CN100424977C

CN100424977C - Capacitor push-pull highly effective transformer

Info

Publication number: CN100424977C
Application number: CNB2006100160612A
Authority: CN
Inventors: 邢柏松
Original assignee: TIANJIN ZHENGFANG INDUSTRY Co Ltd
Current assignee: TIANJIN ZHENGFANG INDUSTRY Co Ltd
Priority date: 2006-09-29
Filing date: 2006-09-29
Publication date: 2008-10-08
Anticipated expiration: 2026-09-29
Also published as: CN1929275A

Abstract

This invention discloses one capacitor push-pull effective transducer, which has power input through rectification circuit and filter circuit into transducer, wherein, the transducer is of high frequency transducer through switch K1 and K2 to control capacitor charging and discharging to output transducer voltage. This invention uses steel blade as carter and with simple process to realize automatic production with low cost.

Description

Capacitor push-pull highly effective transformer

Technical field

The present invention relates to a kind of transformer.Relate to particularly that a kind of cost is low, manufacturing process is simple, rate of finished products is high, and can realize automated production, save the capacitor push-pull highly effective transformer of steel.

Background technology

The material of the transformer that we used or saw usually mostly is to use copper material and silicon steel sheet, because the prices of raw and semifnished materials raise up in recent years, especially copper material and the silicon steel sheet price of making transformer go up synchronously, production to the electronic transformer product has directly caused significant impact, makes the hurried rising of its manufacturing cost.And current voltage transformation technology only limits to a current techique such as iron-core transformer, electronic switch power, and piezoelectric transformer is in test is produced, its production cost is also higher, do not possess to produce and apply condition, thus attempt to explore a kind of efficiently, switch technology can solve because of the material price problem that the transformer cost that produced rises that goes up cheaply.

Summary of the invention

Technical problem to be solved by this invention is, provides that a kind of cost is low, manufacturing process is simple, rate of finished products is high, and can realize automated production, saves the capacitor push-pull highly effective transformer of steel.

The technical solution adopted in the present invention is: a kind of capacitor push-pull highly effective transformer, and its power supply input at first is input in the transformer through the rectification of rectification circuit and the filtering of filter circuit again, and described filter circuit is by capacitor C ₁, C ₂After the series connection again with electrochemical capacitor C ₀Formation in parallel, the cathode output end of filter circuit connects K switch ₁Collector electrode, also pass through resistance R ₁And R ₂Connect K switch ₁Base stage, capacitor C ₁, C ₂Between tie point meet the first coil L of transformer ₁Initiating terminal, L ₁Tail end connect K switch ₁Emitter and K switch ₂Collector electrode, the first coil L ₁Tail end also connect the second coil L of transformer ₂Initiating terminal, coil L ₂Tail end pass through capacitor C ₃, resistance R ₂Connect K switch ₁Base stage, transformer tertiary coil L ₃Initial termination K switch ₂Base stage, coil L ₃Tail end pass through capacitor C ₄With resistance R ₃The negative pole of series connection filter circuit output, the 4th coil L of transformer ₄Initiating terminal by diode D ₁To the transformer output head anode, the 4th coil L ₄Tail end and the 5th coil L of transformer ₅Initiating terminal one play the negative pole of transformer output, the 5th coil L ₅Tail end by diode D ₂Positive pole to the transformer output also is connected with electrochemical capacitor C between the transformer output positive and negative charge ₀₁, K switch ₁Base stage and emitter between be connected with diode D ₄, K switch ₁Emitter and K switch ₂Base stage between be connected with resistance R ₄, K switch ₂Base stage and emitter between be connected with diode D ₃

Described transformer is many windings high frequency transformer, wherein: the first coil L ₁It is the main inductance coil; The second coil L ₂, tertiary coil L ₃It is coupling base signal line group; The 4th coil L ₄, the 5th coil L ₅It is secondary transformer output winding.

Capacitor push-pull highly effective transformer cost of the present invention is low, the efficient height, and good manufacturability, easily the advantage of making possesses the condition of applying.Have following characteristics:

1. the transformer of this technology production is done iron core without silicon steel sheet, saves the consumption of steel.The consumption of enamelled wire with similar, compare consumption 90% (is example with 120W) that descended with the power iron-core transformer.3. simplified manufacturing process, the rate of finished products height, and can realize automated production.4. overall manufacturing cost with similar, to compare (120W is an example) with the power traditional transformer much lower, the safety lamp of for example making a 120W 36V needs 70 yuan of costs, and adopts capacitor push-pull formula transformer only to need 20 yuan of costs.5. this technology can be used for various adapters, charger, device power supply (DPS).

Description of drawings

Fig. 1 is the circuit theory diagrams of capacitor push-pull highly effective transformer of the present invention.

Embodiment

Below in conjunction with embodiment and accompanying drawing capacitor push-pull highly effective transformer of the present invention is made a detailed description.

As shown in Figure 1, capacitor push-pull highly effective transformer of the present invention, its power supply input at first is input in the transformer through the rectification of bridge rectifier and the filtering of filter circuit again, and described filter circuit is by capacitor C ₁, C ₂After the series connection again with electrochemical capacitor C ₀Formation in parallel, the input of filter circuit is connected with the output of bridge rectifier, and the positive pole of filter circuit output connects K switch ₁Collector electrode, also pass through resistance R ₁And R ₂Connect K switch ₁Base stage, capacitor C ₁, C ₂Between tie point meet the first coil L of transformer ₁Initiating terminal, L ₁Tail end connect K switch ₁Emitter and K switch ₂Collector electrode, the first coil L ₁Tail end also connect the second coil L of transformer ₂Initiating terminal, coil L ₂Tail end pass through capacitor C ₃, resistance R ₂Connect K switch ₁Base stage, transformer tertiary coil L ₃Initial termination K switch ₂Base stage, coil L ₃Tail end pass through capacitor C ₄With resistance R ₃The negative pole of series connection filter circuit output, the 4th coil L of transformer ₄Initiating terminal by diode D ₁To the transformer output head anode, the 4th coil L ₄Tail end and the 5th coil L of transformer ₅Initiating terminal one play the negative pole of transformer output, the 5th coil L ₅Tail end by diode D ₂Positive pole to the transformer output also is connected with electrochemical capacitor C between the transformer output positive and negative charge ₀₁, K switch ₁Base stage and emitter between be connected with diode D ₄, K switch ₁Emitter and K switch ₂Base stage between be connected with resistance R ₄, K switch ₂Base stage and emitter between be connected with diode D ₃Output DC among Fig. 1 constitutes the output of capacitor push-pull highly effective transformer of the present invention.

Transformer at the above is many windings high frequency transformer, and wherein: the first coil L1 is the main inductance coil; The second coil L2, tertiary coil L3 are coupling base signal line groups; The 4th coil L4, the 5th coil L5 are secondary transformer output windings.

In capacitor push-pull highly effective transformer of the present invention, electrochemical capacitor C ₀Play the effect of filtering; Capacitor C ₁Play not only filtering but also the upward effect of dividing potential drop; Capacitor C ₂: play not only filtering but also the effect of dividing potential drop down; Triode K ₁, K ₂Be control switch, can adopt the NPN pipe.

The operation principle conversion process of capacitor push-pull highly effective transformer of the present invention: (1) K switch ₁, K ₂Do not conform to the electrolysis capacitor C ₀Be full of electricity, capacitor C ₁, C ₂Respectively fill half pressure.(2) capacitor C after K switch 2 is closed ₂Through inductance L, K ₂Charging, charging interval are by inductance L, capacitor C ₂Value is determined, simultaneously with capacitor C ₁On electric charge all discharge.(3) K switch in like manner ₂Open K switch ₁Closure, capacitor C ₁Through inductance L charging, capacitor C ₂Discharge, induced electromotive force is described opposite with (2) on the inductance L, and promptly this moment, circuit was finished a work period, the output of transformer induction voltage.

Claims

1. capacitor push-pull highly effective transformer, its power supply input at first is input in the transformer through the rectification of rectification circuit and the filtering of filter circuit again, it is characterized in that described filter circuit is by capacitor C ₁, C ₂After the series connection again with electrochemical capacitor C ₀Formation in parallel, the cathode output end of filter circuit connects K switch ₁Collector electrode, also pass through resistance R ₁And R ₂Connect K switch ₁Base stage, capacitor C ₁, C ₂Between tie point meet the first coil L of transformer ₁Initiating terminal, L ₁Tail end connect K switch ₁Emitter and K switch ₂Collector electrode, the first coil L ₁Tail end also connect the second coil L of transformer ₂Initiating terminal, coil L ₂Tail end pass through capacitor C ₃, resistance R ₂Connect K switch ₁Base stage, transformer tertiary coil L ₃Initial termination K switch ₂Base stage, coil L ₃Tail end pass through capacitor C ₄With resistance R ₃The negative pole of series connection filter circuit output, the 4th coil L of transformer ₄Initiating terminal by diode D ₁To the transformer output head anode, the 4th coil L ₄Tail end and the 5th coil L of transformer ₅Initiating terminal one play the negative pole of transformer output, the 5th coil L ₅Tail end by diode D ₂Positive pole to the transformer output also is connected with electrochemical capacitor C between the transformer output positive and negative charge ₀₁, K switch ₁Base stage and emitter between be connected with diode D ₄, K switch ₁Emitter and K switch ₂Base stage between be connected with resistance R ₄, K switch ₂Base stage and emitter between be connected with diode D ₃

2. capacitor push-pull highly effective transformer according to claim 1 is characterized in that, described transformer is many windings high frequency transformer, wherein: the first coil L ₁It is the main inductance coil; The second coil L ₂, tertiary coil L ₃It is coupling base signal line group; The 4th coil L ₄, the 5th coil L ₅It is secondary transformer output winding.