wave oscillation device including the booster circuit according to the present invention is suitably used for an application for oscillating an electromagnetic wave in an ignition device for an internal combustion engine such as an automobile engine and an electromagnetic wave irradiation antenna for an ignition plug. In addition, when the electromagnetic wave oscillation device including the booster circuit of the present invention is used for an electromagnetic wave irradiation antenna, it is used for a device for supplying microwaves to a heating device using a high frequency absorber, or a dielectric such as a microwave oven. In addition to a heating device using heating, it can be suitably used in a garbage disposal machine or the like.

１ 昇圧回路を含む電磁波発振装置
２ 昇圧チョッパ
２０ 昇圧回路
３ 電磁波発振器
４ 増幅器
５ 制御装置
Ｓ スイッチング素子
Ｌ インダクタ
Ｄ ダイオード
Ｃ セラミックコンデンサ
Ｐ 直流電源DESCRIPTION OF SYMBOLS 1 Electromagnetic oscillation apparatus including a booster circuit 2 Booster chopper 20 Booster circuit 3 Electromagnetic wave oscillator 4 Amplifier 5 Controller S Switching element L Inductor D Diode C Ceramic capacitor P DC power supply

Claims (2)

複数の昇圧チョッパを備えた昇圧回路と、
前記昇圧チョッパのスイッチング素子を制御する制御装置と、
所定電圧の供給を受ける電磁波発振器と、
該電磁波発振器からの電磁波を増幅する増幅器とを備え、
前記昇圧チョッパは、制御装置によって、電磁波発振器の発振タイミングに合わせて、複数の昇圧チョッパから順次電流を増幅器に非平滑で出力するようにした昇圧回路を含む電磁波発振装置A step-up circuit having a plurality of step-up choppers;
A control device for controlling the switching element of the step-up chopper;
An electromagnetic wave oscillator receiving a predetermined voltage;
An amplifier for amplifying the electromagnetic wave from the electromagnetic wave oscillator,
The step-up chopper includes a step-up circuit in which a current is non-smoothly output to an amplifier from a plurality of step-up choppers according to the oscillation timing of the electromagnetic wave oscillator by a control device. 前記制御装置は、電磁波発振器の制御を兼ねるように昇圧回路を含むようにした請求項１記載の電磁波発振装置   2. The electromagnetic wave oscillation device according to claim 1, wherein the control device includes a booster circuit so as to also serve as an electromagnetic wave oscillator control.
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