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Live line and zero line identifying/converting circuit for charger

A technology for converting circuits and chargers, which is applied to battery circuit devices, current collectors, circuit devices, etc.

Inactive Publication Date: 2014-03-12
郭振华
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, there are many types of chargers in the prior art, but they all have a common feature, that is, they cannot automatically identify the neutral wire and the live wire at the AC input end. If the live wire is directly connected to the polarity output end of the charger, the battery will It is easy to get an electric shock, absolutely not allowed and unsafe

Method used

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  • Live line and zero line identifying/converting circuit for charger
  • Live line and zero line identifying/converting circuit for charger
  • Live line and zero line identifying/converting circuit for charger

Examples

Experimental program
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Effect test

Embodiment 1

[0020] The charger of this embodiment uses live wire and neutral wire to identify conversion circuit, such as figure 1 , including: the third diode D3, the fourth diode D4, the third optocoupler thyristor IC3, the fourth optocoupler thyristor IC4, the third filter capacitor C3, the fourth filter capacitor C4, the third resistor R3, the fourth resistor R4, mains input and ground wire;

[0021] The charger includes a first bidirectional thyristor T1 and a second bidirectional thyristor T2, and the two bidirectional thyristors are switches or charging isolation circuits of the charger;

[0022] One terminal 1 of the AC input terminal is respectively connected to the anode of the third diode D3, one terminal of the control switch of the fourth optocoupler thyristor IC4, and the second anode of the first bidirectional thyristor T1; the terminal of the third diode D3 The negative pole is respectively connected to the positive pole of the third filter capacitor C3 and the positive p...

Embodiment 2

[0030] The charger in this embodiment uses live wire and neutral wire identification circuit, such as figure 2 shown, including:

[0031] Bridge pile, seventh, eighth, ninth, twelfth, thirteenth, fourteenth, fifteenth resistor R7, R8, R9, R12, R13, R14, R15, tenth, eleventh photoresistor R10 . Neon tube H2, normally open switch K0, fifth capacitor C5; wherein, the sixth LED light-emitting diode D6, the tenth photoresistor R10 and the first neon tube H1 are arranged together, the seventh LED light-emitting diode D7, the eleventh photoresistor R11 is set together with the second neon tube H2;

[0032] The charger includes a third triac T3 and a second triac T2;

[0033] One terminal 1 of the AC input terminal is respectively connected with one terminal of the seventh resistor R7, one terminal of the ninth resistor R9, one terminal of the fifth capacitor C5, one terminal of the control switch of the sixth optocoupler thyristor IC6, and one terminal of the third bidirectional ...

Embodiment 3

[0037] The charger in this embodiment uses live wire and neutral wire identification circuit, such as image 3 , including: first relay J1, second relay J2, first diode D1, second diode D2, first optocoupler thyristor IC1, second optocoupler thyristor IC2, first filter capacitor C1 , the second filter capacitor C2, the first resistor R1, the second resistor R2; mains input and ground wire;

[0038] The third switch K2-1, the first switch K1-1, the second switch K1-2, and the fourth switch K2-2; wherein, the first relay J1 controls the switching of the first switch K1-1 and the second switch K1-2 off, the second relay J2 controls the on-off of the third switch K2-1 and the fourth switch K2-2;

[0039] One end 1 of the AC input end is respectively connected with the anode of the first diode D1, one end of the coil of the first relay J1, one end of the control switch of the second optocoupler thyristor IC2, one end of the third switch K2-1, the second switch One end of K1-2 is ...

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Abstract

The invention discloses a live line and zero line identifying / converting circuit for a charger. The circuit comprises a third diode, a fourth diode, a third optical coupling silicon controlled rectifier, a fourth optical coupling silicon controlled rectifier, a third filtering capacitor, a fourth filtering capacitor, a third resistor and a fourth resistor, wherein the charger comprises a first bidirectional silicon controlled rectifier and a second bidirectional silicon controlled rectifier, when the ac input ends (1, 2) are connected with the commercial power input, one of the optical coupling silicon controlled rectifiers works to enable that the bidirectional silicon control rectifier connected with the zero line is short-circuited, so that the zero line is directly connected with the polarity output end, and the live line has the charging, converting and isolating functions via the other bidirectional silicon controlled rectifier. Thus, it is ensured that the live line at the ac input end is not directly connected with the polarity output end of the charger, the safety factor is high, and electric shock does not occur when a storage battery is charged.

Description

technical field [0001] The invention relates to a charger, in particular to a live wire and neutral wire identification conversion circuit for a charger. Background technique [0002] At present, there are many types of chargers in the prior art, but they all have a common feature, that is, they cannot automatically identify the neutral wire and live wire at the AC input end. It is easy to get an electric shock, absolutely not allowed and unsafe. Contents of the invention [0003] The invention provides a live wire and neutral wire identification conversion circuit for a charger, which can automatically identify the neutral wire and the live wire of the AC input end, so that the neutral wire is directly connected to the polarity output end through a switch, and the live wire is charged and isolated by the thyristor, and the charging will not get an electric shock. [0004] Technical scheme of the present invention is: [0005] A live wire and neutral wire identification...

Claims

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Application Information

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IPC IPC(8): H02J7/00
Inventor 郭振华
Owner 郭振华
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