CN111463865B - Constant voltage battery energy management module device - Google Patents
Constant voltage battery energy management module device Download PDFInfo
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- CN111463865B CN111463865B CN202010367553.6A CN202010367553A CN111463865B CN 111463865 B CN111463865 B CN 111463865B CN 202010367553 A CN202010367553 A CN 202010367553A CN 111463865 B CN111463865 B CN 111463865B
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0063—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with circuits adapted for supplying loads from the battery
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0042—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries characterised by the mechanical construction
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Abstract
The invention discloses a constant-voltage battery energy management module device which comprises an outer shell, wherein an outgoing line plug and an incoming line plug are installed on the outer shell, a circuit board is installed in the outer shell, and a battery energy management module and a peripheral circuit module are arranged on the circuit board; the miniature waterproof module can be arranged in all the batteries of the four-component instrument without influencing the use of the batteries; the residual electric quantity of the battery can be excavated to the maximum extent, the voltage can be stabilized, and the power requirement of the instrument can be met.
Description
Technical Field
The invention relates to the technical field of batteries, in particular to a constant-voltage battery energy management module device.
Background
At present, in the instruments used in the process of popularizing the four-component production in the oil field, lithium batteries of ER34615 type are mostly needed, but the batteries cannot be charged, the voltage of the batteries is reduced after the batteries are used for a period of time, the production requirements cannot be met, the residual electric quantity of the batteries cannot be utilized, the voltage is unstable, and the instrument requirements cannot be met; and the battery of prior art does not have waterproof module mostly, can't install in the quadruple instrument on a large scale, leads to its use to be restricted.
Disclosure of Invention
The invention aims to provide a constant-voltage battery energy management module device, which solves the problems that in the prior art, the voltage of a battery is reduced after an instrument battery is used for a period of time, the production requirement cannot be met, the residual electric quantity of the battery cannot be utilized, the voltage is unstable, and the instrument requirement cannot be met; and the battery of prior art does not have waterproof module mostly, can't install in the four instruments on a large scale, leads to its problem such as use restriction.
The constant voltage battery energy management module device comprises an outer shell, wherein an outlet wire plug and an inlet wire plug are installed on the outer shell, a circuit board is installed in the outer shell, a battery energy management module and a peripheral circuit module are arranged on the circuit board, a VDD pin of the battery energy management module is connected with a first end of a soft start module, the VDD pin is connected with an EN pin, the VDD pin is connected with an OUT pin, the EN pin is connected with a close control module, the EN pin is connected with a GND pin, the GND pin is grounded, a second end of the soft start module is connected with an A end of a selector, a B end of the selector is connected with a third end of a PWM control module, the third end of the selector is connected with an output end of an output comparator, a fourth end of the selector is connected with a first end of a synchronous drive module, the first end of the PWM control module is connected with a first end of a generator, and the second end of the PWM control module is connected with an output end of the comparator, the second end of the generator is connected with the first end of the triangular wave compensator, the second end of the triangular wave compensator is connected with the first end of the integrator, the third end of the triangular wave compensator is connected with the negative electrode of the comparator, the second end of the integrator is connected with the positive electrode of the comparator, the third end of the integrator is connected with the ground, the third end of the integrator is connected with the source electrode of the second MOSFET, the drain electrode of the second MOSFET is connected with the drain electrode of the first MOSFET, the grid electrode of the second MOSFET is connected with the third end of the synchronous driver, the second end of the synchronous driver is connected with the grid electrode of the first MOSFET, the source electrode of the first MOSFET is connected with the positive electrode of the output comparator and the OUT pin, the drain electrode of the first MOSFET is connected with the SW pin, the OUT pin is connected with the SW pin, the SW pin is connected with the FB pin, the FB pin is connected with the GND pin, the FB pin is connected with the first end of the error device, the second end of the error device is connected with the 1.203V end, the output end of the error device is connected with the cathode of the diode, the anode of the diode is grounded, the anode of the diode is connected with the GND pin, the output end of the error device is grounded through a second capacitor, the second capacitor is connected with the GND pin, the output end of the error device is connected with the first end of the first capacitor through a first resistor, the second end of the first capacitor is grounded, the second end of the first capacitor is connected with the GND pin, and the output end of the error device is connected with the cathode of the comparator.
In the above scheme, preferably, the peripheral circuit is that the VDD pin is connected to a VIN voltage input terminal of the power supply and is connected to one end of the inductor, the other end of the inductor is connected to the SW1 pin and is connected to an anode of the diode, a cathode of the diode is connected to the pin VOUT, a cathode of the diode is connected to an upper end of the resistor R1, a cathode of the diode is connected to an upper end of the capacitor C1, a cathode of the diode is connected to an anode of the polar capacitor C2, and a cathode of the diode is connected to the output voltage VOUT; the lower end of the resistor R1 is connected with the upper end of the resistor R2, the lower end of the resistor R1 is connected with the pin FB3, and the lower end of the resistor R1 is connected with the lower end of the capacitor C1; the lower end of the electron R2 is connected with the ground; the negative electrode of the polarity capacitor C2 is connected with the ground; the pin GND is connected with the ground; the EN pin is connected with the GND pin.
It is also preferable that the EN pin normally operates at a high level, and the operating frequency is 1.5 MHz; and stopping the system when the EN is at a low level, wherein the quiescent current is less than l [ mu ] A, and the module is in a work stopping state.
It may also be preferred that the VDD pin is connected to the battery input voltage.
It may also be preferred that the SW pin is a switch pin and the inductor is connected between the SW pin and the VDD pin.
It may also be preferred that the GND pin is connected to signal ground and power ground.
It may also be preferred that the FB pin is connected to a feedback input of a differential amplifier, with the resistor divider taps connected to the FB pin.
It may also be preferred that the output voltage is 2.5V-5V.
It may also be preferred that the OUT pin is connected to the output voltage, the sense input and to the drain of the internal synchronous rectifier MOSFET.
It may also be preferred that the GND pin is connected to signal ground and power ground.
The invention has the following advantages:
the constant-voltage battery energy management module device can solve the problems that in the prior art, the voltage of a battery is reduced after an instrument battery is used for a period of time, the production requirement cannot be met, the residual electric quantity of the battery cannot be utilized, the voltage is unstable, and the instrument requirement cannot be met; the miniature waterproof module can be arranged in all the batteries of the four-component instrument without influencing the use of the batteries; the residual electric quantity of the battery can be excavated to the maximum extent, the voltage can be stabilized, and the power requirement of the instrument can be met.
Drawings
Fig. 1 is a configuration view of an external form of a constant voltage battery energy management module device according to the present invention.
Fig. 2 is a block diagram of an internal circuit of a battery energy management module of the constant voltage battery energy management module apparatus of the present invention.
Fig. 3 is a peripheral circuit diagram of the constant voltage battery energy management module device of the present invention.
Fig. 4 is a graph of the discharge of the ER34615 battery before the constant voltage battery energy management module device of the present invention is installed.
Fig. 5 is a graph of the ER34615 battery discharge curve after installation of the constant voltage battery energy management module apparatus module of the present invention.
In the figure, 1 is an outer shell, 2 is an outlet plug, and 3 is an inlet plug.
Detailed Description
The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention.
Example 1
A constant voltage battery energy management module device, see figure 1, comprises an outer shell 1, an outlet plug 2 and an inlet plug 3 are arranged on the outer shell 1, a circuit board is arranged in the outer shell 1, a battery energy management module and a peripheral circuit module are arranged on the circuit board, see figure 2, a VDD pin of the battery energy management module is connected with a first end of a soft start module, the VDD pin is connected with an EN pin, the VDD pin is connected with an OUT pin, the EN pin is connected with a close control module, the EN pin is connected with a GND pin, the GND pin is grounded, a second end of the soft start module is connected with an A end of a selector, a B end of the selector is connected with a third end of a PWM control module, a third end of the selector is connected with an output end of an output comparator, a fourth end of the selector is connected with a first end of a synchronous drive module, a first end of the PWM control module is connected with a first end of a generator, and a second end of the PWM control module is connected with an output end of the comparator, the second end of the generator is connected with the first end of the triangular wave compensator, the second end of the triangular wave compensator is connected with the first end of the integrator, the third end of the triangular wave compensator is connected with the negative electrode of the comparator, the second end of the integrator is connected with the positive electrode of the comparator, the third end of the integrator is connected with the ground, the third end of the integrator is connected with the source electrode of the second MOSFET, the drain electrode of the second MOSFET is connected with the drain electrode of the first MOSFET, the grid electrode of the second MOSFET is connected with the third end of the synchronous driver, the second end of the synchronous driver is connected with the grid electrode of the first MOSFET, the source electrode of the first MOSFET is connected with the positive electrode of the output comparator and the OUT pin, the drain electrode of the first MOSFET is connected with the SW pin, the OUT pin is connected with the SW pin, the SW pin is connected with the FB pin, the FB pin is connected with the GND pin, the FB pin is connected with the first end of the error device, the second end of the error device is connected with the 1.203V end, the output end of the error device is connected with the cathode of the diode, the anode of the diode is grounded, the anode of the diode is connected with the GND pin, the output end of the error device is grounded through a second capacitor, the second capacitor is connected with the GND pin, the output end of the error device is connected with the first end of the first capacitor through a first resistor, the second end of the first capacitor is grounded, the second end of the first capacitor is connected with the GND pin, and the output end of the error device is connected with the cathode of the comparator.
Preferably, referring to fig. 3, the peripheral circuit is that the VDD pin is connected to a VIN voltage input terminal of the power supply and is connected to one end of the inductor, the other end of the inductor is connected to the SW1 pin and is connected to an anode of the diode, a cathode of the diode is connected to the pin VOUT, a cathode of the diode is connected to an upper end of the resistor R1, a cathode of the diode is connected to an upper end of the capacitor C1, a cathode of the diode is connected to an anode of the polar capacitor C2, and a cathode of the diode is connected to the output voltage VOUT; the lower end of the resistor R1 is connected with the upper end of the resistor R2, the lower end of the resistor R1 is connected with the pin FB3, and the lower end of the resistor R1 is connected with the lower end of the capacitor C1; the lower end of the electron R2 is connected with the ground; the negative electrode of the polarity capacitor C2 is connected with the ground; the pin GND is connected with the ground; the EN pin is connected with the GND pin.
PWM is pulse width modulation, and EN pin detects the detection level height, if in the work of reasonable operating voltage interval circuit, constantly charges to inside electric capacity through oscillation generator output pulse analog switch S1, S2 and inverted phase oscillator. In fig. 1, VDD and GND pins are respectively connected to the positive and negative electrodes of a power supply, the EN pin detects the level, if the circuit is at a design voltage, the circuit will not work, if the circuit works in a reasonable working voltage interval, the oscillator outputs pulse analog switches S1 and S2 and an inverter oscillator to continuously charge an internal capacitor, and the oscillator outputs pulse frequency through a comparison circuit, and the pulse frequency is controlled to be matched with a resistor voltage division value set by the FB pin, so that an ideal voltage value is set between OUT and GND. In fig. 2, the VIN pin is connected to the voltage input, and the GND pin is connected to the signal ground and the power ground. And the pin VOUT is connected with voltage output.
Example 2
A constant voltage battery energy management module device, similar to embodiment 1, except that the EN pin operates normally at a high level, with a working frequency of 1.5 MHz; and stopping the system when the EN is at a low level, wherein the quiescent current is less than l [ mu ] A, and the module is in a work stopping state.
It may also be preferred that the VDD pin is connected to the battery input voltage.
It may also be preferred that the SW pin is a switch pin and the inductor is connected between the SW pin and the VDD pin.
It may also be preferred that the GND pin is connected to signal ground and power ground.
It may also be preferred that the FB pin is connected to a feedback input of a differential amplifier, with the resistor divider taps connected to the FB pin.
It may also be preferred that the output voltage is 2.5V-5V.
It may also be preferred that the OUT pin is connected to the output voltage, the sense input and to the drain of the internal synchronous rectifier MOSFET.
It may also be preferred that the GND pin is connected to signal ground and power ground.
The constant-voltage battery energy management module device can furthest excavate the residual electric quantity of the battery, stabilize the voltage and meet the power requirement of the instrument. The performance requirements for implementation are as shown in table one:
table one:
| serial number | Item | Standard of | Test method | |
| 1 | Open circuit voltage | ≥3.6V | Testing using a |
|
| 2 | Rapid discharge voltage | The discharge current is 200mA, and the voltage is more than or equal to 3.3V | Continuously discharging at constant current of 200mA at the ambient temperature of 23 +/-3 ℃ until the current is lower than
3.3 |
|
| 3 | Standard discharge voltage | The discharge current is 100mA, and the voltage is more than or equal to 3.3V | Under the condition of the ambient temperature of 23 +/-3 ℃, the constant current of 100mA is continuously discharged and continuously discharged to electricity
Flow less than 3.3 |
|
| 4 | Low temperature testing | Rapid discharge at low temperature, standard discharge, the voltage is more than or equal to 3.3V | Under the condition of ambient temperature of-20 +/-3 ℃, constant current of 100mA is continuously discharged and continuously discharged to
The current is lower than 3.3 |
|
| 5 | High temperature testing | Rapid discharge at low temperature, standard discharge, the voltage is more than or equal to 3.3V | Under the condition of 85 +/-3 ℃ of ambient temperature, the constant current of 100mA is continuously discharged and continuously discharged to electricity Flow less than 3.3V |
Referring to fig. 4 and 5, it can be seen that the time for the battery to discharge to 3.3V at 60mA current is only 170 hours before the module is not used, the time for the battery to discharge to 3.3V at 60mA current is 530 hours after the module is installed, and the 3-efficient battery energy management module is characterized in that: (1) the adaptive voltage range is high: the input voltage of the module is 1.5V-4.0V, the output voltage is stable and does not change along with the load, and the final voltage is 3.6V; (2) the working voltage is stable: the voltage is extremely stable during the operation of the module. More than 90% of battery capacity can be stably output on a 3.6V voltage platform; (3) the output current is stable: the voltage is stabilized at 3.6V during the module work, and the current is maximally stabilized to output 200 mA.
Although the invention has been described in detail above with reference to a general description and specific examples, it will be apparent to one skilled in the art that modifications or improvements may be made thereto based on the invention. Accordingly, such modifications and improvements are intended to be within the scope of the invention as claimed.
Claims (9)
1. A constant-voltage battery energy management module device comprises an outer shell (1), wherein an outlet plug (2) and an inlet plug (3) are installed on the outer shell (1), and a circuit board is installed in the outer shell (1), and is characterized in that a battery energy management module and a peripheral circuit module are arranged on the circuit board, a VDD pin of the battery energy management module is connected with a first end of a soft start module, the VDD pin is connected with an EN pin, the VDD pin is connected with an OUT pin, the EN pin is connected with a close control module, the EN pin is connected with a GND pin, the GND pin is grounded, a second end of the soft start module is connected with an A end of a selector, a B end of the selector is connected with a third end of a PWM control module, the third end of the selector is connected with an output end of an output comparator, a fourth end of the selector is connected with a first end of a synchronous drive module, and the first end of the PWM control module is connected with a first end of a generator, the second end of the PWM control module is connected with the output end of the comparator, the second end of the generator is connected with the first end of the triangular wave compensator, the second end of the triangular wave compensator is connected with the first end of the integrator, the third end of the triangular wave compensator is connected with the negative electrode of the comparator, the second end of the integrator is connected with the positive electrode of the comparator, the third end of the integrator is connected with the ground, the third end of the integrator is connected with the source electrode of the second MOSFET, the drain electrode of the second MOSFET is connected with the drain electrode of the first MOSFET, the gate electrode of the second MOSFET is connected with the third end of the synchronous driver, the second end of the synchronous driver is connected with the gate electrode of the first MOSFET, the source electrode of the first MOSFET is connected with the positive electrode of the output comparator and the OUT pin, the drain electrode of the first MOSFET is connected with the SW pin, the OUT pin is connected with the SW pin, the SW pin is connected with the FB pin, the FB pin is connected with the GND pin, the first end of the FB pin is connected with the first end of the error device, and the second end of the error device is connected with the 1.203V end, the output end of the error device is connected with the cathode of the diode, the anode of the diode is grounded, the anode of the diode is connected with the GND pin, the output end of the error device is grounded through a second capacitor, the second capacitor is connected with the GND pin, the output end of the error device is connected with the first end of a first capacitor through a first resistor, the second end of the first capacitor is grounded, the second end of the first capacitor is connected with the GND pin, and the output end of the error device is connected with the cathode of the comparator.
2. The constant voltage battery energy management module of claim 1 wherein the peripheral circuit is a VDD pin connected to the VIN voltage input of the power supply and to one end of an inductor, the other end of the inductor connected to a SW1 pin and to the anode of a diode, the cathode of the diode connected to the upper end of a resistor R1, the cathode of the diode connected to the upper end of a capacitor C1, the cathode of the diode connected to the anode of a polar capacitor C2, the cathode of the diode connected to the output voltage VOUT; the lower end of the resistor R1 is connected with the upper end of the resistor R2, the lower end of the resistor R1 is connected with the pin FB3, and the lower end of the resistor R1 is connected with the lower end of the capacitor C1; the lower end of the electron R2 is connected with the ground; the negative electrode of the polarity capacitor C2 is connected with the ground; the pin GND is connected with the ground; the EN pin is connected with the GND pin.
3. The constant voltage battery energy management module apparatus of claim 2, wherein the EN pin operates normally at a high level with an operating frequency of 1.5 MHz; and stopping the system when the EN is at a low level, wherein the quiescent current is less than l [ mu ] A, and the module is in a work stopping state.
4. The constant voltage battery energy management module apparatus of claim 3, wherein the VDD pin is connected to the battery input voltage.
5. The constant voltage battery energy management module apparatus of claim 4, wherein the SW pin is a switch pin and the inductor is connected between the SW pin and the VDD pin.
6. The constant voltage battery energy management module apparatus of claim 5, wherein the GND pin is connected to signal ground and power ground.
7. The constant voltage battery energy management module apparatus of claim 6, wherein the FB pin is connected to a feedback input of the differential amplifier, and the resistor divider tap is connected to the FB pin.
8. The constant voltage battery energy management module apparatus of claim 7, wherein the output voltage is 2.5V-5V.
9. The constant voltage battery energy management module apparatus of claim 8, wherein the OUT pin is connected to the output voltage, the sense input and to the drain of the internal synchronous rectifier MOSFET.
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