JPH042983U

JPH042983U -

Info

Publication number: JPH042983U
Application number: JP1990040699U
Authority: JP
Priority date: 1990-04-18
Filing date: 1990-04-18
Publication date: 1992-01-10

Description

[Brief explanation of the drawing]

第１図ａ，ｂ，ｃはそれぞれ本考案の電力変換
回路の１実施例を示す回路図、第２図、第３図、
第４図はそれぞれ従来の直列インバータ回路を示
す回路図、第５図、第６図はそれぞれ本考案の電
力変換回路の１実施例を示す回路図、第７図、第
８図、第９図はそれぞれ本考案の点火回路の１実
施例を示す回路図、第１０図は本考案の電力変換
回路の１実施例を示す回路図、である。符号の説明、７……コイル、８……負荷、１１
，１２……コンデンサ、１５，１６……コイル、
１８……変圧器、１９……点火コイル、２０……
点火用放電ギヤツプ、２１……点火コイル、２２
……整流器。 Figures 1a, b, and c are circuit diagrams showing one embodiment of the power conversion circuit of the present invention, Figures 2 and 3, respectively.
FIG. 4 is a circuit diagram showing a conventional series inverter circuit, FIGS. 5 and 6 are circuit diagrams showing an embodiment of the power conversion circuit of the present invention, and FIGS. 7, 8, and 9 respectively. are circuit diagrams showing one embodiment of the ignition circuit of the present invention, and FIG. 10 is a circuit diagram showing one embodiment of the power conversion circuit of the present invention. Explanation of symbols, 7...Coil, 8...Load, 11
, 12... Capacitor, 15, 16... Coil,
18...Transformer, 19...Ignition coil, 20...
Ignition discharge gap, 21...Ignition coil, 22
……rectifier.

Claims

[Claims for Utility Model Registration] (1) A first non-controllable switch, first and second controllable switches, and a second non-controllable switch are connected in this order as an arm pair between both power supply terminals of a DC power supply. between the connection point of the first non-controllable switch and the controllable switch and the connection point of the second controllable switch and the non-controllable switch, and third and fourth non-controllable switches are connected in series in the same direction, capacitance means is connected between the connection point of the third and fourth non-controllable switches and one of the power terminals, A power conversion circuit characterized in that either an inductance means or a series circuit of the inductance means and a load is connected between the midpoint terminal and the connection point of the third and fourth non-controllable switches. (2) The power conversion circuit according to claim 1, wherein a resistor is connected in parallel to the first or second non-controllable switch. (3) An ignition circuit according to claim 1 or 2, characterized in that a primary coil of an ignition coil is connected as either one of the ignition coils. (4) A first non-controllable switch, a first controllable switch, and a first inductance means connected in series as an arm pair between both power supply terminals of the DC power supply.
a second series circuit in which a second controllable switch and a second inductance means are connected in series;
and a second non-controllable switch is connected in series in this order, between the connection point of the first non-controllable switch, the series circuit and the connection point of the second series circuit, the non-controllable switch. A third and a fourth non-controllable switch are connected in series in opposite directions to the two non-controllable switches, and between the connection point of the third and fourth non-controllable switches and one of the power supply terminals. A power conversion circuit characterized in that a capacitance means is connected, and a first load is connected between a midpoint terminal of the pair of arms and a connection point of the third and fourth non-controllable switches. (5) The power conversion circuit according to claim 4, characterized in that a resistor is connected in parallel to the first or second non-controllable switch. (6) The power conversion circuit according to claim 4 or 5, wherein the first and second inductance means are magnetically coupled. (7) the first or second inductance means;
7. The power conversion circuit according to claim 6, wherein the second load is connected in parallel to the third inductance means magnetically coupled thereto. (8) The power conversion circuit according to claim 7, wherein both ends of the first load are short-circuited and this load is removed. (9) The power conversion circuit according to claim 8, wherein two primary coils of an ignition coil and a secondary coil thereof are used as the first to third inductance means. (10) The first non-controllable switch, the first and second controllable switches, and the second non-controllable switch are connected in series in this order to form an arm pair, and the two Two DC power supplies are connected in series in the same direction, and two Third and fourth non-controllable switches are connected in series in opposite directions to the non-controllable switch, and capacitance means is provided between the connection point of the third and fourth non-controllable switches and the connection point of both DC power sources. and either an inductance means or a series circuit of the inductance means and a load is connected between the connection point of the third and fourth non-controllable switches and the midpoint terminal of the pair of arms. A power conversion circuit featuring: (11) The power conversion circuit according to claim 10, characterized in that a resistor is connected in parallel to the first or second non-controllable switch. (12) In the power conversion circuit according to claim 10 or 11, one of the ignition coils as either one of the above.
An ignition circuit characterized in that the following coils are connected.