CN102970011A - Load device, power line and reverse connection preventing device - Google Patents
Load device, power line and reverse connection preventing device Download PDFInfo
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- CN102970011A CN102970011A CN2012104535247A CN201210453524A CN102970011A CN 102970011 A CN102970011 A CN 102970011A CN 2012104535247 A CN2012104535247 A CN 2012104535247A CN 201210453524 A CN201210453524 A CN 201210453524A CN 102970011 A CN102970011 A CN 102970011A
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Abstract
The invention discloses a load device, a power line and a reverse connection preventing device. The reverse connection preventing device comprises a first input end, a second input end, a first output end and a second output end; a detection control module is used for detecting that polarities of the first input end and the second input end are positive poles or negative poles; a first switching module is used for communicating the first input end with the first output end when the first input end is a positive pole and the second input end is a negative pole and communicating the first input end with the second output end when the first input end is the negative pole and the second input end is the positive pole; and a second switching module is used for communicating the second input end with the second output end when the first input end is the positive pole and the second input end is the negative pole and communicating the second input end with the first output end when the first input end is the negative pole and the second input end is the positive pole. By means of the technical scheme, positive and negative poles of a direct current supply device can be automatically identified, and the danger during reverse connection of the load device and the direct current supply device is avoided.
Description
Technical field
The present invention relates to electronic circuit field, relate in particular to a kind of load equipment, power line and anti-reverse device.
Background technology
Common mobile unit, large-scale mobile load equipment etc. are the external dc suppling equipment of meeting often, such as Switching Power Supply, and battery etc.If two output reversal connections of dc suppling equipment will cause load equipment to burn out, can't work.Therefore, be necessary dc suppling equipment is carried out the reversal connection protection.The early application fuse carries out the reversal connection protection, comes protection equipment to burn out fuse as cost when reversal connection, so just the problem of continuous replacing fuse occurred, dismantles pretty troublesome.Present anti-reverse device has had very large improvement, equipment can not damage when reversal connection, the power line both positive and negative polarity just can need to be started shooting after the transposing again by hand, but this method of transposing is still pretty troublesome by hand when reversal connection, and, in a lot of devices interconnect than under the complicated situation, if can't start shooting, be confirmed whether it is whether power supply unit by each equipment connects counter causing, also be a relatively burden.
Summary of the invention
The technical problem to be solved in the present invention is, for the above-mentioned defective that needs artificial unloading's fuse when the reversal connection or adjust both positive and negative polarity of prior art, provides a kind of artificial anti-reverse device of adjusting of participating in that need not when reversal connection.
The technical solution adopted for the present invention to solve the technical problems is: construct a kind of anti-reverse device, comprise: the first input end that is connected with dc suppling equipment reaches the second output that is connected with the negative pole of load equipment with first output of being connected input, being connected with the positive pole of load equipment, and described anti-reverse device comprises:
Detecting control module, is negative or positive electrode for detection of the polarity of described first input end, the second input;
The first handover module, it is anodal being used at described first input end, when the second input is negative pole, described first input end is communicated with described the first output; Be negative pole at described first input end, when the second input is positive pole, described first input end be communicated with described the second output;
The second handover module, it is anodal being used at described first input end, when the second input is negative pole, described the second input is communicated with described the second output; Be negative pole at described first input end, when the second input is positive pole, described the second input be communicated with described the first output.
In anti-reverse device of the present invention, described detection control module comprises the first resistance and the second resistance, and the first end of described the first resistance connects described the second input, the first end of described the second resistance connects described first input end, the second end of described the first resistance connects described the first handover module, and the second end of described the second resistance connects described the second handover module.
In anti-reverse device of the present invention, described the first handover module comprises the first switching tube of the first diode and N-type, described the second handover module comprises the second switch pipe of the second diode and N-type, wherein, the positive pole of described the first diode connects described first input end, the negative pole of described the first diode connects described the first output, the first end of described the first switching tube connects described first input end, the second end of described the first switching tube connects described the second output, and the control end of described the first switching tube connects the second end of described the second resistance; The positive pole of described the second diode connects described the second input, the negative pole of described the second diode connects described the first output, the first end of described second switch pipe connects described the second input, the second end of described second switch pipe connects described the second output, and the control end of described second switch pipe connects the second end of described the first resistance.
In anti-reverse device of the present invention, described the first handover module comprises the first switching tube of N-type and the 3rd switching tube of P type, described the second handover module comprises the second switch pipe of N-type and the 4th switching tube of P type, wherein, the first end of described the first switching tube connects described first input end, the second end of described the first switching tube connects described the second output, the first end of described the 3rd switching tube connects described first input end, the second end of described the 3rd switching tube connects described the first output, and the control end of the control end of described the first switching tube and described the 3rd switching tube connects respectively the second end of described the first resistance; The first end of described second switch pipe connects described the second input, the second end of described second switch pipe connects described the second output, the first end of described the 4th switching tube connects described the second input, the second end of described the 4th switching tube connects described the first output, and the control end of the control end of described second switch pipe and described the 4th switching tube connects respectively the second end of described the second resistance.
In anti-reverse device of the present invention, described detection control module comprises the 5th switching tube of the 3rd resistance, the 4th resistance, the 5th resistance, the 6th resistance, P type, the 6th switching tube of P type, wherein, described the 3rd resistance and the 4th resistance string are associated between described first input end and the second input, the control end of described the 5th switching tube connects the tie point of described the 3rd resistance and the 4th resistance, the first end of described the 5th switching tube connects described first input end, and the second end of described the 5th switching tube connects the first handover module; Described the 5th resistance and the 6th resistance string are associated between described first input end and the second input, the control end of described the 6th switching tube connects the tie point of described the 5th resistance and the 6th resistance, the first end of described the 6th switching tube connects described the second input, and the second end of described the 6th switching tube connects described the second handover module.
In anti-reverse device of the present invention, described the first handover module comprises the first relay of double-pole single-throw (D.P.S.T.), described the second handover module comprises the second relay of double-pole single-throw (D.P.S.T.), wherein, the first end of the coil of described the first relay connects described the second input, the second end of the coil of described the first relay connects the second end of the 5th switching tube, the two ends of the first switch of described the first relay connect respectively described first input end and the first output, and the two ends of the second switch of described the first relay connect respectively described the second input and the second output; The first end of the coil of described the second relay connects described first input end, the second end of the coil of described the second relay connects the second end of the 6th switching tube, the two ends of the first switch of described the second relay connect respectively described the second input and the first output, and the two ends of the second switch of described the second relay connect respectively described first input end and the second output.
In anti-reverse device of the present invention, described detection control module also comprises the 7th resistance and the 8th resistance, wherein, described the 7th resistance is connected between the first end of described first input end and described the 5th switching tube, and described the 8th resistance is connected between the first end of described the second input and described the 6th switching tube.
In anti-reverse device of the present invention, described the first handover module also comprises the 9th resistance, described the second handover module also comprises the tenth resistance, wherein, the first end of described the 9th resistance connects described the second input, the second end of described the 9th resistance connects the first end of the coil of described the first relay, and the first end of described the tenth resistance connects described first input end, and the second end of described the tenth resistance connects the first end of the coil of described the second relay.
In anti-reverse device of the present invention, described the first handover module also comprises the 3rd diode, described the second handover module also comprises the 4th diode, wherein, the positive pole of described the 3rd diode connects the first end of the coil of described the first relay, and the negative pole of described the 3rd diode connects the second end of the coil of described the first relay; The positive pole of described the 4th diode connects the first end of the coil of described the second relay, and the negative pole of described the 4th diode connects the second end of the coil of described the second relay.
The present invention also constructs a kind of load equipment, is connected in dc suppling equipment, and described load equipment comprises above-described anti-reverse device.
The present invention also constructs a kind of power line, is connected between dc suppling equipment and the load equipment, and described power line comprises above-described anti-reverse device.
Implement technical scheme of the present invention, when the first input end of this anti-reverse device is connected with the positive pole of dc suppling equipment, when the second input of anti-reverse device is connected with the negative pole of dc suppling equipment, detect control module and just can detect first input end for anodal, the second input is negative pole, the first handover module just can be communicated with first input end with the first output, the second handover module just can be communicated with the second input with the second output, like this, the positive pole of load equipment just is communicated with the positive pole of dc suppling equipment, the negative pole that the negative pole of load equipment is convenient to dc suppling equipment is communicated with, thereby realizes that dc suppling equipment normally is the load equipment power supply.On the contrary, when the first input end of reversal connection circuit is connected with the negative pole of dc suppling equipment, when the second input of reversal connection circuit is connected with the positive pole of dc suppling equipment, it is negative pole that the detection control module just can detect first input end, the second input is anodal, the first handover module just can be communicated with first input end with the second output, the second handover module just can be communicated with the second input with the first output, like this, the positive pole of load equipment just is communicated with the positive pole of dc suppling equipment, the negative pole that the negative pole of load equipment is convenient to dc suppling equipment is communicated with, and can realize that also dc suppling equipment normally is the load equipment power supply.Therefore, when using dc suppling equipment to power as load equipment, this anti-reverse device can be identified the both positive and negative polarity of dc suppling equipment automatically, makes the work of load equipment energy normal boot-strap, and do not need artificial the participation to adjust the danger when having avoided load equipment and dc suppling equipment reversal connection.And, for the InterWorking Equipment (load equipment and dc suppling equipment) of frequent dismounting, avoided the series of problems (for example, can't need to be confirmed whether one by one to be caused by reversal connection during normal boot-strap) that is caused by the dc suppling equipment reversal connection.
Description of drawings
The invention will be further described below in conjunction with drawings and Examples, in the accompanying drawing:
Fig. 1 is the logic diagram of the anti-reverse device embodiment one of the present invention;
Fig. 2 is the circuit diagram of the anti-reverse device embodiment two of the present invention;
Fig. 3 is the circuit diagram of the anti-reverse device embodiment three of the present invention;
Fig. 4 is the circuit diagram of the anti-reverse device embodiment four of the present invention.
Embodiment
Fig. 1 is the logic diagram of the anti-reverse device embodiment one of the present invention, this anti-reverse device is connected between dc suppling equipment and the load equipment, and this anti-reverse device comprises first input end A, the second input B, the first output, the second output, detects control module 10, the first handover module 20 and the second handover module 30, wherein, first input end A, the second input B connect respectively two outputs of dc suppling equipment, the first output connects the positive pole of load equipment, and the second output connects the negative pole of load equipment.And detection control module 10 is negative or positive electrode for detection of the polarity of first input end A, the second input B; The first handover module 20 is used for being positive pole, when the second input B is negative pole, first input end A being communicated with the first output at first input end A; Be negative pole at first input end A, when the second input B is positive pole, first input end A be communicated with the second output; The second handover module 30 is used for being positive pole, when the second input B is negative pole, the second input B being communicated with the second output at first input end A; For being negative pole at first input end A, when the second input B is positive pole, the second input B being communicated with the first output.Implement this technical scheme, when the first input end A of this anti-reverse device is connected with the positive pole of dc suppling equipment, when the second input B of anti-reverse device is connected with the negative pole of dc suppling equipment, detect control module 10 and just can detect first input end A for anodal, the second input B is negative pole, the first handover module 20 just can be communicated with first input end A with the first output, the second handover module 30 just can be communicated with the second input B with the second output, like this, the positive pole of load equipment just is communicated with the positive pole of dc suppling equipment, the negative pole that the negative pole of load equipment is convenient to dc suppling equipment is communicated with, thereby realizes that dc suppling equipment normally is the load equipment power supply.On the contrary, when the first input end A of reversal connection circuit is connected with the negative pole of dc suppling equipment, when the second input B of reversal connection circuit is connected with the positive pole of dc suppling equipment, it is negative pole that detection control module 10 just can detect first input end A, the second input B is anodal, the first handover module 20 just can be communicated with first input end A with the second output, the second handover module 30 just can be communicated with the second input B with the first output, like this, the positive pole of load equipment just is communicated with the positive pole of dc suppling equipment, the negative pole that the negative pole of load equipment is convenient to dc suppling equipment is communicated with, and can realize that also dc suppling equipment normally is the load equipment power supply.Therefore, when using dc suppling equipment to power as load equipment, can automatically identify the both positive and negative polarity of dc suppling equipment, make the work of load equipment energy normal boot-strap, and do not need artificial the participation to adjust the danger when having avoided load equipment and dc suppling equipment reversal connection.And, for the InterWorking Equipment (load equipment and dc suppling equipment) of frequent dismounting, avoided the series of problems (for example, can't be confirmed whether one by one to be caused by reversal connection during normal boot-strap) that is caused by the dc suppling equipment reversal connection.
Fig. 2 is the circuit diagram of the anti-reverse device embodiment two of the present invention, wherein, detects the first resistance R 1 and the second resistance R 2 that control module comprises; The first handover module comprises the first metal-oxide-semiconductor Q1 of the first diode D1 and N raceway groove; The second handover module comprises the second metal-oxide-semiconductor Q2 of the second diode D2 and N raceway groove.And the first end of the first resistance R 1 connects the second input B, and the first end of the second resistance R 2 connects first input end A, and the second end of the first resistance R 1 connects the grid of the first metal-oxide-semiconductor Q1, and the second end of the second resistance R 2 connects the grid of the second metal-oxide-semiconductor Q2.The positive pole of the first diode D1 connects first input end A, and the negative pole of the first diode D1 connects the first output.The drain electrode of the first metal-oxide-semiconductor Q1 connects first input end A, and the source electrode of the first metal-oxide-semiconductor Q1 connects the second output.The positive pole of the second diode D2 connects the second input B, and the negative pole of the second diode D2 connects the first output.The drain electrode of the second metal-oxide-semiconductor Q2 connects the second input B, and the source electrode of the second metal-oxide-semiconductor Q2 connects the second output.
The following describes the operation principle of the anti-reverse device of this embodiment: the positive pole that connects dc suppling equipment as the first input end A of this anti-reverse device, when the second input B of this anti-reverse device connects the negative pole of dc suppling equipment, the second metal-oxide-semiconductor Q2 conducting, the first metal-oxide-semiconductor Q1 cut-off, then first input end A is communicated with the first output by the first diode D1, the second input B is communicated with the second output by the second metal-oxide-semiconductor Q2, like this, the positive pole of load equipment just is communicated with the positive pole of dc suppling equipment, and the negative pole of load equipment just is communicated with the negative pole of dc suppling equipment.On the contrary, connect the negative pole of dc suppling equipment as the first input end A of this anti-reverse device, when the second input B of this anti-reverse device connects dc suppling equipment anodal, the first metal-oxide-semiconductor Q1 conducting, the second metal-oxide-semiconductor Q2 cut-off, then the second input B is communicated with the first output by the second diode D2, first input end A is communicated with the second output by the first metal-oxide-semiconductor Q1, like this, the positive pole of load equipment just is communicated with the positive pole of dc suppling equipment, and the negative pole of load equipment just is communicated with the negative pole of dc suppling equipment.Therefore, no matter how the both positive and negative polarity of first input end A, the second input B and dc suppling equipment connects, can realize that all dc suppling equipment normally is the load equipment power supply, and not need artificial the participation to adjust.
Fig. 3 is the circuit diagram of the anti-reverse device embodiment three of the present invention, this embodiment compares with embodiment shown in Figure 2, difference only is that the 3rd metal-oxide-semiconductor Q3 with the P raceway groove substitutes the first diode D1, the 4th metal-oxide-semiconductor Q4 with the P raceway groove substitutes the second diode D2, and, the grid of the 3rd metal-oxide-semiconductor Q3 connects the second end of the first resistance R 1, and the source electrode of the 3rd metal-oxide-semiconductor Q3 connects first input end A, and the drain electrode of the 3rd metal-oxide-semiconductor Q3 connects the first output; The grid of the 4th metal-oxide-semiconductor Q4 connects the second end of the second resistance R 2, and the source electrode of the 4th metal-oxide-semiconductor Q4 connects the second input B, and the drain electrode of the 4th metal-oxide-semiconductor Q4 connects the first output.
The operation principle of the operation principle of the anti-reverse device of this embodiment and embodiment shown in Figure 2 is similar, difference only is, connect the positive pole of dc suppling equipment as the first input end A of this anti-reverse device, when the second input B of this anti-reverse device connects the negative pole of dc suppling equipment, the 3rd metal-oxide-semiconductor Q3 and the second metal-oxide-semiconductor Q2 conducting, the first metal-oxide-semiconductor Q1 and the 4th metal-oxide-semiconductor Q4 cut-off, at this moment, first input end A is communicated with the first output by the 3rd metal-oxide-semiconductor Q3, and the second input B is communicated with the second output by the second metal-oxide-semiconductor Q2.On the contrary, connect the negative pole of dc suppling equipment as the first input end A of this anti-reverse device, when the second input B of this anti-reverse device connects dc suppling equipment anodal, the first metal-oxide-semiconductor Q1 and the 4th metal-oxide-semiconductor Q4 conducting, the second metal-oxide-semiconductor Q2 and the 3rd metal-oxide-semiconductor Q3 cut-off, then the second input B is communicated with the first output by the 4th metal-oxide-semiconductor Q4, and first input end A is communicated with the second output by the first metal-oxide-semiconductor Q1.
It should be noted that, more than be specific embodiments of the invention, the protection range that is not intended to limit the present invention, in other embodiments, the metal-oxide-semiconductor of N raceway groove (for example, the first metal-oxide-semiconductor Q1, the second metal-oxide-semiconductor Q2) also can be selected the switching tube of other N-type, for example NPN triode; P channel MOS tube (for example, the 3rd metal-oxide-semiconductor Q3, the 4th metal-oxide-semiconductor Q4) also can be selected the switching tube of other P type, for example PNP triode.
Fig. 4 is the circuit diagram of the anti-reverse device embodiment four of the present invention, detects control module and comprises the 3rd resistance R 3, the 4th resistance R 4, the 5th resistance R 5, the 6th resistance R 6, the 7th resistance R 7, the 8th resistance R 8, PNP triode Q5, PNP triode Q6.The first handover module comprises the first relay K 1, the 9th resistance R 9 and the 3rd diode D3 of double-pole single-throw (D.P.S.T.).The second handover module comprises the second relay K 2, the tenth resistance R 10 and the 4th diode D4 of double-pole single-throw (D.P.S.T.).Wherein, the 3rd resistance R 3 and the 4th resistance R 4 are connected between first input end A and the second input B, the base stage of triode Q5 connects the tie point of the 3rd resistance R 3 and the 4th resistance R 4, the emitter of triode Q5 connects first input end A by the 7th resistance R 7, the collector electrode of triode Q5 connects second end of coil of the first relay K 1 and the negative pole of the 3rd diode D3, the positive pole of the first end of the coil of the first relay K 1 and the 3rd diode D3 connects the second input B by the 9th resistance R 9 in the lump, the two ends of the first switch of the first relay K 1 connect respectively first input end A and the first output, and the two ends of the second switch of the first relay K 1 connect respectively the second input B and the second output.The 5th resistance R 5 and the 6th resistance R 6 are connected between first input end A and the second input B, the base stage of triode Q6 connects the tie point of the 5th resistance R 5 and the 6th resistance R 6, the emitter of triode Q6 connects the second input B by the 8th resistance R 8, the collector electrode of triode Q6 connects second end of coil of the second relay K 2 and the negative pole of the 4th diode D4, the positive pole of the first end of the coil of the second relay K 2 and the 4th diode D4 connects first input end A by the tenth resistance R 10 in the lump, the two ends of the first switch of the second relay K 2 connect respectively the second input B and the first output, and the two ends of the second switch of the second relay K 2 connect respectively first input end A and the second output.
The following describes the operation principle of the anti-reverse device of this embodiment: the positive pole that connects dc suppling equipment as the first input end A of this anti-reverse device, when the second input B of this anti-reverse device connects the negative pole of dc suppling equipment, triode Q5 conducting, triode Q6 cut-off, the coil of the first relay K 1 powers on, the double-pole single throw of the first relay K 1 is closed, at this moment, first input end A is communicated with the positive pole of load equipment, the second input B is communicated with the negative pole of load equipment, also be, the positive pole of dc suppling equipment is communicated with the positive pole of load equipment, the negative pole of dc suppling equipment is communicated with the negative pole of load equipment, thereby realizes that dc suppling equipment normally is the load equipment power supply.On the contrary, connect the negative pole of dc suppling equipment as the first input end A of this anti-reverse device, when the second input B of this anti-reverse device connects dc suppling equipment anodal, triode Q6 conducting, triode Q5 cut-off, the coil of the second relay K 2 powers on, the double-pole single throw of the second relay K 2 is closed, at this moment, first input end A is communicated with the negative pole of load equipment, and the second input B is communicated with the positive pole of load equipment, also be, the positive pole of dc suppling equipment is communicated with the positive pole of load equipment, and the negative pole of dc suppling equipment is communicated with the negative pole of load equipment, can realize that also dc suppling equipment normally is the load equipment power supply.
In this embodiment, should be noted that also the 3rd diode D3, the 4th diode D4 play afterflow, can save in other embodiments; The 7th resistance R 7, the 8th resistance R 8, the 9th resistance R 9,10 metering functions of the tenth resistance R also can be saved in other embodiments; The relay of double-pole single-throw (D.P.S.T.), for example relay K 1, K2 also can select the relay of dpdt double-pole double-throw (DPDT).In addition, the triode of positive-negative-positive (for example, triode Q5, triode Q6) can substitute with other P type switching tube, for example the metal-oxide-semiconductor of P raceway groove.Certainly, in other embodiments, the switching tube in the detection control module also can be selected the switching tube of N-type, only the circuit in the first handover module and the second handover module need be adjusted accordingly to get final product, and this is also in protection scope of the present invention.
The present invention also constructs a kind of load equipment, and this load equipment is connected with dc suppling equipment, and this load equipment comprises the described anti-reverse device of above arbitrary embodiment.
The present invention also constructs a kind of power line, is connected between dc suppling equipment and the load equipment, and described power line comprises the described anti-reverse device of above arbitrary embodiment.
The above is the preferred embodiments of the present invention only, is not limited to the present invention, and for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any modification of doing, be equal to replacement, improvement etc., all should be included within the claim scope of the present invention.
Claims (11)
1. anti-reverse device, be connected with load equipment with dc suppling equipment, described anti-reverse device comprises: the first input end that is connected with dc suppling equipment reaches the second output that is connected with the negative pole of load equipment with first output of being connected input, being connected with the positive pole of load equipment, it is characterized in that described anti-reverse device comprises:
Detecting control module, is negative or positive electrode for detection of the polarity of described first input end, the second input;
The first handover module, it is anodal being used at described first input end, when the second input is negative pole, described first input end is communicated with described the first output; Be negative pole at described first input end, when the second input is positive pole, described first input end be communicated with described the second output;
The second handover module, it is anodal being used at described first input end, when the second input is negative pole, described the second input is communicated with described the second output; Be negative pole at described first input end, when the second input is positive pole, described the second input be communicated with described the first output.
2. anti-reverse device according to claim 1, it is characterized in that, described detection control module comprises the first resistance and the second resistance, and the first end of described the first resistance connects described the second input, the first end of described the second resistance connects described first input end, the second end of described the first resistance connects described the first handover module, and the second end of described the second resistance connects described the second handover module.
3. anti-reverse device according to claim 2, it is characterized in that, described the first handover module comprises the first switching tube of the first diode and N-type, described the second handover module comprises the second switch pipe of the second diode and N-type, wherein, the positive pole of described the first diode connects described first input end, the negative pole of described the first diode connects described the first output, the first end of described the first switching tube connects described first input end, the second end of described the first switching tube connects described the second output, and the control end of described the first switching tube connects the second end of described the second resistance; The positive pole of described the second diode connects described the second input, the negative pole of described the second diode connects described the first output, the first end of described second switch pipe connects described the second input, the second end of described second switch pipe connects described the second output, and the control end of described second switch pipe connects the second end of described the first resistance.
4. anti-reverse device according to claim 2, it is characterized in that, described the first handover module comprises the first switching tube of N-type and the 3rd switching tube of P type, described the second handover module comprises the second switch pipe of N-type and the 4th switching tube of P type, wherein, the first end of described the first switching tube connects described first input end, the second end of described the first switching tube connects described the second output, the first end of described the 3rd switching tube connects described first input end, the second end of described the 3rd switching tube connects described the first output, and the control end of the control end of described the first switching tube and described the 3rd switching tube connects respectively the second end of described the first resistance; The first end of described second switch pipe connects described the second input, the second end of described second switch pipe connects described the second output, the first end of described the 4th switching tube connects described the second input, the second end of described the 4th switching tube connects described the first output, and the control end of the control end of described second switch pipe and described the 4th switching tube connects respectively the second end of described the second resistance.
5. anti-reverse device according to claim 1, it is characterized in that, described detection control module comprises the 5th switching tube of the 3rd resistance, the 4th resistance, the 5th resistance, the 6th resistance, P type, the 6th switching tube of P type, wherein, described the 3rd resistance and the 4th resistance string are associated between described first input end and the second input, the control end of described the 5th switching tube connects the tie point of described the 3rd resistance and the 4th resistance, the first end of described the 5th switching tube connects described first input end, and the second end of described the 5th switching tube connects the first handover module; Described the 5th resistance and the 6th resistance string are associated between described first input end and the second input, the control end of described the 6th switching tube connects the tie point of described the 5th resistance and the 6th resistance, the first end of described the 6th switching tube connects described the second input, and the second end of described the 6th switching tube connects described the second handover module.
6. anti-reverse device according to claim 5, it is characterized in that, described the first handover module comprises the first relay of double-pole single-throw (D.P.S.T.), described the second handover module comprises the second relay of double-pole single-throw (D.P.S.T.), wherein, the first end of the coil of described the first relay connects described the second input, the second end of the coil of described the first relay connects the second end of the 5th switching tube, the two ends of the first switch of described the first relay connect respectively described first input end and the first output, and the two ends of the second switch of described the first relay connect respectively described the second input and the second output; The first end of the coil of described the second relay connects described first input end, the second end of the coil of described the second relay connects the second end of the 6th switching tube, the two ends of the first switch of described the second relay connect respectively described the second input and the first output, and the two ends of the second switch of described the second relay connect respectively described first input end and the second output.
7. anti-reverse device according to claim 5, it is characterized in that, described detection control module also comprises the 7th resistance and the 8th resistance, wherein, described the 7th resistance is connected between the first end of described first input end and described the 5th switching tube, and described the 8th resistance is connected between the first end of described the second input and described the 6th switching tube.
8. anti-reverse device according to claim 6, it is characterized in that, described the first handover module also comprises the 9th resistance, described the second handover module also comprises the tenth resistance, wherein, the first end of described the 9th resistance connects described the second input, and the second end of described the 9th resistance connects the first end of the coil of described the first relay, the first end of described the tenth resistance connects described first input end, and the second end of described the tenth resistance connects the first end of the coil of described the second relay.
9. anti-reverse device according to claim 8, it is characterized in that, described the first handover module also comprises the 3rd diode, described the second handover module also comprises the 4th diode, wherein, the positive pole of described the 3rd diode connects the first end of the coil of described the first relay, and the negative pole of described the 3rd diode connects the second end of the coil of described the first relay; The positive pole of described the 4th diode connects the first end of the coil of described the second relay, and the negative pole of described the 4th diode connects the second end of the coil of described the second relay.
10. a load equipment is connected in dc suppling equipment, it is characterized in that, described load equipment comprises the described anti-reverse device of claim 1-9.
11. a power line is connected between dc suppling equipment and the load equipment, it is characterized in that, described power line comprises the described anti-reverse device of claim 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012104535247A CN102970011A (en) | 2012-11-13 | 2012-11-13 | Load device, power line and reverse connection preventing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012104535247A CN102970011A (en) | 2012-11-13 | 2012-11-13 | Load device, power line and reverse connection preventing device |
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| CN102970011A true CN102970011A (en) | 2013-03-13 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2012104535247A Pending CN102970011A (en) | 2012-11-13 | 2012-11-13 | Load device, power line and reverse connection preventing device |
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| CN105634336A (en) * | 2014-12-01 | 2016-06-01 | 协禧电机股份有限公司 | Control circuit |
| CN105954604A (en) * | 2016-04-15 | 2016-09-21 | 广州飞机维修工程有限公司 | Electric control unit device capable of supplying adjustable positive and negative DC current |
| WO2018040381A1 (en) * | 2016-08-31 | 2018-03-08 | 广东百事泰电子商务股份有限公司 | Reversible plugging-recognizing power supply device and smart charging device |
| CN107947144A (en) * | 2016-10-12 | 2018-04-20 | 瑞柯科技股份有限公司 | Vehicle electric appliance device with protection and detection mechanism for reverse connection of power supply |
| WO2018076294A1 (en) * | 2016-10-28 | 2018-05-03 | 海能达通信股份有限公司 | Reverse connection and current backflow prevention circuit |
| CN113933737A (en) * | 2020-07-09 | 2022-01-14 | 中车兰州机车有限公司 | Train power supply test device |
| CN115425442A (en) * | 2022-08-22 | 2022-12-02 | 惠州市安规电子有限公司 | Power adapter capable of matching output |
| CN117792141A (en) * | 2024-02-24 | 2024-03-29 | 厦门理工学院 | High-speed pulse circuit for capacitive and inductive loads |
| CN117792141B (en) * | 2024-02-24 | 2024-04-26 | 厦门理工学院 | High-speed pulse circuit for capacitive and inductive loads |
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| CN113933737A (en) * | 2020-07-09 | 2022-01-14 | 中车兰州机车有限公司 | Train power supply test device |
| CN115425442A (en) * | 2022-08-22 | 2022-12-02 | 惠州市安规电子有限公司 | Power adapter capable of matching output |
| CN115425442B (en) * | 2022-08-22 | 2023-06-13 | 惠州市安规电子有限公司 | Power adapter capable of matching output |
| CN117792141A (en) * | 2024-02-24 | 2024-03-29 | 厦门理工学院 | High-speed pulse circuit for capacitive and inductive loads |
| CN117792141B (en) * | 2024-02-24 | 2024-04-26 | 厦门理工学院 | High-speed pulse circuit for capacitive and inductive loads |
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Application publication date: 20130313 |