AC magnetic controlled power regulation electrical inductance ballast
A ballast and magnetron technology, applied in the direction of inductors, circuits, transformers, etc., can solve the problems of complex control circuits, adjustable DC voltage circuits not working properly, and complicated processes.
Active Publication Date: 2011-04-27
刘耘思
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Problems solved by technology
Although this method can use the magnetic amplifier to adjust the working voltage value of the load, it has the following defects: ① The process of making the output terminal of the control winding have no AC voltage output is particularly cumbersome, if there is voltage at the output terminal of the control winding, it will be harmful The adjustable DC voltage circuit connected to both ends of the output terminal has an influence, so that the adjustable DC voltage circuit cannot work normally; ② a special adjustable DC voltage circuit is required, which makes the entire control circuit complicated
[0003] In order to solve the above problems, the inventor invented the invention patent (Patent No.: 200510018814.9) of "Controllable Inductance of AC Excitation Amplifier". ' to prevent the defect of controllable inductor saturation (Figure 1)
Method used
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Embodiment 1
[0021] The iron core used in the present invention is a standard "E" iron core, wherein the main magnetic road tongue width l1 is twice the side magnetic road tongue width 12, the main winding L and the control winding N1 are wound on the main magnetic track, and the regulating winding N is wound on an independent side track (Figure 4).
Embodiment 2
[0023] The iron core used in the present invention is a "口" iron core, and the tongue widths of the magnetic circuits on both sides of the "口" iron core are different. The main winding L and the control winding N1 are wound on the track with a wider tongue width, and the adjusting winding N is wound On tracks with a narrow tongue width (Fig. 5).
Embodiment 3
[0025] The iron core adopted in the present invention is a "day" iron core, and the tongue widths of the magnetic circuits on both sides of the "day" iron core are different. On the narrow track, the control winding N1 is wound on the middle track (Figure 6).
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The invention relates to a magnetic control dimming inductance ballast that has a main winding winded on a main magnetic circuit of an iron core having at least two magnetic circuits and a regulatory winding winded on an iron core of a side magnetic circuit. The regulatory winding is connected with a control circuit that controls the phase and induced current of the regulatory winding. The invention is characterized in that: the magnetic flux of the side magnetic circuit is smaller than the magnetic flux of the main magnetic circuit. As the invention adopts the main winding winded on the mainmagnetic circuit and the regulatory winded on the side magnetic circuit, and the magnetic flux of the side magnetic circuit is smaller than the magnetic flux of the main magnetic circuit, the inductance of the main magnetic circuit is not full, and another inductor is not required in a series connection during utilization. Besides all advantages of No.200510018814.9 invention, the invention has only two connecting lines and is capable of work by being connected in a main circuit of inductive load that requires dimming, as using ballast in the previous way.
Description
technical field [0001] The invention belongs to an inductance ballast for inductive loads, in particular to an AC magnetic control power regulating inductance ballast. Background technique [0002] At present, in the control of inductive loads, especially in circuits that use magnetic amplifiers to adjust and control AC power, the commonly used method is to connect the main winding of a magnetic amplifier in series in the main circuit of the load. The AC windings are respectively wound on the upper and the control windings are reversely connected in series. When an AC current is generated on the main winding of the magnetic amplifier, the output end of the control winding has no AC voltage output, and then an adjustable voltage is connected to both ends of the output end. DC voltage is used to control the magnitude of the DC current in the winding to control the excitation current in the main winding of the magnetic amplifier, which can control the induc...
Claims
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IPC IPC(8): H05B41/38H05B41/14H01F38/10
Inventor 刘双喜刘耘思
Owner 刘耘思