CN214707267U - Intelligent charger with double-battery voltage output - Google Patents
Intelligent charger with double-battery voltage output Download PDFInfo
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- CN214707267U CN214707267U CN202120144940.3U CN202120144940U CN214707267U CN 214707267 U CN214707267 U CN 214707267U CN 202120144940 U CN202120144940 U CN 202120144940U CN 214707267 U CN214707267 U CN 214707267U
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Abstract
The utility model discloses an intelligent charger with double battery voltage output, which comprises an AC-DC circuit module, a standby power module and a switch unit which are connected with the AC-DC circuit module, a charging output interface and an MCU control module which are connected with the switch unit, wherein the MCU control module is connected with the charging output interface; the switch unit comprises a relay, the relay is provided with two paths of normally open switches, two ends of the first path of normally open switch are respectively connected with the AC-DC circuit module and the charging output interface, and two ends of the second path of normally open switch are respectively connected with the AC-DC circuit module and the voltage doubling circuit module; when the first normally-open switch is closed and the second normally-open switch is opened, the voltage of the charging output interface is the output voltage of the AC-DC circuit module; when the first normally open switch is opened and the second normally open switch is closed, the voltage of the charging output interface is the output voltage of the voltage doubling circuit module.
Description
-technical field:
the utility model relates to a charger technical field refers in particular to an intelligent charger with double cell voltage output.
Background art:
at present, the chargers have voltage rated charging range limitation, for example, a 12V charger cannot charge a 24V battery, and a 24V charger cannot charge a 48V battery, so that a plurality of chargers are needed to charge matched batteries, and the use is very inconvenient.
In view of the above, the present inventors propose the following.
The utility model has the following contents:
an object of the utility model is to overcome prior art not enough, provide an intelligent charger with double cell voltage output.
In order to solve the technical problem, the utility model discloses a following technical scheme: the intelligent charger with double battery voltage outputs comprises an AC-DC circuit module, a switch unit connected with the AC-DC circuit module, a charging output interface connected with the switch unit, an MCU control module connected with the switch unit and controlling the switch unit to work, and a standby power supply module connected with the AC-DC circuit module and used for supplying power to the MCU control module, wherein the MCU control module is connected with the charging output interface to judge the voltage of the charging output interface; the switch unit comprises a relay which is provided with two paths of normally open switches, wherein two ends of the first path of normally open switch are respectively connected with the AC-DC circuit module and the charging output interface, and two ends of the second path of normally open switch are respectively connected with the AC-DC circuit module and the voltage doubling circuit module; when the first normally-open switch is closed and the second normally-open switch is opened, the voltage of the charging output interface is the output voltage of the AC-DC circuit module; when the first normally open switch is opened and the second normally open switch is closed, the voltage of the charging output interface is the output voltage of the voltage doubling circuit module.
Further, in the above technical solution, the voltage doubling circuit module includes a boost main control chip, an MOS transistor Q1, an MOS transistor Q2, an MOS transistor Q3, an MOS transistor Q4, an MOS transistor Q4, a Vin end and a Vout end, the Vin end is connected to the second normally-open switch, the Vout end is connected to the charge output interface, a G pole of the MOS transistor Q1, a G pole of the MOS transistor Q2, a G pole of the MOS transistor Q3, a G pole of the MOS transistor Q4, and a G pole of the MOS transistor Q4 are respectively connected to one pin of the boost main control chip, a D pole of the MOS transistor Q1 is connected to the Vout end after being connected to a current limiting resistor R9, an S pole of the MOS transistor Q1 is connected to a D pole of the MOS transistor Q2, an S pole of the MOS transistor Q2 is connected to a D pole of the MOS transistor Q3, an S pole of the MOS transistor Q3 is connected to a D pole of the MOS transistor Q4, an S pole of the MOS transistor Q4 is connected to the ground, and a capacitor Q3S pole of the MOS transistor Q1 is connected to the ground; a voltage division capacitor C2 is connected between the S pole of the MOS transistor Q2 and the S pole of the MOS transistor Q3; the S pole of the MOS transistor Q5 is connected with the S pole of the MOS transistor Q2, the D pole of the MOS transistor Q5 is connected with the Vin end, and the G pole of the MOS transistor Q5 is connected with a pin of the boosting main control chip after being connected with the resistor R10.
Further, in the above technical solution, the S-pole of the MOS transistor Q1 is connected to a voltage boost capacitor C5; the S pole of the MOS transistor Q2 is connected with a voltage-raising capacitor C6; and the S pole of the MOS transistor Q3 is connected with a voltage-raising capacitor C7.
Furthermore, in the above technical solution, a gate voltage regulator ZD1 for protection is connected between the S pole and the G pole of the MOS transistor Q5.
Further, in the above technical solution, the Vin end is connected to an input capacitor Cin; and the Vout end is connected with an input capacitor Cout.
Further, in the above technical solution, the MCU control module is further connected to a power switch button.
Further, in the above technical solution, the MCU control module is further connected to a display circuit module.
After the technical scheme is adopted, compared with the prior art, the utility model has following beneficial effect: the utility model adopts the relay with two paths of normally open switches as the switch unit, and adds the voltage doubling circuit module between the relay and the charging output interface, when the first path of normally open switch of the relay is closed and the second path of normally open switch is opened, the voltage of the charging output interface is the output voltage of the AC-DC circuit module; when the first normally open switch is opened and the second normally open switch is closed, the voltage of the charging output interface is the output voltage of the voltage doubling circuit module, so that two different output voltages can be used for charging two different batteries, and the use is very convenient. In addition, after the charging output interface is connected with the battery, the MCU control module can directly detect and judge the voltage of the battery so that the relay can select different voltages to output different voltages to charge different batteries, and the function of automatic pairing is achieved.
Description of the drawings:
fig. 1 is a schematic circuit diagram of the present invention;
fig. 2 is a circuit diagram of the voltage doubling circuit module of the present invention.
The specific implementation mode is as follows:
the present invention will be further described with reference to the following specific embodiments and accompanying drawings.
As shown in fig. 1-2, the intelligent charger with dual battery voltage output includes an AC-DC circuit module 1, a switch unit 2 connected to the AC-DC circuit module 1, a charging output interface 3 connected to the switch unit 2, an MCU control module 4 connected to the switch unit 2 and controlling the switch unit 2 to operate, and a standby power module 5 connected to the AC-DC circuit module 1 and configured to supply power to the MCU control module 4, wherein the MCU control module 4 is connected to the charging output interface 3 to determine the voltage of the charging output interface 3, and a voltage doubling circuit module 6 is further connected between the switch unit 2 and the charging output interface 3; the switch unit 2 comprises a relay which is provided with two paths of normally open switches, wherein two ends of a first path of normally open switch 21 are respectively connected with the AC-DC circuit module 1 and the charging output interface 3, and two ends of a second path of normally open switch 22 are respectively connected with the AC-DC circuit module 1 and the voltage doubling circuit module 6; when the first normally-open switch 21 is closed and the second normally-open switch 22 is opened, the voltage of the charging output interface 3 is the output voltage of the AC-DC circuit module 1; when the first normally-open switch 21 is opened and the second normally-open switch 22 is closed, the voltage of the charging output interface 3 is the output voltage of the voltage-doubling circuit module 6. The utility model adopts the relay with two paths of normally open switches as the switch unit, and adds the voltage doubling circuit module 6 between the relay and the charging output interface 3, when the first path of normally open switch 21 of the relay is closed and the second path of normally open switch 22 is opened, the voltage of the charging output interface 3 is the output voltage of the AC-DC circuit module 1; when the first normally open switch 21 is opened and the second normally open switch 22 is closed, the voltage of the charging output interface 3 is the output voltage of the voltage doubling circuit module 6, so that two different output voltages can be used for charging two different batteries, and the use is very convenient. In addition, after the charging output interface 3 is connected with the battery, the MCU control module 4 can directly detect and determine the battery voltage to enable the relay to selectively output different voltages to charge different batteries, thereby achieving the function of automatic pairing.
The voltage doubling circuit module 6 comprises a boosting main control chip 61, a MOS transistor Q1, a MOS transistor Q2, a MOS transistor Q3, a MOS transistor Q4, a MOS transistor Q4, a Vin end 62 and a Vout end 63, wherein the Vin end 62 is connected with the second normally-open switch 22, the Vout end 63 is connected with the charging output interface 3, a G pole of the MOS transistor Q1, a G pole of the MOS transistor Q2, a G pole of the MOS transistor Q3, a G pole of the MOS transistor Q4 and a G pole of the MOS transistor Q4 are respectively connected with one pin of the boosting main control chip 61, a D pole of the MOS transistor Q1 is connected with the Vout end 63 after being connected with a current limiting resistor R9, an S pole of the MOS transistor Q1 is connected with a D pole of the MOS transistor Q2, an S pole of the MOS transistor Q2 is connected with a D pole of the MOS transistor Q3, an S pole of the MOS transistor Q3 is connected with a D pole of the MOS transistor Q4, an S pole of the MOS transistor Q4 is connected with a ground, and a capacitor Q3 is connected between the MOS transistor Q1 and the MOS transistor Q1; a voltage division capacitor C2 is connected between the S pole of the MOS transistor Q2 and the S pole of the MOS transistor Q3; the S pole of the MOS transistor Q5 is connected to the S pole of the MOS transistor Q2, the D pole of the MOS transistor Q5 is connected to the Vin terminal 62, and the G pole of the MOS transistor Q5 is connected to the resistor R10 and then connected to one pin of the boost main control chip 61.
When the voltage doubling circuit module 6 works, in the action period 1 (the first normally-open switch 21 is closed, and the second normally-open switch 22 is opened): the MOS transistor Q2 and the MOS transistor Q4 operate, the voltage dividing capacitor C3 and the voltage dividing capacitor C2 are in parallel, the output voltage is C3-C2-input voltage (that is, Vin), and at this time, the voltage of the charging output interface 3 is the input voltage (that is, Vin) of the voltage-doubling circuit module 6, that is, the output voltage of the AC-DC circuit module 1. During action cycle 2 (the first normally-open switch 21 is open, and the second normally-open switch 22 is closed): the MOS transistor Q1 and the MOS transistor Q3 operate, the voltage dividing capacitor C3 and the voltage dividing capacitor C2 are in series, and the output voltage C3+ C2 is the output voltage (i.e., Vout) is 2 Vin. At this time, the voltage of the charging output interface 3 is the output voltage (i.e., Vout) of the voltage doubling circuit module 6, which is twice the output voltage of the AC-DC circuit module 1.
The S pole of the MOS transistor Q1 is connected with a voltage-raising capacitor C5; the S pole of the MOS transistor Q2 is connected with a voltage-raising capacitor C6; and the S pole of the MOS transistor Q3 is connected with a voltage-raising capacitor C7.
A gate voltage regulator ZD1 used for protection is connected between the S pole and the G pole of the MOS transistor Q5.
The Vin end 62 is connected with an input capacitor Cin; the Vout terminal 63 is connected to an input capacitor Cout.
The MCU control module 4 is also connected with a power supply switching button 7.
The MCU control module 4 is also connected with a display circuit module 8.
When the battery is connected with a 12V battery, the MCU control module 4 can judge the voltage of the battery and control the first normally open switch of the relay to be switched on and switched off, the AC-DC circuit module 1 outputs 12V voltage and 20A current to charge the 12V battery, and the MCU control module 4 controls the first normally open switch of the relay to be switched on until the 12V battery is fully charged.
When the battery is connected with a 24V battery, the MCU control module 4 judges the voltage of the battery and controls the second normally open switch of the relay to be switched on and switched off, the AC-DC circuit module 1 outputs 24V voltage and 10A current to charge the 24V battery, and the MCU control module 4 controls the second normally open switch of the relay to be switched on until the 24V battery is fully charged.
When the voltage of the 24V battery is lower than 12V, the MCU control module 4 determines that the 12V battery charging mode is the 12V battery charging mode, and the battery voltage is switched to enter the 24V battery charging mode only by using the power switch button 7, and the AC-DC circuit module 1 outputs a cross current 20A to charge the battery when the battery voltage is low initially until the 24V battery exceeds 14V, and the circuit is switched to 24V voltage and 10A current to charge the 24V battery until the battery is fully charged.
To sum up, the utility model adopts the relay with two paths of normally open switches as the switch unit, and adds the voltage doubling circuit module 6 between the relay and the charging output interface 3, when the first path of normally open switch 21 of the relay is closed and the second path of normally open switch 22 is opened, the voltage of the charging output interface 3 is the output voltage of the AC-DC circuit module 1; when the first normally open switch 21 is opened and the second normally open switch 22 is closed, the voltage of the charging output interface 3 is the output voltage of the voltage doubling circuit module 6, so that two different output voltages can be used for charging two different batteries, and the use is very convenient. In addition, after the charging output interface 3 is connected with the battery, the MCU control module 4 can directly detect and determine the battery voltage to enable the relay to selectively output different voltages to charge different batteries, thereby achieving the function of automatic pairing.
Of course, the above description is only an exemplary embodiment of the present invention, and not intended to limit the scope of the present invention, and all equivalent changes and modifications made by the constructions, features, and principles of the present invention in accordance with the claims of the present invention are intended to be included in the scope of the present invention.
Claims (7)
1. The utility model provides an intelligent charger with double cell voltage output, it includes AC-DC circuit module (1), switch element (2) of being connected with this AC-DC circuit module (1), charge output interface (3) of being connected with switch element (2) and MCU control module (4) and stand-by power supply module (5) of being connected with AC-DC circuit module (1) and being used for to MCU control module (4) power supply that are connected and control this switch element (2) work with switch element (2), this MCU control module (4) are connected and are charged output interface (3) in order to judge the voltage of this output interface (3) that charges, its characterized in that:
a voltage doubling circuit module (6) is also connected between the switch unit (2) and the charging output interface (3); the switch unit (2) comprises a relay which is provided with two paths of normally open switches, wherein two ends of a first path of normally open switch (21) are respectively connected with the AC-DC circuit module (1) and the charging output interface (3), and two ends of a second path of normally open switch (22) are respectively connected with the AC-DC circuit module (1) and the voltage doubling circuit module (6); when the first normally-open switch (21) is closed and the second normally-open switch (22) is opened, the voltage of the charging output interface (3) is the output voltage of the AC-DC circuit module (1); when the first normally-open switch (21) is opened and the second normally-open switch (22) is closed, the voltage of the charging output interface (3) is the output voltage of the voltage-multiplying circuit module (6).
2. A smart charger with dual battery voltage outputs as claimed in claim 1, wherein: the voltage doubling circuit module (6) comprises a boosting main control chip (61), an MOS tube Q1, an MOS tube Q2, an MOS tube Q3, an MOS tube Q4, an MOS tube Q4, a Vin end (62) and a Vout end (63), the Vin end (62) is connected with the second normally open switch (22), the Vout end (63) is connected with the charging output interface (3), the G pole of the MOS transistor Q1, the G pole of the MOS transistor Q2, the G pole of the MOS transistor Q3, the G pole of the MOS transistor Q4 and the G pole of the MOS transistor Q4 are respectively connected with one pin of the boosting main control chip (61), the D pole of the MOS transistor Q1 is connected with the current-limiting resistor R9 and then connected with the Vout end (63), the S pole of the MOS transistor Q1 is connected with the D pole of the MOS transistor Q2, the S pole of the MOS transistor Q2 is connected with the D pole of the MOS transistor Q3, the S pole of the MOS transistor Q3 is connected with the D pole of the MOS transistor Q4, the S pole of the MOS transistor Q4 is grounded, a voltage division capacitor C3 is connected between the S pole of the MOS transistor Q1 and the S pole of the MOS transistor Q3; a voltage division capacitor C2 is connected between the S pole of the MOS transistor Q2 and the S pole of the MOS transistor Q3; the S pole of the MOS transistor Q5 is connected with the S pole of the MOS transistor Q2, the D pole of the MOS transistor Q5 is connected with the Vin end (62), and the G pole of the MOS transistor Q5 is connected with a pin of the boosting main control chip (61) after being connected with the resistor R10.
3. A smart charger with dual battery voltage outputs as claimed in claim 2, wherein: the S pole of the MOS transistor Q1 is connected with a voltage-raising capacitor C5; the S pole of the MOS transistor Q2 is connected with a voltage-raising capacitor C6; and the S pole of the MOS transistor Q3 is connected with a voltage-raising capacitor C7.
4. A smart charger with dual battery voltage outputs as claimed in claim 2, wherein: a gate voltage regulator ZD1 used for protection is connected between the S pole and the G pole of the MOS transistor Q5.
5. A smart charger with dual battery voltage outputs as claimed in claim 2, wherein: the Vin end (62) is connected with an input capacitor Cin; and the Vout end (63) is connected with an input capacitor Cout.
6. An intelligent charger with dual battery voltage outputs as claimed in any one of claims 1 to 5, wherein: the MCU control module (4) is also connected with a power supply switching button (7).
7. An intelligent charger with dual battery voltage outputs as claimed in any one of claims 1 to 5, wherein: the MCU control module (4) is also connected with a display circuit module (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120144940.3U CN214707267U (en) | 2021-01-19 | 2021-01-19 | Intelligent charger with double-battery voltage output |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120144940.3U CN214707267U (en) | 2021-01-19 | 2021-01-19 | Intelligent charger with double-battery voltage output |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214707267U true CN214707267U (en) | 2021-11-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120144940.3U Active CN214707267U (en) | 2021-01-19 | 2021-01-19 | Intelligent charger with double-battery voltage output |
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| Country | Link |
|---|---|
| CN (1) | CN214707267U (en) |
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2021
- 2021-01-19 CN CN202120144940.3U patent/CN214707267U/en active Active
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