JP2021065024A - 高周波電源回路及び増幅回路の定数決定方法 - Google Patents
高周波電源回路及び増幅回路の定数決定方法 Download PDFInfo
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- H03F—AMPLIFIERS
- H03F1/00—Details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements
- H03F1/56—Modifications of input or output impedances, not otherwise provided for
- H03F1/565—Modifications of input or output impedances, not otherwise provided for using inductive elements
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- 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
- H02M1/00—Details of apparatus for conversion
- H02M1/12—Arrangements for reducing harmonics from ac input or output
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- 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
- H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
- H02M7/42—Conversion of dc power input into ac power output without possibility of reversal
- H02M7/44—Conversion of dc power input into ac power output without possibility of reversal by static converters
- H02M7/48—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
- H02M7/4815—Resonant converters
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- 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
- H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
- H02M7/42—Conversion of dc power input into ac power output without possibility of reversal
- H02M7/44—Conversion of dc power input into ac power output without possibility of reversal by static converters
- H02M7/48—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
- H02M7/53—Conversion of dc power input into ac power output without possibility of reversal 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
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F1/00—Details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements
- H03F1/02—Modifications of amplifiers to raise the efficiency, e.g. gliding Class A stages, use of an auxiliary oscillation
- H03F1/0205—Modifications of amplifiers to raise the efficiency, e.g. gliding Class A stages, use of an auxiliary oscillation in transistor amplifiers
- H03F1/0277—Selecting one or more amplifiers from a plurality of amplifiers
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
- H03F3/189—High-frequency amplifiers, e.g. radio frequency amplifiers
- H03F3/19—High-frequency amplifiers, e.g. radio frequency amplifiers with semiconductor devices only
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
- H03F3/189—High-frequency amplifiers, e.g. radio frequency amplifiers
- H03F3/19—High-frequency amplifiers, e.g. radio frequency amplifiers with semiconductor devices only
- H03F3/193—High-frequency amplifiers, e.g. radio frequency amplifiers with semiconductor devices only with field-effect devices
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
- H03F3/20—Power amplifiers, e.g. Class B amplifiers, Class C amplifiers
- H03F3/21—Power amplifiers, e.g. Class B amplifiers, Class C amplifiers with semiconductor devices only
- H03F3/217—Class D power amplifiers; Switching amplifiers
- H03F3/2176—Class E amplifiers
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
- H03F3/20—Power amplifiers, e.g. Class B amplifiers, Class C amplifiers
- H03F3/21—Power amplifiers, e.g. Class B amplifiers, Class C amplifiers with semiconductor devices only
- H03F3/217—Class D power amplifiers; Switching amplifiers
- H03F3/2178—Class D power amplifiers; Switching amplifiers using more than one switch or switching amplifier in parallel or in series
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
- H03F3/72—Gated amplifiers, i.e. amplifiers which are rendered operative or inoperative by means of a control signal
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F2200/00—Indexing scheme relating to amplifiers
- H03F2200/387—A circuit being added at the output of an amplifier to adapt the output impedance of the amplifier
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F2200/00—Indexing scheme relating to amplifiers
- H03F2200/391—Indexing scheme relating to amplifiers the output circuit of an amplifying stage comprising an LC-network
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F2200/00—Indexing scheme relating to amplifiers
- H03F2200/451—Indexing scheme relating to amplifiers the amplifier being a radio frequency amplifier
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F2203/00—Indexing scheme relating to amplifiers with only discharge tubes or only semiconductor devices as amplifying elements covered by H03F3/00
- H03F2203/72—Indexing scheme relating to gated amplifiers, i.e. amplifiers which are rendered operative or inoperative by means of a control signal
- H03F2203/7236—Indexing scheme relating to gated amplifiers, i.e. amplifiers which are rendered operative or inoperative by means of a control signal the gated amplifier being switched on or off by putting into parallel or not, by choosing between amplifiers by (a ) switch(es)
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- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
- Y02B70/10—Technologies improving the efficiency by using switched-mode power supplies [SMPS], i.e. efficient power electronics conversion e.g. power factor correction or reduction of losses in power supplies or efficient standby modes
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Abstract
Description
(実施形態1)
図1は、実施形態1に係る高周波電源回路100の構成例を示すブロック図である。高周波電源回路100は、自回路に固有の周波数の信号を増幅する増幅回路1を備えており、増幅回路1に直流電源2から電流が供給されて信号発生器3から上記固有の周波数の信号が入力された場合に、増幅回路1にて増幅した信号の電流を負荷RLに出力する。本実施形態1では、固有の周波数が40.68MHzであるが、これに限定されるものではなく、例えば2MHz、13.56MHz、27MHz、60MHz等の工業用のRF帯(Radio Frequency )の周波数であってもよい。これらのうちの特定の周波数に適合するように、増幅回路1における回路定数の値が決定された場合、当該特定の周波数が固有の周波数となる。
(b)Lr1=460nH、C1=226pF、Z=(1.0k+j0)Ω
(c)Lr1=488nH、C1=160pF、Z=(2.0k+j0)Ω
実施形態1は、高周波電源回路100が増幅回路1を1つ備える形態であるのに対し、実施形態2は、高周波電源回路100aが2つの増幅回路1を備える集合回路10を2つ含んでおり、4つの増幅回路1の出力が突き合わされる形態である。各集合回路10が備える増幅回路1の数は1つ又は3つ以上であってもよい。
実施形態2は、4つの増幅回路1がそれぞれ有するキャパシタC1が並列に接続される形態であるのに対し、変形例1は、4つのキャパシタC1に代えて1つのキャパシタC2を備える形態である。
1、1b 増幅回路
2 直流電源
3 信号発生器
4 制御部
10、10b 集合回路
Lf1、Lr1 インダクタ
Cp1、Cr1、C1、C2 キャパシタ
Sr1 LC直列回路
Q1 トランジスタ
Rg1 抵抗器
RL 負荷
Claims (6)
- 直流電源に一端が接続されるインダクタと、該インダクタの他端に一端が接続されたスイッチング素子と、該スイッチング素子に並列に接続されたキャパシタと、前記スイッチング素子の一端に一端が接続されたLC直列回路とを有する増幅回路を備える高周波電源回路であって、
前記増幅回路は、
前記LC直列回路の他端及び前記スイッチング素子の他端の間に接続された第2のキャパシタを更に有し、
前記スイッチング素子の制御端子に入力された固有の周波数の信号を増幅して、前記LC直列回路の他端及び前記第2のキャパシタの接続点から前記周波数の電流を負荷に出力する高周波電源回路。 - 前記スイッチング素子がオンである場合、前記負荷から前記増幅回路側を見たときの前記周波数におけるインピーダンスの絶対値は、前記負荷のインピーダンスより十分大きい請求項1に記載の高周波電源回路。
- 前記LC直列回路の一端から前記負荷側を見たときの前記周波数におけるインピーダンスのリアクタンス成分は誘導性である請求項1又は請求項2に記載の高周波電源回路。
- 1又は複数の前記増幅回路を備える集合回路を2つ含み、
各増幅回路が有するLC直列回路の他端同士を接続してある
請求項1から請求項3の何れか1項に記載の高周波電源回路。 - 2つの前記集合回路のそれぞれが備える増幅回路が有するスイッチング素子の制御端子に、前記周波数の信号を入力する信号発生器を前記集合回路毎に備え、
2つの前記信号発生器は、出力する信号の位相差が可変である
請求項4に記載の高周波電源回路。 - 第1インダクタと、該第1インダクタの一端に一端が接続されたスイッチング素子と、該スイッチング素子に並列に接続された第1キャパシタと、前記スイッチング素子の一端に一端が接続されており、第2キャパシタ及び第2インダクタを含むLC直列回路と、該LC直列回路の他端及び前記スイッチング素子の他端の間に接続された第3キャパシタとを有する増幅回路における回路定数を決定する方法であって、
前記第3キャパシタを除いた回路が固有周波数の信号を増幅するE級増幅回路となるように、前記第1インダクタ及び前記第2インダクタそれぞれのインダクタンス並びに前記第1キャパシタ及び前記第2キャパシタそれぞれのキャパシタンスを決定し、
前記第3キャパシタを含めた回路にて前記スイッチング素子がオンである場合に、前記LC直列回路の他端及び前記第3キャパシタの接続点から前記増幅回路側を見たときの前記固有周波数におけるインピーダンスの抵抗成分が無限大に近づき、且つリアクタンス成分が0に近づくように、先に決定した前記第2インダクタのインダクタンスをより大きくし、且つ前記第3キャパシタのキャパシタンスを調整する増幅回路の定数決定方法。
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US17/004,405 US11329614B2 (en) | 2019-10-11 | 2020-08-27 | High-frequency power supply circuit and determining method of constants of amplifier circuit |
KR1020200108770A KR20210043428A (ko) | 2019-10-11 | 2020-08-27 | 고주파 전원 회로 및 증폭 회로의 정수 결정 방법 |
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