阅读说明：本技术 三开关斩控调压高变补偿交流调压电源 (Three-switch chopping control voltage-regulating high-conversion compensation alternating-current voltage-regulating power supply ) 是由 龚秋声 于 2018-08-18 设计创作，主要内容包括：一种三开关交流斩控双向调压电路和应用它设计的三开关斩控调压高变补偿交流稳压电源,它由高频变压器T、高频感容LC、全控开关S1和S3、半控开关S3及其控制电路组成,其特征在于；两个交流斩控调压电路使用同一半开关S3续流、高频变压器T初级绕组有1个中心抽头,调节2个全控开关S1和S2的占空比实现双向调压和稳压。全控开关S1和S2各由2个二极管和2个三极管组成,或由4个二极管和1个三极管组成,半控开关S3由2个单向晶闸管反并联组成。它具有体积小、重量轻、成本低优点,有较好的经济和社会效益。(A three-switch AC chopping control two-way voltage regulation circuit and a three-switch chopping control voltage regulation high-variation compensation AC stabilized voltage supply designed by applying the circuit are composed of a high-frequency transformer T, a high-frequency inductance-capacitance LC, full-control switches S1 and S3, a half-control switch S3 and a control circuit thereof, and are characterized in that the high-frequency transformer T is connected with the high-frequency inductance-capacitance LC; the two AC chopping control voltage regulating circuits use the same half switch S3 to follow current, the primary winding of the high-frequency transformer T has 1 central tap, and the duty ratio of 2 full control switches S1 and S2 is adjusted to realize bidirectional voltage regulation and voltage stabilization. The full-control switches S1 and S2 are respectively composed of 2 diodes and 2 triodes, or 4 diodes and 1 triode, and the half-control switch S3 is composed of 2 unidirectional thyristors in anti-parallel connection. It has the advantages of small volume, light weight, low cost and good economic and social benefits.)

1. A kind of three switch exchanges and chops the two-way voltage regulating circuit of control, it is by 1 high-frequency transformer (T), 1 high-frequency inductance (L), 1 high-frequency capacitance (C), 2 unidirectional thyristors (V1, V2) constituent half-controlled switch (S3), 2 diodes and 2 triodes or 4 diodes and 2 full-controlled switches (S1, S2) that 1 triode makes up and its control circuit makes up, there are 2 AC input ends (1, 2), 2 AC output ends (3, 4), characterized by; the control circuit respectively controls the duty ratio of the chopping control full-control switches S1 and S2 to realize bidirectional voltage regulation, a primary winding of a high-frequency transformer T is provided with 1 center tap (2) and 2 ends (5 and 6), a first alternating current input end (1) is connected with one end of the full-control switch S1 and one end of the full-control switch S2, a second alternating current input end (2) is connected with a center tap of a primary extension group of the high-frequency transformer T, the other end (5) of the full-control switch S1 is connected with one end of a primary winding of the high-frequency transformer T and one end of a half-control switch S3, the other end (6) of the full-control switch S2 is connected with the other end of the primary winding of the high-frequency transformer T and the other end of the half-control switch S3, one end (7) of a secondary winding of the high-frequency transformer T is connected with one end of a high-frequency inductor L, a first alternating current output end (3) is connected, The other end of the high-frequency capacitor C is connected.

2. The utility model provides a three switch chop control pressure regulating high variable compensation alternating current voltage regulator power, it comprises 1 high frequency transformer (T), 1 high frequency inductance (L), 1 high frequency electric capacity (C), 1 half accuse switch (S3), 2 full control switch (S1, S2) and control circuit, has 2 alternating current input (1, 2), 2 alternating current output (3, 2), its characterized in that: the control circuit respectively controls the duty ratio of the chopping control full-control switches S1 and S2 to realize bidirectional voltage compensation regulation, a primary winding of the high-frequency transformer T is provided with 1 center tap (2) and 2 ends (5 and 6), a first alternating current input end (1) is connected with one end of the full-control switch S1, one end of the full-control switch S2 and one end of a secondary winding of the high-frequency transformer T, a first alternating current output end (3) is connected with one end of a high-frequency capacitor C and one end of a high-frequency inductor L, the other end (7) of the high-frequency inductor L is connected with the other end of the secondary winding of the high-frequency transformer T, a second alternating current input end (2) is connected with a second alternating current output end and the center tap of the primary winding of the high-frequency transformer T, the other end (5) of the full-control switch S1 is connected with one end of the primary winding of the high-frequency transformer T and one end of, The other end of the semi-controlled switch S3 is connected.

3. The three-switch chopping control voltage regulating high variation compensation ac voltage-stabilized power supply according to claim 2, comprising 3 three-switch chopping control voltage regulating high variation compensation ac voltage-stabilized power supplies according to claim 2, wherein: the 3 three-switch chopping control voltage regulation high-voltage change compensation alternating current stabilized voltage power supply are connected in star.

Technical Field

The invention relates to an alternating current chopping control bidirectional voltage regulating circuit and a high-voltage change compensation type alternating current stabilized voltage supply

Background

CN 204707039U; CN 204707042U; CN 204615661U; CN 20615662U; CN 204615663U: CN204615666U is equivalent to a plurality of four-switch chopping control voltage regulation high-change compensation alternating current voltage regulators designed by the inventor, and the alternating current voltage regulators have the defect of more bidirectional electronic switches.

Disclosure of Invention

The invention provides a three-switch bidirectional AC chopping control voltage regulating circuit, and aims to design a high-variation compensation type AC stabilized power supply.

In order to achieve the first object, the invention provides a three-switch alternating-current chopping control bidirectional voltage regulating circuit, which comprises 1 high-frequency transformer (T), 1 high-frequency inductor (L), 1 high-frequency capacitor (C), 2 half-control switches (S3) consisting of unidirectional thyristors (V1, V2), 2 diodes and 2 triodes or 2 full-control switches (S1, S2) consisting of 4 diodes and 1 triode and a control circuit thereof, and is characterized in that the three-switch alternating-current chopping control bidirectional voltage regulating circuit comprises 2 alternating-current input ends (1, 2) and 2 alternating-current output ends (3, 4); the control circuit respectively controls the duty ratio of the chopping control full-control switches S1 and S2 to realize bidirectional voltage regulation, a primary winding of a high-frequency transformer T is provided with 1 center tap (2) and 2 ends (5 and 6), a first alternating current input end (1) is connected with one end of a full-control switch S1 and one end of a full-control switch S2, a second alternating current input end (2) is connected with a center tap of a primary continuation group of the high-frequency transformer T, the other end (5) of the full-control switch S1 is connected with one end of a primary winding of the high-frequency transformer T and one end of a half-control switch S3, the other end (6) of the full-control switch S2 is connected with the other end of the primary winding of the high-frequency transformer T and the other end of the half-control switch S3, one end (7) of a secondary winding of the high-frequency transformer T is connected with one end of a high-frequency inductor L, a first alternating current output end (3) is connected with, The other end of the high-frequency capacitor C is connected.

In order to realize the second purpose, the three-switch chopping control voltage regulation high-variation compensation alternating-current voltage regulation power supply provided by the invention is characterized in that 2 alternating-current output ends (3 and 4) of the three-switch chopping control bidirectional voltage regulation circuit are connected in series with an unstable alternating-current power supply, and the duty ratio of 2 full-control switches S1 and S2 is automatically fed back and controlled by output voltage, so that the three-switch chopping control voltage regulation high-variation compensation alternating-current voltage regulation power supply is realized.

Drawings

Fig. 1 is a three-switch ac chopping control voltage regulator circuit. FIG. 2 is a three-switch chopping control voltage regulation high-change compensation AC stabilized voltage supply. Wherein: s1 and S2 are full-control switches, S3 is a half-control switch composed of V1 and V2 which are unidirectional thyristors, T is a high-frequency transformer, C is a high-frequency capacitor, and L is a high-frequency inductor.

Detailed Description

In order to further understand the technical solution of the present invention, the present invention is described in detail by the following specific examples.

As can be seen from FIG. 1: 1) the transformer comprises 1 AC chopper voltage regulating circuit composed of full-control switch S1 chopper and half-control switch S3 follow current, U52 chopper voltage is obtained at two ends of primary windings 5 and 2 of a high-frequency transformer T, and induced voltage U47 of a secondary winding of the high-frequency transformer T is reduced into AC voltage which is adjustable in phase with two ends of an AC input at 2 AC output ends after being filtered by a high-frequency inductor L and a high-frequency capacitor C. 2) The other 1 AC chopper voltage regulating circuit composed of full-control switch S2 chopping and half-control open card S3 afterflow obtains U62 chopping voltage at two ends of primary windings 6 and 2 of a high-frequency transformer T, and induced voltage U74 of a secondary winding of the high-frequency transformer T is restored into AC voltage with adjustable phase opposite to that of two ends of an AC input at 2 AC output ends (3 and 4) after being filtered by a high-frequency electric interference L and a variable frequency capacitor C. Therefore, the three-switch alternating-current chopping control bidirectional voltage regulating circuit is a three-switch alternating-current chopping control bidirectional voltage regulating circuit. It can be widely used as AC voltage-stabilized power supply.

Fig. 2 is a three-switch chopping control voltage regulation high-change compensation ac voltage-stabilized power supply designed by applying the three-switch bidirectional voltage regulation circuit shown in fig. 1, and can be known from fig. 2: it only connects 2 output ends of the bidirectional voltage regulating circuit in figure 1 in series with the non-stabilized AC power supply directly, and feeds back the voltage signals at the two output ends to the control signal to realize AC voltage stabilization. Comparing the circuit diagrams of fig. 1 and fig. 2, it can be known that: the main circuit diagram of the three-switch chopping control voltage regulation high-variation compensation AC stabilized power supply shown in the attached figure 2 is formed only by connecting the AC output end 4 shown in the attached figure 1 with the AC input end 1 and connecting the high-frequency capacitor C with two ends of 2 AC stabilized voltage outputs in parallel.

The 2 full-control switches S1 and S2 used in the invention are composed of 2 diodes and 2 triodes, or 4 diodes and 1 triode. The semi-controlled switch S3 is composed of 2 unidirectional thyristors which are connected in anti-parallel.

The invention has the advantages of simple circuit, less bidirectional switches, low cost and simple control, and has better economic and social benefits after implementation.