JPH0435688U

JPH0435688U -

Info

Publication number: JPH0435688U
Application number: JP7563390U
Authority: JP
Priority date: 1990-07-18
Filing date: 1990-07-18
Publication date: 1992-03-25

Description

[Brief explanation of the drawing]

図面は本考案に関するトランス駆動回路の一実
施例を示し、第１図は回路構成図、第２図はトラ
ンジスタのオン、オフのタイミングチヤート、第
３図は他の実施例を示す回路構成図、第４図乃至
第７図は従来例を示し、第４図は回路構成図、第
５図はトランジスタのオン、オフのタイミングチ
ヤート、第６図はトランジスタの立ち上がり、立
ち下がり特性図、第７図は信号とノイズとの関係
説明図である。主要部分を示す図面の符号の説明、１……トラ
ンス、２……発振器、３……電源、４……ブリツ
ジ回路、Ｔｒ１，Ｔｒ２，Ｔｒ３，Ｔｒ４……ト
ランジスタ、ａ１，ａ２，ａ３，ａ４……ゲート
、５Ａ，５Ｂ，５Ｃ，５Ｄ……回線、Ｒ１，Ｒ２
，Ｒ３，Ｒ４……抵抗、５ａ，５ｂ，５ｃ，５ｄ
……回線、Ｒ５ａ，Ｒ５ｂ，Ｒ５ｃ，Ｒ５ｄ……
抵抗、Ｒ５ａｂ，Ｒ５ｃｄ……抵抗、６，７，８
……インバータ、９Ａ，９Ｂ，９Ｃ，９Ｄ……ダ
イオード。 The drawings show one embodiment of a transformer drive circuit related to the present invention, FIG. 1 is a circuit configuration diagram, FIG. 2 is a transistor on/off timing chart, and FIG. 3 is a circuit configuration diagram showing another embodiment. Figures 4 to 7 show conventional examples, Figure 4 is a circuit configuration diagram, Figure 5 is a transistor on/off timing chart, Figure 6 is a transistor rise and fall characteristic diagram, and Figure 7 is a diagram of the transistor. is an explanatory diagram of the relationship between signals and noise. Explanation of symbols in the drawings showing main parts: 1...transformer, 2...oscillator, 3...power supply, 4...bridge circuit, Tr1, Tr2, Tr3, Tr4...transistor, a1, a2, a3, a4... ...Gate, 5A, 5B, 5C, 5D...Line, R1, R2
, R3, R4...Resistance, 5a, 5b, 5c, 5d
...Line, R5a, R5b, R5c, R5d...
Resistance, R5ab, R5cd...Resistance, 6, 7, 8
...Inverter, 9A, 9B, 9C, 9D...Diode.

Claims

[Scope of utility model registration request]

The drive signal of the transformer output from the oscillator is transmitted to the bridge circuit in which the transistors Tr1 and Tr2 and the transistors Tr3 and Tr4 with different polarities are bridge-connected.
2. In a transformer drive circuit that drives a transformer by inputting to the input terminals of Tr3 and Tr4, the oscillator and transistors Tr1 and Tr2
, Tr3, Tr4, each of the lines connecting the input terminals has diodes connected in opposite directions to each other, and the line having a resistance value lower than that of the line connecting the oscillator and each input terminal is connected in parallel. Transformer drive circuit.