阅读说明：本技术 一种新型雷击电路 (Novel lightning stroke circuit ) 是由 黄斌 罗赞兴 于 2021-08-12 设计创作，主要内容包括：本发明公开了一种新型雷击电路,包括典型电路,所述典型电路包括第一回路和第二回路,所述第一回路包括电阻丝F1和压敏电阻VR1,所述第二回路包括X电容CX1、电阻R1、电阻R2和整流桥DB1,所述第一回路中还包括差模工字电感L2,所述电阻丝F1和差模工字电感L2串联在交流输入的火线上,所述压敏电阻VR1并联在交流输入的火线与零线之间,所述第二回路还包括共模电感L1,所述X电容CX1、电阻R1、电阻R2、整流桥DB1和共模电感L1并联在交流输入的火线与零线之间,所述整流桥DB1上并联接有CBB电容C1。本发明的优点在于：不增加器件数量、有效降低成本和空间占用。(The invention discloses a novel lightning stroke circuit which comprises a typical circuit, wherein the typical circuit comprises a first circuit and a second circuit, the first circuit comprises a resistance wire F1 and a piezoresistor VR1, the second circuit comprises an X capacitor CX1, a resistor R1, a resistor R2 and a rectifier bridge DB1, the first circuit further comprises a differential mode I-shaped inductor L2, the resistance wire F1 and the differential mode I-shaped inductor L2 are connected in series with an AC input live wire, the piezoresistor VR1 is connected in parallel between the AC input live wire and a neutral wire, the second circuit further comprises a common mode inductor L1, the X capacitor CX1, the resistor R1, the resistor R2, the rectifier bridge DB1 and the common mode inductor L1 are connected in parallel between the AC input live wire and the neutral wire, and the rectifier bridge DB1 is connected in parallel with a CBB capacitor C1. The invention has the advantages that: the number of devices is not increased, and the cost and the space occupation are effectively reduced.)

1. A novel lightning stroke circuit comprises a typical circuit and is characterized in that: the typical circuit comprises a first loop and a second loop, wherein the first loop comprises a resistance wire F1 and a piezoresistor VR1, the second loop comprises an X capacitor CX1, a resistor R1, a resistor R2 and a rectifier bridge DB1, the first loop further comprises a differential mode I-shaped inductor L2, the resistance wire F1 and the differential mode I-shaped inductor L2 are connected in series on a live wire of an alternating current input, the piezoresistor VR1 is connected in parallel between the live wire and a zero wire of the alternating current input, the second loop further comprises a common mode inductor L1, the X capacitor CX1, the resistor R1, the resistor R2, the rectifier bridge DB1 and the common mode inductor L1 are connected in parallel between the live wire and the zero wire of the alternating current input, and the rectifier bridge DB1 is connected in parallel with a CBB capacitor C1.

2. A novel lightning stroke circuit comprises a typical circuit and is characterized in that: the typical circuit comprises a first loop and a second loop, wherein the first loop comprises a resistance wire F1 and a piezoresistor VR1, the second loop comprises an X capacitor CX1, a resistor R1, a resistor R2 and a rectifier bridge DB1, the first loop further comprises a common-mode inductor L1, the resistance wire F1 is connected in series with a live wire of an alternating current input, the piezoresistor VR1 and the common-mode inductor L1 are connected in parallel between the live wire and a zero wire of the alternating current input, the second loop further comprises a differential mode I-shaped inductor L2, the differential mode I-shaped inductor L2 is connected in parallel with the rectifier bridge DB1, the X capacitor CX1, the resistor R1, the resistor R2 and the rectifier bridge DB1 are connected in parallel between the live wire and the zero wire of the alternating current input, and the differential mode I-shaped inductor L2 is connected with a CBB capacitor C1 and a CBB capacitor C4.

Technical Field

The invention relates to the technical field of lightning stroke circuits, in particular to a novel lightning stroke circuit.

Background

In the existing circuit application, in order to meet the requirement of lightning stroke, a plurality of piezoresistors are often added, so that the cost is increased; meanwhile, the fuse is required to be changed into a resistance fuse, and the resistance fuse has certain defects, so that the resistance fuse is not easy to blow under special abnormity, and the risk of machine burning exists.

Due to rapid technological progress in the current market, people have requirements on function experience, attractiveness and space occupation, have requirements on product miniaturization design, and have become a necessary trend of industry development. In order to meet certain performance requirements, devices are continuously added in the conventional design, which is contrary to the requirements of people.

Disclosure of Invention

The invention aims to solve the technical problem of providing a novel lightning stroke circuit which does not increase the number of devices and effectively reduces the cost and the occupied space.

In order to achieve the purpose, the invention adopts the technical scheme that: the novel lightning stroke circuit comprises a typical circuit, wherein the typical circuit comprises a first circuit and a second circuit, the first circuit comprises a resistance wire F1 and a piezoresistor VR1, the second circuit comprises an X capacitor CX1, a resistor R1, a resistor R2 and a rectifier bridge DB1, the first circuit further comprises a differential mode I-shaped inductor L2, the resistance wire F1 and the differential mode I-shaped inductor L2 are connected in series on a live wire of an alternating current input, the piezoresistor VR1 is connected in parallel between the live wire and a zero wire of the alternating current input, the second circuit further comprises a common mode inductor L1, the X capacitor CX1, the resistor R1, the resistor R2, the rectifier bridge DB1 and the common mode inductor L1 are connected in parallel between the live wire and the zero wire of the alternating current input, and a CBB capacitor C1 is connected in parallel to the rectifier bridge DB 1.

The novel lightning stroke circuit comprises a typical circuit, wherein the typical circuit comprises a first loop and a second loop, the first loop comprises a resistance wire F1 and a voltage dependent resistor VR1, the second loop comprises an X capacitor CX1, a resistor R1, a resistor R2 and a rectifier bridge DB1, the first loop further comprises a common mode inductor L1, the resistance wire F1 is connected in series with a live wire of an alternating current input, the voltage dependent resistor VR1 and the common mode inductor L1 are connected in parallel between the live wire and the neutral wire of the alternating current input, the second loop further comprises a differential mode I-shaped inductor L2, the differential mode I-shaped inductor L2 is connected in parallel with the rectifier bridge DB1, the X capacitor CX1, the resistor R1, the resistor R2 and the rectifier bridge 1 are connected in parallel between the live wire and the neutral wire of the alternating current input, and the differential mode I-shaped inductor L2 is connected with a CBB capacitor C1 and a capacitor C4.

Compared with the prior art, the invention has the advantages that: the novel lightning stroke circuit is characterized in that a differential mode I-shaped inductor L2 or a common mode inductor L1 is placed in a first loop at the foremost end of an alternating current input, partial lightning stroke energy is absorbed through parameters and internal resistance of the differential mode I-shaped inductor L2 or the common mode inductor L1, and a piezoresistor VR1 at the rear end is combined to form a loop, so that the lightning stroke energy is effectively resisted, a lightning stroke device can be reduced, the cost is reduced, the production efficiency is improved, and meanwhile, the occupation of the device on the area of a PCB is improved.

Drawings

FIG. 1 is a circuit diagram of a conventional lightning strike circuit.

Fig. 2 is a circuit diagram of a first embodiment of a novel lightning strike circuit of the invention.

Fig. 3 is a circuit diagram of a second embodiment of a novel lightning strike circuit according to the invention.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Example one

The novel lightning stroke circuit comprises a typical circuit, wherein the typical circuit comprises a first circuit and a second circuit, the first circuit comprises a resistance wire F1 and a piezoresistor VR1, the second circuit comprises an X capacitor CX1, a resistor R1, a resistor R2 and a rectifier bridge DB1, the first circuit further comprises a differential mode I-shaped inductor L2, the resistance wire F1 and the differential mode I-shaped inductor L2 are connected in series on a live wire of an alternating current input, the piezoresistor VR1 is connected in parallel between the live wire and a zero wire of the alternating current input, the second circuit further comprises a common mode inductor L1, the X capacitor CX1, the resistor R1, the resistor R2, the rectifier bridge DB1 and the common mode inductor L1 are connected in parallel between the live wire and the zero wire of the alternating current input, and a CBB capacitor C1 is connected in parallel to the rectifier bridge DB 1.

A differential mode I-shaped inductor L2 is placed in a first loop at the foremost end of an alternating current input, partial lightning stroke energy is absorbed through parameters of the differential mode I-shaped inductor L2 and internal resistance, and a piezoresistor VR1 at the rear end is combined to form a loop, so that the lightning stroke energy is effectively resisted.

Example two

The novel lightning stroke circuit comprises a typical circuit, wherein the typical circuit comprises a first loop and a second loop, the first loop comprises a resistance wire F1 and a voltage dependent resistor VR1, the second loop comprises an X capacitor CX1, a resistor R1, a resistor R2 and a rectifier bridge DB1, the first loop further comprises a common mode inductor L1, the resistance wire F1 is connected in series with a live wire of an alternating current input, the voltage dependent resistor VR1 and the common mode inductor L1 are connected in parallel between the live wire and the neutral wire of the alternating current input, the second loop further comprises a differential mode I-shaped inductor L2, the differential mode I-shaped inductor L2 is connected in parallel with the rectifier bridge DB1, the X capacitor CX1, the resistor R1, the resistor R2 and the rectifier bridge 1 are connected in parallel between the live wire and the neutral wire of the alternating current input, and the differential mode I-shaped inductor L2 is connected with a CBB capacitor C1 and a capacitor C4.

A common-mode inductor L1 is placed in a first loop at the foremost end of an alternating current input, partial lightning stroke energy is absorbed through parameters of the common-mode inductor L1 and internal resistance, and a piezoresistor VR1 at the rear end is combined to form a loop, so that the lightning stroke energy is effectively resisted.

The present invention and its embodiments have been described, without limitation, and the embodiments shown in the drawings are only one embodiment of the present invention and the actual configuration is not limited thereto. In summary, those skilled in the art should appreciate that they can readily use the disclosed conception and specific embodiments as a basis for designing or modifying other structures for carrying out the same purposes of the present invention without departing from the spirit and scope of the invention as defined by the appended claims.