CN117607710B - New energy battery performance detection circuit - Google Patents
New energy battery performance detection circuit Download PDFInfo
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- CN117607710B CN117607710B CN202410094614.4A CN202410094614A CN117607710B CN 117607710 B CN117607710 B CN 117607710B CN 202410094614 A CN202410094614 A CN 202410094614A CN 117607710 B CN117607710 B CN 117607710B
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- 238000001514 detection method Methods 0.000 title claims abstract description 54
- 238000007599 discharging Methods 0.000 claims abstract description 38
- 239000003990 capacitor Substances 0.000 claims description 47
- 238000012797 qualification Methods 0.000 claims description 27
- 238000005286 illumination Methods 0.000 claims description 3
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 230000003111 delayed effect Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/36—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
- G01R31/385—Arrangements for measuring battery or accumulator variables
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/005—Testing of electric installations on transport means
- G01R31/006—Testing of electric installations on transport means on road vehicles, e.g. automobiles or trucks
Abstract
The invention discloses a new energy battery performance detection circuit, which relates to the field of battery performance detection, and comprises: the battery discharging module is used for providing a discharging loop for the new energy battery, adjusting the impedance of the discharging loop through a control signal, wherein the control signal is a PWM signal; the battery discharge detection module is used for detecting the voltage of the new energy battery and controlling whether the luminous tubes emit light according to the change of the voltage, wherein the voltage change sets change time, a plurality of change time are arranged, and the number of the luminous tubes corresponds to the number of the change time; compared with the prior art, the invention has the beneficial effects that: according to the invention, the discharge condition of the new energy battery is detected by designing the battery discharge detection module, designing the detection result feedback module, and automatically judging whether the voltage drop of the new energy battery is reasonable or not according to different discharge currents of the new energy battery, wherein when the voltage drop of the new energy battery is normal, the new energy battery can be prompted to pass the discharge performance detection by voice.
Description
Technical Field
The invention relates to the field of battery performance detection, in particular to a new energy battery performance detection circuit.
Background
The new energy battery is widely applied to various fields of daily life, including household appliances, automobile batteries, electronic products and military equipment batteries. Along with the development of modernization, new energy batteries are widely applied to electronic products and new energy automobiles, and particularly applied to the new energy automobile industry.
In the existing new energy battery discharge performance detection process, a detector is required to observe the voltage change of the battery to judge whether the new energy battery is qualified or not, and the new energy battery discharge detection process is complicated and needs to be improved.
Disclosure of Invention
The invention aims to provide a new energy battery performance detection circuit to solve the problems in the background technology.
In order to achieve the above purpose, the present invention provides the following technical solutions:
a new energy battery performance detection circuit, comprising:
the battery discharging module is used for providing a discharging loop for the new energy battery, adjusting the impedance of the discharging loop through a control signal, wherein the control signal is a PWM signal;
the battery discharge detection module is used for detecting the voltage of the new energy battery and controlling whether the luminous tubes emit light according to the change of the voltage, wherein the voltage change sets change time, a plurality of change time are arranged, and the number of the luminous tubes corresponds to the number of the change time;
the detection result feedback module is used for judging whether the discharge performance of the new energy battery is qualified according to the impedance of the battery discharge module and the luminous number of luminous tubes of the battery discharge detection module, and prompting by voice if the discharge performance of the new energy battery is qualified;
the input end of the battery discharging module is connected with the positive electrode of the new energy battery and the input end of the battery discharging detection module, the negative electrode of the new energy battery is grounded, the output end of the battery discharging module is connected with the first input end of the detection result feedback module, and the output end of the battery discharging detection module is connected with the second input end of the detection result feedback module.
As still further aspects of the invention: the battery discharging module comprises a first power tube, a second power tube, a third power tube, a fourth power tube, a voltmeter, an ammeter, a first resistor, a second resistor and a third resistor, wherein the D electrode of the fourth power tube is connected with the positive electrode of the new energy battery, the G electrode of the fourth power tube is connected with a fourth control signal, the S electrode of the fourth power tube is connected with one end of the ammeter, the other end of the ammeter is connected with the D electrode of the first power tube, the D electrode of the second power tube, the D electrode of the third power tube and one end of the voltmeter, the other end of the voltmeter is grounded, the S electrode of the first power tube is grounded through the first resistor, the G electrode of the first power tube is connected with a first control signal, the S electrode of the second power tube is grounded through the second resistor, the G electrode of the second power tube is connected with a second control signal, the S electrode of the third power tube is grounded through the third resistor, and the G electrode of the third power tube is connected with a third control signal.
As still further aspects of the invention: the battery discharge detection module comprises a fourth resistor, a first diode, a second diode, a sixth diode, a seventh diode, an eighth diode and a delay processing unit, wherein one end of the fourth resistor is connected with the positive electrode of the new energy battery, the other end of the fourth resistor is connected with the positive electrode of the first diode, the negative electrode of the first diode is connected with the positive electrode of the second diode, the first end of the delay processing unit is connected with the positive electrode of the sixth diode, the third end of the delay processing unit is connected with the positive electrode of the seventh diode, the fourth end of the delay processing unit is connected with the positive electrode of the eighth diode, and the negative electrode of the second diode is connected with the negative electrode of the sixth diode, the negative electrode of the seventh diode and the negative electrode of the eighth diode.
As still further aspects of the invention: the delay processing unit comprises a first inductor, a second inductor, a third inductor, a first capacitor, a second capacitor, a third diode, a fourth diode, a fifth diode, a tenth resistor, an eleventh resistor and a twelfth resistor, wherein one end of a first power supply is connected with one end of the second inductor, one end of the third inductor and the cathode of the first diode, the other end of the first inductor is connected with one end of the first capacitor and the anode of the third diode, the other end of the first capacitor is grounded, the cathode of the third diode is connected with the anode of the sixth diode through the tenth resistor, the other end of the second inductor is connected with one end of the second capacitor and the anode of the fourth diode, the other end of the second capacitor is grounded, the cathode of the fourth diode is connected with the anode of the seventh diode through the eleventh resistor, the other end of the third inductor is connected with one end of the third capacitor and the anode of the fifth diode, the other end of the third capacitor is grounded, and the cathode of the fifth diode is connected with the anode of the eighth diode through the twelfth resistor.
As still further aspects of the invention: the detection result feedback module comprises:
the impedance change feedback unit is used for changing the voltage output to the qualification judging unit according to the control signal;
the luminous feedback unit of the luminotron, is used for changing the voltage magnitude that is outputted to the qualification judging unit according to the luminous number of luminotron;
the qualification judging unit is used for judging whether the discharge performance of the new energy battery is qualified or not according to the output voltage of the impedance change feedback unit and the output voltage of the luminous feedback unit of the luminous tube;
the output end of the impedance change feedback unit is connected with the first input end of the qualification judging unit, and the output end of the luminous tube luminous feedback unit is connected with the second input end of the qualification judging unit.
As still further aspects of the invention: the impedance change feedback unit comprises a fifth resistor, a fifth power tube, a ninth power tube, a tenth power tube, a seventh resistor, a first potentiometer and a fourth capacitor, wherein one end of the fifth resistor is connected with a power supply voltage, the other end of the fifth resistor is connected with a D pole of the fifth power tube, a D pole of the ninth power tube and a D pole of the tenth power tube, a G pole of the fifth power tube is connected with a first control signal, a G pole of the ninth power tube is connected with a second control signal, a G pole of the tenth power tube is connected with a third control signal, an S pole of the fifth power tube is connected with an S pole of the ninth power tube, an S pole of the tenth power tube and one end of the seventh resistor, the other end of the seventh resistor is connected with one end of the fourth capacitor, one end of the first potentiometer and a first input end of the qualification judging unit, the other end of the first potentiometer is grounded, and the other end of the fourth capacitor is grounded.
As still further aspects of the invention: the luminous feedback unit of the luminotron comprises a sixth resistor, a sixth triode, a seventh triode, an eighth resistor, a fifth capacitor and a second potentiometer, wherein one end of the sixth resistor is connected with a power supply voltage, the other end of the sixth resistor is connected with a collector of the sixth triode, a collector of the seventh triode and a collector of the eighth triode, an emitter of the sixth triode is connected with an emitter of the seventh triode, an emitter of the eighth triode and one end of the eighth resistor, the other end of the eighth resistor is connected with one end of the fifth capacitor, one end of the second potentiometer and a second input end of the qualification judging unit, the other end of the fifth capacitor is grounded, the other ends of the second potentiometer are grounded, and bases of the sixth triode, the seventh triode and the eighth triode respectively receive illumination of different luminotrons.
As still further aspects of the invention: the qualification judging unit comprises a first amplifier, a ninth resistor and a voice chip, wherein the in-phase end of the first amplifier is connected with the output end of the impedance change feedback unit, the inverting end of the first amplifier is connected with the output end of the luminous feedback unit of the luminous tube, the output end of the first amplifier is connected with one end of the ninth resistor, the other end of the ninth resistor is connected with one end of the voice chip, and the other end of the voice chip is grounded.
Compared with the prior art, the invention has the beneficial effects that: according to the invention, the discharge condition of the new energy battery is detected by designing the battery discharge detection module, designing the detection result feedback module, and automatically judging whether the voltage drop of the new energy battery is reasonable or not according to different discharge currents of the new energy battery, wherein when the voltage drop of the new energy battery is normal, the new energy battery can be prompted to pass the discharge performance detection by voice.
Drawings
Fig. 1 is a schematic diagram of a new energy battery performance detection circuit.
Fig. 2 is a circuit diagram of a battery discharge module and a battery discharge detection module.
Fig. 3 is a circuit diagram of a delay processing unit.
Fig. 4 is a circuit diagram of the detection result feedback module.
Detailed Description
The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are only some embodiments of the present invention, but not all embodiments, and all other embodiments obtained by those skilled in the art without making creative efforts based on the embodiments of the present invention are included in the protection scope of the present invention.
Referring to fig. 1, a new energy battery performance detection circuit includes:
the battery discharging module 1 is used for providing a discharging loop for the new energy battery E1, adjusting the impedance of the discharging loop through a control signal, wherein the control signal is a PWM signal;
the battery discharge detection module 2 is used for detecting the voltage of the new energy battery E1 and controlling whether the luminous tubes emit light according to the change of the voltage, wherein the voltage change sets change time, a plurality of change time are arranged, and the number of the luminous tubes corresponds to the number of the change time;
the detection result feedback module 3 is used for judging whether the discharge performance of the new energy battery E1 is qualified according to the impedance of the battery discharge module 1 and the luminous quantity of luminous tubes of the battery discharge detection module 2, and prompting by voice if the discharge performance of the new energy battery E1 is qualified;
the input end of the battery discharging module 1 is connected with the positive electrode of the new energy battery E1 and the input end of the battery discharging detection module 2, the negative electrode of the new energy battery E1 is grounded, the output end of the battery discharging module 1 is connected with the first input end of the detection result feedback module 3, and the output end of the battery discharging detection module 2 is connected with the second input end of the detection result feedback module 3.
In this embodiment: referring to fig. 2, the battery discharging module 1 includes a first power tube V1 (NMOS), a second power tube V2 (NMOS), a third power tube V3 (NMOS), a fourth power tube V4 (NMOS), a voltmeter V, a voltmeter a, a first resistor R1, a second resistor R2, and a third resistor R3, the D pole of the fourth power tube V4 is connected to the positive pole of the new energy battery E1, the G pole of the fourth power tube V4 is connected to the fourth control signal PWM4, the S pole of the fourth power tube V4 is connected to one end of the voltmeter a, the other end of the voltmeter a is connected to the D pole of the first power tube V1, the D pole of the second power tube V2, the D pole of the third power tube V3, one end of the voltmeter V, the other end of the voltmeter V is grounded, the S pole of the first power tube V1 is grounded through the first resistor R1, the S pole of the second power tube V2 is grounded through the second resistor R2, the G pole of the second power tube V2 is connected to the third power tube V3, and the third power tube V3 is grounded through the third power tube 3.
The first control signal PWM1, the second control signal PWM2, the third control signal PWM3 and the fourth control signal PWM4 are PWM signals which are respectively output by different interfaces, PWM signals can be obtained through related equipment such as a waveform generator or a singlechip, and the four interfaces are set for output and respectively correspond to the first control signal PWM1, the second control signal PWM2, the third control signal PWM3 and the fourth control signal PWM4. The output voltage of the new energy battery E1 is output to the impedance after passing through the fourth power tube V4, where the total impedance depends on the conduction frequency of the first power tube V1, the second power tube V2 and the third power tube V3, so as to change the current passing through the first resistor R1, the second resistor R2 and the third resistor R3 in unit time, thereby realizing the discharge of the new energy battery E1.
In another embodiment: the ammeter a and the voltmeter V may be omitted, and are provided here for more clearly observing the discharge condition of the new energy battery E1.
In this embodiment: referring to fig. 3, the battery discharge detection module 2 includes a fourth resistor R4, a first diode D1, a second diode D2, a sixth diode D6, a seventh diode D7, an eighth diode D8, and a delay processing unit X, wherein one end of the fourth resistor R4 is connected to the positive electrode of the new energy battery E1, the other end of the fourth resistor R4 is connected to the positive electrode of the first diode D1, the negative electrode of the first diode D1 is connected to the positive electrode of the second diode D2, the first end of the delay processing unit X is connected to the positive electrode of the sixth diode D6, the third end of the delay processing unit X is connected to the positive electrode of the seventh diode D7, the fourth end of the delay processing unit X is connected to the positive electrode of the eighth diode D8, the negative electrode of the second diode D2 is connected to the negative electrode of the sixth diode D6, the negative electrode of the seventh diode D7, and the negative electrode of the eighth diode D8.
The delay processing unit X sets voltage delay output, and is provided with three output interfaces (i.e., a second end, a third end and a fourth end), namely, three delay impedance reduction outputs are divided, for example, the voltage input through the diode D1 is reduced to different degrees, delayed for 5 minutes, then reduced by 0.1V, 0.15V and 0.2V respectively, and then output, and the voltage passing through the diode D2 is real-time voltage. The sixth diode D6, the seventh diode D7, and the eighth diode D8 are light emitting diodes.
Specifically, for example, the discharging function of the new energy battery E1 is normal, after the fourth power tube V4 is turned on and transmits power, the first power tube V1 is turned on, and the second power tube V2 and the third power tube V3 are turned off; at this time, the current flowing through the ammeter a is smaller, the new energy battery E1 discharges slowly, after 5 minutes, the voltage drop of the new energy battery E1 is smaller, at this time, after the voltage is reduced, the voltage difference between the positive electrode and the negative electrode of the sixth diode D6 is larger, which is sufficient to drive the sixth diode D6 to emit light, and the voltage differences between the positive electrode and the negative electrode of the seventh diode D7 and the eighth diode D8 are smaller, so that the light does not emit light.
After the fourth power tube V4 is conducted and transmitted, the first power tube V1, the second power tube V2 and the third power tube V3 are all conducted; at this time, the current flowing through the ammeter a is large, the new energy battery E1 discharges quickly, the voltage of the new energy battery E1 drops greatly after 5 minutes, and the sixth diode D6, the seventh diode D7 and the eighth diode D8 emit light after the voltage is reduced.
Similarly, after the fourth power tube V4 is conducted and transmits power, the first power tube V1 and the second power tube V2 are conducted, and the third power tube V3 is not conducted; after 5 minutes, the sixth diode D6 and the seventh diode D7 emit light, and the eighth diode D8 does not emit light. That is, under the normal discharge condition of the new energy battery E1, the number of light emitting diodes is different based on the magnitude of the discharge current (i.e. the discharge loop impedance).
When the discharging performance of the new energy battery E1 is not qualified and the discharging speed is too high, for example, after the fourth power tube V4 is conducted and transmitted, the first power tube V1 is conducted, and the second power tube V2 and the third power tube V3 are not conducted; at this time, the new energy battery E1 is abnormally discharged, and the discharge amount is large, so that the seventh diode D7 emits light, or both the seventh diode D7 and the eighth diode D8 emit light, in addition to the sixth diode D6. At this time, the impedance of the discharge loop is not matched with the number of the light emitting diodes.
In another embodiment: the number of light emitting diodes can be increased or decreased appropriately.
In this embodiment: referring to fig. 3, the delay processing unit X includes a first inductor L1, a second inductor L2, a third inductor L3, a first capacitor C1, a second capacitor C2, a third capacitor C3, a third diode D3, a fourth diode D4, a fifth diode D5, a tenth resistor R10, an eleventh resistor R11, and a twelfth resistor R12, one end of the first power supply is connected to one end of the second inductor L2, one end of the third inductor L3, a cathode of the first diode D1, the other end of the first inductor L1 is connected to one end of the first capacitor C1, an anode of the third diode D3 is grounded, a cathode of the first capacitor C1 is connected to an anode of the sixth diode D6 through the tenth resistor R10, the other end of the second inductor L2 is connected to one end of the second capacitor C2, an anode of the fourth diode D4 is grounded, the cathode of the fourth diode D4 is connected to the anode of the third diode D5 through the eleventh resistor R11, and the other end of the anode of the third diode D3 is connected to the anode of the eighth diode D8.
Based on the above description, the delay processing unit X is formed by three delay output subunits, which are all of the same circuit structure, and is described by one delay output subunit, when voltage is input, the voltage charges the first capacitor C1 through the first inductor L1, the charging is delayed for 5 minutes, and after the delay, the voltage is subtracted through the third diode D3 and the tenth resistor R10, the voltage is output, and the tenth resistor R10 subtracts the voltage of 0.1V; similarly, the other two delay output subunits are output after the second capacitor C2 is charged and delayed, the eleventh resistor R11 cuts off 0.15V and the third capacitor C3 is charged and delayed, and the twelfth resistor R12 cuts off 0.2V and outputs.
In another embodiment: three identical delay output subunits are arranged, and the delay output subunits can be properly increased or reduced only if specific resistor resistance values are different.
In this embodiment: referring to fig. 4, the detection result feedback module 3 includes:
the impedance change feedback unit is used for changing the voltage output to the qualification judging unit according to the control signal;
the luminous feedback unit of the luminotron, is used for changing the voltage magnitude that is outputted to the qualification judging unit according to the luminous number of luminotron;
the qualification judging unit is used for judging whether the discharge performance of the new energy battery E1 is qualified or not according to the output voltage of the impedance change feedback unit and the output voltage of the luminous tube luminous feedback unit;
the output end of the impedance change feedback unit is connected with the first input end of the qualification judging unit, and the output end of the luminous tube luminous feedback unit is connected with the second input end of the qualification judging unit.
In this embodiment: referring to fig. 4, the impedance change feedback unit includes a fifth resistor R5, a fifth power tube V5 (NMOS), a ninth power tube V9 (NMOS), a tenth power tube V10 (NMOS), a seventh resistor R7, a first potentiometer RP1, and a fourth capacitor C4, wherein one end of the fifth resistor R5 is connected to the power supply voltage VCC, the other end of the fifth resistor R5 is connected to the D pole of the fifth power tube V5, the D pole of the ninth power tube V9, the D pole of the tenth power tube V10, the G pole of the fifth power tube V5 is connected to the first control signal PWM1, the G pole of the ninth power tube V9 is connected to the second control signal PWM2, the G pole of the tenth power tube V10 is connected to the third control signal PWM3, the S pole of the fifth power tube V5 is connected to the S pole of the ninth power tube V9, one end of the seventh resistor R7 is connected to one end of the fourth capacitor C4, one end of the first resistor R1, the first end of the first potentiometer RP1 is connected to the other end of the fourth capacitor C4, and the other end of the fourth capacitor is connected to the fourth capacitor C4 is connected to the other end of the fourth input capacitor RP is connected to the ground.
For example, the discharging function of the new energy battery E1 is normal, after the fourth power tube V4 is turned on and transmits power, the first power tube V1 is turned on, and the second power tube V2 and the third power tube V3 are turned off; at this time, based on the input of the first control signal PWM1, the second control signal PWM2 and the third control signal PWM3 are not input, so that the fifth power tube V5 is turned on, the ninth power tube V9 and the tenth power tube V10 are turned off, so that the current flowing through the first potentiometer RP1 is smaller, and the voltage transmitted to the qualification judging unit is smaller; after the fourth power tube V4 is turned on for power transmission, when the first power tube V1, the second power tube V2 and the third power tube V3 are all turned on, the fifth power tube V5, the ninth power tube V9 and the tenth power tube V10 are all turned on at this time, and the voltage transmitted to the qualification judging unit is larger.
In another embodiment: the fourth capacitor C4 may be omitted, and the fourth capacitor C4 is used to avoid abrupt voltage change when the first potentiometer RP1 is adjusted.
In this embodiment: referring to fig. 4, the luminous feedback unit of the luminous tube includes a sixth resistor R6, a sixth triode V6, a seventh triode V7, an eighth triode V8, an eighth resistor R8, a fifth capacitor C5, and a second potentiometer RP2, one end of the sixth resistor R6 is connected to a power supply voltage VCC, the other end of the sixth resistor R6 is connected to a collector of the sixth triode V6, a collector of the seventh triode V7, a collector of the eighth triode V8, an emitter of the sixth triode V6 is connected to an emitter of the seventh triode V7, an emitter of the eighth triode V8, one end of the eighth resistor R8, the other end of the eighth resistor R8 is connected to one end of the fifth capacitor C5, one end of the second potentiometer RP2, and a second input end of the qualification judging unit, the other end of the fifth capacitor C5 is grounded, the other ends of the second potentiometer RP2 are grounded, the sixth triode V6, the seventh triode V7, and the eighth triode V8 are photo-diodes, and the other ends of the seventh triode V6, the eighth triode V8 are light emitting diodes, and the other ends of the eighth triode V7, V8 are light emitting diodes.
For example, the discharging function of the new energy battery E1 is normal, after the fourth power tube V4 is turned on and transmits power, the first power tube V1 is turned on, and the second power tube V2 and the third power tube V3 are turned off; at this time, only the sixth diode D6 emits light, the base electrode of the corresponding sixth triode V6 receives the light of the sixth diode D6, the sixth triode V6 is turned on, at this time, the current flowing through the second potentiometer RP2 is smaller, and the voltage output to the qualification judging unit is smaller; after the fourth power tube V4 is turned on for power transmission, when the first power tube V1, the second power tube V2 and the third power tube V3 are all turned on, the sixth diode D6, the seventh diode D7 and the eighth diode D8 emit light and illuminate, and the sixth triode V6, the seventh triode V7 and the eighth triode V8 receive the illumination of the corresponding light emitting diodes and are all turned on, so that the voltage output to the qualification judging unit is larger.
In another embodiment: the second potentiometer RP2 may be replaced with a common resistor so that the voltage output to the pass judgment unit cannot be changed in the case where the current flowing therethrough is determined.
In this embodiment: referring to fig. 4, the qualification judging unit includes a first amplifier U1, a ninth resistor R9, and a voice chip Y, wherein the in-phase end of the first amplifier U1 is connected to the output end of the impedance change feedback unit, the opposite phase end of the first amplifier U1 is connected to the output end of the luminous tube luminous feedback unit, the output end of the first amplifier U1 is connected to one end of the ninth resistor R9, the other end of the ninth resistor R9 is connected to one end of the voice chip Y, and the other end of the voice chip Y is grounded.
By adjusting the first potentiometer RP1 and the second potentiometer RP2, when the discharging function of the new energy battery E1 is normal, the in-phase terminal voltage of the first amplifier U1 is higher than the reverse-phase terminal voltage, the first amplifier U1 outputs a high level to trigger the voice chip Y to work, and the voice chip Y prompts that the discharging performance of the new energy battery E1 is qualified; when the discharging function of the new energy battery E1 is abnormal, for example, after the fourth power tube V4 is turned on and transmits power, the first power tube V1 is turned on, the second power tube V2 and the third power tube V3 are not turned on, and at this time, the seventh diode D7 emits light or both the seventh diode D7 and the eighth diode D8 emit light in addition to the sixth diode D6. Under the condition that the impedance change feedback unit is only conducted by the fifth power tube V5, the luminous tube luminous feedback unit has the condition that the seventh triode V7 is conducted or the seventh triode V7 and the eighth triode V8 are both conducted on the basis that the sixth triode V6 is conducted, so that the voltage of the same phase end of the first amplifier U1 is smaller than the voltage of the opposite phase end, and the voice prompt of the voice chip Y is not triggered.
In another embodiment: related light emitting diodes can be added, and the discharge performance detection result of the new energy battery E1 is prompted by whether the light is emitted or not.
The working principle of the invention is as follows: the battery discharging module 1 is used for providing a discharging loop for the new energy battery E1, and adjusting the impedance of the discharging loop through a control signal, wherein the control signal is a PWM signal; the battery discharge detection module 2 is used for detecting the voltage of the new energy battery E1 and controlling whether the luminous tubes emit light according to the change of the voltage, wherein the voltage change sets change time, a plurality of change time are arranged, and the number of the luminous tubes corresponds to the number of the change time; the detection result feedback module 3 is configured to determine whether the discharge performance of the new energy battery E1 is acceptable according to the impedance of the battery discharge module 1 and the number of light emitting tubes of the battery discharge detection module 2, and if the discharge performance of the new energy battery E1 is acceptable, prompt by voice.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. Accordingly, the embodiments are to be considered in all respects as illustrative and not restrictive.
Furthermore, it should be understood that although the present disclosure describes embodiments, not every embodiment is provided with a separate embodiment, and that this description is provided for clarity only, and that the disclosure is not limited to the embodiments described in detail below, and that the embodiments described in the examples may be combined as appropriate to form other embodiments that will be apparent to those skilled in the art.
Claims (1)
1. The utility model provides a new energy battery performance detection circuitry which characterized in that, this new energy battery performance detection circuitry includes:
the battery discharging module is used for providing a discharging loop for the new energy battery, adjusting the impedance of the discharging loop through a control signal, wherein the control signal is a PWM signal;
the battery discharge detection module is used for detecting the voltage of the new energy battery and controlling whether the luminous tubes emit light according to the change of the voltage, wherein the voltage change sets change time, a plurality of change time are arranged, and the number of the luminous tubes corresponds to the number of the change time;
the detection result feedback module is used for judging whether the discharge performance of the new energy battery is qualified according to the impedance of the battery discharge module and the luminous number of luminous tubes of the battery discharge detection module, and prompting by voice if the discharge performance of the new energy battery is qualified;
the input end of the battery discharging module is connected with the positive electrode of the new energy battery and the input end of the battery discharging detection module, the negative electrode of the new energy battery is grounded, the output end of the battery discharging module is connected with the first input end of the detection result feedback module, and the output end of the battery discharging detection module is connected with the second input end of the detection result feedback module;
the battery discharging module comprises a first power tube, a second power tube, a third power tube, a fourth power tube, a voltmeter, an ammeter, a first resistor, a second resistor and a third resistor, wherein the D electrode of the fourth power tube is connected with the positive electrode of the new energy battery, the G electrode of the fourth power tube is connected with a fourth control signal, the S electrode of the fourth power tube is connected with one end of the ammeter, the other end of the ammeter is connected with the D electrode of the first power tube, the D electrode of the second power tube, the D electrode of the third power tube and one end of the voltmeter, the other end of the voltmeter is grounded, the S electrode of the first power tube is grounded through the first resistor, the G electrode of the first power tube is connected with a first control signal, the S electrode of the second power tube is grounded through the second resistor, the G electrode of the second power tube is connected with a second control signal, the S electrode of the third power tube is grounded through the third resistor, and the G electrode of the third power tube is connected with a third control signal;
the battery discharge detection module comprises a fourth resistor, a first diode, a second diode, a sixth diode, a seventh diode, an eighth diode and a delay processing unit, wherein one end of the fourth resistor is connected with the positive electrode of the new energy battery, the other end of the fourth resistor is connected with the positive electrode of the first diode, the negative electrode of the first diode is connected with the positive electrode of the second diode and the first end of the delay processing unit, the second end of the delay processing unit is connected with the positive electrode of the sixth diode, the third end of the delay processing unit is connected with the positive electrode of the seventh diode, the fourth end of the delay processing unit is connected with the positive electrode of the eighth diode, and the negative electrode of the second diode is connected with the negative electrode of the sixth diode, the negative electrode of the seventh diode and the negative electrode of the eighth diode;
the delay processing unit comprises a first inductor, a second inductor, a third inductor, a first capacitor, a second capacitor, a third diode, a fourth diode, a fifth diode, a tenth resistor, an eleventh resistor and a twelfth resistor, wherein one end of a first power supply is connected with one end of the second inductor, one end of the third inductor and the cathode of the first diode, the other end of the first inductor is connected with one end of the first capacitor and the anode of the third diode, the other end of the first capacitor is grounded, the cathode of the third diode is connected with the anode of the sixth diode through the tenth resistor, the other end of the second inductor is connected with one end of the second capacitor and the anode of the fourth diode, the other end of the fourth diode is grounded through the eleventh resistor, the other end of the third inductor is connected with one end of the third capacitor and the anode of the fifth diode, the other end of the third capacitor is grounded, and the cathode of the fifth diode is connected with the anode of the eighth diode through the twelfth resistor;
the detection result feedback module comprises:
the impedance change feedback unit is used for changing the voltage output to the qualification judging unit according to the control signal;
the luminous feedback unit of the luminotron, is used for changing the voltage magnitude that is outputted to the qualification judging unit according to the luminous number of luminotron;
the qualification judging unit is used for judging whether the discharge performance of the new energy battery is qualified or not according to the output voltage of the impedance change feedback unit and the output voltage of the luminous feedback unit of the luminous tube;
the output end of the impedance change feedback unit is connected with the first input end of the qualification judging unit, and the output end of the luminous tube luminous feedback unit is connected with the second input end of the qualification judging unit;
the impedance change feedback unit comprises a fifth resistor, a fifth power tube, a ninth power tube, a tenth power tube, a seventh resistor, a first potentiometer and a fourth capacitor, wherein one end of the fifth resistor is connected with a power supply voltage, the other end of the fifth resistor is connected with a D pole of the fifth power tube, a D pole of the ninth power tube and a D pole of the tenth power tube, a G pole of the fifth power tube is connected with a first control signal, a G pole of the ninth power tube is connected with a second control signal, a G pole of the tenth power tube is connected with a third control signal, an S pole of the fifth power tube is connected with an S pole of the ninth power tube, an S pole of the tenth power tube and one end of the seventh resistor, the other end of the seventh resistor is connected with one end of the fourth capacitor, one end of the first potentiometer and a first input end of the qualification judging unit, the other end of the first potentiometer is grounded, and the other end of the fourth capacitor is grounded;
the luminous feedback unit of the luminotron comprises a sixth resistor, a sixth triode, a seventh triode, an eighth resistor, a fifth capacitor and a second potentiometer, one end of the sixth resistor is connected with a power supply voltage, the other end of the sixth resistor is connected with a collector of the sixth triode, a collector of the seventh triode and a collector of the eighth triode, an emitter of the sixth triode is connected with an emitter of the seventh triode, an emitter of the eighth triode and one end of the eighth resistor, the other end of the eighth resistor is connected with one end of the fifth capacitor, one end of the second potentiometer and a second input end of the qualification judging unit, the other end of the fifth capacitor is grounded, the other ends of the second potentiometer are grounded, and bases of the sixth triode, the seventh triode and the eighth triode respectively receive illumination of different luminotrons;
the qualification judging unit comprises a first amplifier, a ninth resistor and a voice chip, wherein the in-phase end of the first amplifier is connected with the output end of the impedance change feedback unit, the inverting end of the first amplifier is connected with the output end of the luminous feedback unit of the luminous tube, the output end of the first amplifier is connected with one end of the ninth resistor, the other end of the ninth resistor is connected with one end of the voice chip, and the other end of the voice chip is grounded.
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| CN102004227A (en) * | 2010-11-02 | 2011-04-06 | 杭州电子科技大学 | High power battery detection circuit of electric vehicle |
| CN105021998A (en) * | 2015-08-11 | 2015-11-04 | 深圳市亿通科技有限公司 | Battery voltage detection device and electronic equipment |
| CN110988717A (en) * | 2019-12-10 | 2020-04-10 | 惠州Tcl移动通信有限公司 | Battery detection method, storage medium and terminal device |
| CN115575836A (en) * | 2022-12-08 | 2023-01-06 | 山东惠尔佳生物有限公司 | Beach buggy battery electric quantity detection circuitry |
| CN116735948A (en) * | 2023-08-14 | 2023-09-12 | 深圳市思远半导体有限公司 | Zero-crossing detection circuit and switching power supply |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6836095B2 (en) * | 2003-04-28 | 2004-12-28 | Semtech Corporation | Battery charging method and apparatus |
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102004227A (en) * | 2010-11-02 | 2011-04-06 | 杭州电子科技大学 | High power battery detection circuit of electric vehicle |
| CN105021998A (en) * | 2015-08-11 | 2015-11-04 | 深圳市亿通科技有限公司 | Battery voltage detection device and electronic equipment |
| CN110988717A (en) * | 2019-12-10 | 2020-04-10 | 惠州Tcl移动通信有限公司 | Battery detection method, storage medium and terminal device |
| CN115575836A (en) * | 2022-12-08 | 2023-01-06 | 山东惠尔佳生物有限公司 | Beach buggy battery electric quantity detection circuitry |
| CN116735948A (en) * | 2023-08-14 | 2023-09-12 | 深圳市思远半导体有限公司 | Zero-crossing detection circuit and switching power supply |
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