CN110943518A - Heavy current discharge circuit of battery power supply equipment - Google Patents
Heavy current discharge circuit of battery power supply equipment Download PDFInfo
- Publication number
- CN110943518A CN110943518A CN201911410107.2A CN201911410107A CN110943518A CN 110943518 A CN110943518 A CN 110943518A CN 201911410107 A CN201911410107 A CN 201911410107A CN 110943518 A CN110943518 A CN 110943518A
- Authority
- CN
- China
- Prior art keywords
- type transistor
- pin
- control switch
- switch
- charging
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000003990 capacitor Substances 0.000 claims abstract description 37
- 238000004146 energy storage Methods 0.000 claims abstract description 33
- 230000005669 field effect Effects 0.000 claims description 8
- 238000007599 discharging Methods 0.000 abstract description 9
- 238000004891 communication Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- YBDACTXVEXNYOU-UHFFFAOYSA-N C(F)(F)(F)F.[Li] Chemical compound C(F)(F)(F)F.[Li] YBDACTXVEXNYOU-UHFFFAOYSA-N 0.000 description 1
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 1
- GJCNZQUZWSHFHP-UHFFFAOYSA-N [Li].O=S=O Chemical compound [Li].O=S=O GJCNZQUZWSHFHP-UHFFFAOYSA-N 0.000 description 1
- KLARSDUHONHPRF-UHFFFAOYSA-N [Li].[Mn] Chemical compound [Li].[Mn] KLARSDUHONHPRF-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 229910052744 lithium Inorganic materials 0.000 description 1
- 229910001416 lithium ion Inorganic materials 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
Images
Classifications
-
- 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
-
- 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
- H02J7/0068—Battery or charger load switching, e.g. concurrent charging and load supply
-
- 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
- H02J7/34—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering
- H02J7/345—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering using capacitors as storage or buffering devices
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The invention discloses a high-current discharge circuit of battery power supply equipment, which effectively relieves the capacity pressure of a battery and enables the battery to realize a high-current discharge function under a low-temperature condition. The device comprises a discharge control switch 6N1, an anti-capacitance reverse charging switch 6N2, a discharge control switch 6N3, a charge control switch 6N4 and an energy storage capacitor; the output end of the control circuit is respectively connected with the grid of the N-type transistor of each control switch; the source (pin 2) of the N-type transistor of the discharge control switch 6N1 is connected with a power supply, and the drain of the P-type transistor is connected with a heavy current load; the source electrode of a P-type transistor of the charging control switch 6N4 is connected with a power supply, and the drain electrode is connected with an energy storage capacitor; the drain electrode of a P-type transistor of the anti-capacitor reverse charging switch 6N2 is connected with the energy storage capacitor, and the source electrode of the P-type transistor is connected with the source electrode of the discharging control switch 6N 3; the drain of the P-type transistor of the discharge control switch 6N3 is connected to the large-current load, and the drain of the P-type transistor of the discharge control switch 6N1 is also connected.
Description
Technical Field
The invention relates to the technical field of electronics and communication, in particular to a high-current discharge circuit of battery power supply equipment.
Background
With the continuous development of communication equipment, handheld equipment is applied more and more, and the functions of handheld equipment are also stronger and stronger, and the application with high current consumption in various applications puts forward more and more rigorous requirements on the power supply of the handheld equipment.
Generally, the handheld device is powered by a battery, which is limited by the battery capacity and the volume requirement, and the battery is usually designed according to the maximum capacity of the same volume, which often limits the large-current discharge capacity of the battery. Most of secondary batteries that present hand-held equipment adopted are lithium ion batteries, the primary battery who adopts contains lithium subcell, lithium carbon fluoride battery, lithium manganese battery, lithium sulfur dioxide battery etc. the heavy current discharge capacity of this type of battery is relevant with the capacity of battery, then 0.1C discharges for a short time, then 2C discharges for a long time, can satisfy heavy current discharge's demand basically under the normal atmospheric temperature state, nevertheless because of the battery capacity descends under the low temperature condition, the ability of heavy current discharge is not enough to lead to hand-held equipment's operating temperature scope to be restricted.
Disclosure of Invention
Aiming at the problems in the prior art, the invention aims to provide a high-current discharge circuit of a battery power supply device, which can effectively relieve the capacity pressure of a battery, ensure that the battery can realize a high-current discharge function under a low-temperature condition, expand the working temperature of a handheld device and prolong the working time of the handheld device.
In order to achieve the purpose, the invention is realized by adopting the following technical scheme.
A large-current discharge circuit of battery power supply equipment comprises a discharge control switch 6N1, a capacitance-preventing reverse-charging switch 6N2, a discharge control switch 6N3, a charging control switch 6N4 and an energy storage capacitor;
the discharge control switch 6N1 is connected to a control circuit, and the output end of the control circuit is connected to the N-type transistor gate (pin 1) of the discharge control switch 6N1, and is used for controlling the input voltage of the N-type transistor gate; the source (pin 2) of the P-type transistor of the discharge control switch 6N1 is connected with a power supply, the gate (pin 3) of the P-type transistor of the discharge control switch 6N1 is connected with the power supply through a resistor, the drain (pin 6) of the N-type transistor of the discharge control switch 6N1 is connected with the gate (pin 3) of the P-type transistor through a resistor, and the drain (pin 4) of the P-type transistor of the discharge control switch 6N1 is connected with a high-current load;
the N-type transistor gate (pin 1) of the charging control switch 6N4 is connected with the output end of the control circuit, the P-type transistor source (pin 2) of the charging control switch 6N4 is connected with a power supply, the P-type transistor gate (pin 3) of the charging control switch 6N4 is connected with the power supply through a resistor, the N-type transistor drain (pin 6) of the charging control switch 6N4 is connected with the P-type transistor gate (pin 3) through a resistor, and the P-type transistor drain (pin 4) of the charging control switch 6N4 is connected with the energy storage capacitor;
an N-type transistor gate (pin 1) of the anti-capacitance anti-charging switch 6N2 is connected with an output end of the control circuit, a P-type transistor drain (pin 4) of the anti-capacitance anti-charging switch 6N2 is connected with the energy storage capacitor, a P-type transistor source (pin 2) of the anti-capacitance anti-charging switch 6N2 is connected with a P-type transistor source (pin 2) of the discharge control switch 6N3, a P-type transistor gate (pin 3) of the anti-capacitance anti-charging switch 6N2 is connected with the energy storage capacitor through a resistor, and an N-type transistor drain (pin 6) of the anti-capacitance anti-charging switch 6N2 is connected with the P-type transistor gate (pin 3) through a resistor;
the N-type transistor gate (pin 1) of the discharge control switch 6N3 is connected with the output end of the control circuit, the P-type transistor gate (pin 3) of the discharge control switch 6N3 is connected with the P-type transistor source (pin 2) of the anti-capacitance anti-charging switch 6N2 through a resistor, the N-type transistor drain (pin 6) of the anti-capacitance anti-charging switch 6N2 is connected with the P-type transistor gate (pin 3) through a resistor, and the P-type transistor drain (pin 4) of the discharge control switch 6N3 is connected with a high-current load; the drain (pin 4) of the P-type transistor of the discharge control switch 6N3 is also connected to the drain (pin 4) of the P-type transistor of the discharge control switch 6N 1.
The technical scheme of the invention has the characteristics and further improvements that:
the discharging control switch 6N1, the anti-capacitance reverse charging switch 6N2, the discharging control switch 6N3 and the charging control switch 6N4 are MOS type field effect transistors IRF5851 respectively.
A plurality of resistors which are connected in parallel are connected in series between the 4 feet of the charging control switch 6N4 and the energy storage capacitor.
Compared with the prior art, the invention has the beneficial effects that:
the high-current discharge circuit of the battery power supply equipment effectively relieves the capacity pressure of the battery, so that the battery can realize a high-current discharge function under a low-temperature condition, and the capacity of the battery is larger than that of the battery discharged by high current during low-current discharge; the high-current discharge circuit is applied to the handheld equipment, so that the working temperature of the handheld equipment is expanded, and the working time of the handheld equipment is prolonged.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic circuit diagram of a high current discharge circuit of a battery powered device according to the present invention;
fig. 2 is a schematic diagram of a MOS field effect transistor IRF 5851.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Aiming at the problems in the prior art, the large-current application state of the handheld device is analyzed, and the fact that the large-current application state of the handheld device is often applied and has the advantages of large working current and short time is found. The solution provided by the invention firstly needs to determine the discharge time and discharge current of heavy current discharge, simultaneously needs to determine the charging current and charging time of the energy storage capacitor, and combines with the control circuit of the handheld device to complete the charging of the energy storage capacitor before the heavy current discharge, and the energy storage capacitor and the battery discharge together when the heavy current discharge.
The energy storage capacitor is charged and discharged according to different time lengths and different current sizes, and two paths are adopted for charging and discharging of the energy storage capacitor: the charging adopts a long-time low-current mode, and the discharging adopts a short-time high-current mode. The battery power supply and the energy storage capacitor discharge two paths for power supply, the battery power supply is adopted for conventional power supply, the energy storage capacitor is added for discharging on the basis of the battery power supply when heavy current is discharged, the battery power supply and the energy storage discharge paths are in short circuit at the port of the heavy current discharge unit and need to be isolated, the voting circuit adopting two diodes can complete the function, the consumption of the diodes is too large and cannot be applied, therefore, an anti-reverse charge switch is added behind the energy storage capacitor, and the energy storage capacitor cannot be charged when the battery is independently supplied with power.
Specifically, referring to fig. 1, the present invention provides a large current discharge circuit of a battery power supply device, which includes a discharge control switch 6N1, a capacitance-preventing reverse-charging switch 6N2, a discharge control switch 6N3, a charge control switch 6N4, and an energy storage capacitor;
the discharge control switch 6N1 is connected to a control circuit, and the output end of the control circuit is connected to the N-type transistor gate (pin 1) of the discharge control switch 6N1, and is used for controlling the input voltage of the N-type transistor gate; the source (pin 2) of the P-type transistor of the discharge control switch 6N1 is connected with a power supply, the gate (pin 3) of the P-type transistor of the discharge control switch 6N1 is connected with the power supply through a resistor, the drain (pin 6) of the N-type transistor of the discharge control switch 6N1 is connected with the gate (pin 3) of the P-type transistor through a resistor, and the drain (pin 4) of the P-type transistor of the discharge control switch 6N1 is connected with a high-current load;
the N-type transistor gate (pin 1) of the charging control switch 6N4 is connected with the output end of the control circuit, the P-type transistor source (pin 2) of the charging control switch 6N4 is connected with a power supply, the P-type transistor gate (pin 3) of the charging control switch 6N4 is connected with the power supply through a resistor, the N-type transistor drain (pin 6) of the charging control switch 6N4 is connected with the P-type transistor gate (pin 3) through a resistor, and the P-type transistor drain (pin 4) of the charging control switch 6N4 is connected with the energy storage capacitor;
an N-type transistor gate (pin 1) of the anti-capacitance anti-charging switch 6N2 is connected with an output end of the control circuit, a P-type transistor drain (pin 4) of the anti-capacitance anti-charging switch 6N2 is connected with the energy storage capacitor, a P-type transistor source (pin 2) of the anti-capacitance anti-charging switch 6N2 is connected with a P-type transistor source (pin 2) of the discharge control switch 6N3, a P-type transistor gate (pin 3) of the anti-capacitance anti-charging switch 6N2 is connected with the energy storage capacitor through a resistor, and an N-type transistor drain (pin 6) of the anti-capacitance anti-charging switch 6N2 is connected with the P-type transistor gate (pin 3) through a resistor;
the N-type transistor grid (pin 1) of the discharge control switch 6N3 is connected with the output end of the control circuit, the P-type transistor grid (pin 3) of the discharge control switch 6N3 is connected with the P-type transistor source (pin 2) of the anti-capacitance anti-charging switch 6N2 through a resistor, the N-type transistor drain (pin 6) of the anti-capacitance anti-charging switch 6N2 is connected with the P-type transistor grid (pin 3) through a resistor, and the P-type transistor drain (pin 4) of the discharge control switch 6N3 is connected with a high-current load.
The discharging control switch 6N1, the anti-capacitance reverse charging switch 6N2, the discharging control switch 6N3 and the charging control switch 6N4 respectively adopt MOS type field effect transistors IRF 5851.
Referring to fig. 2, an MOS field effect transistor IRF5851 is a circuit constructed by using the principle that a gate of an MOS transistor controls the on/off of a source and a drain of the MOS transistor, and includes two transistors, i.e., an N-channel transistor and a P-channel transistor, wherein the source of the N-channel transistor is grounded (pin 5), the gate (pin 1) is turned on when the voltage is greater than a certain value, and the drain (pin 6) is connected to a power supply; the source (pin 2) of the P-channel transistor is connected with a power supply, and the voltage of the grid (pin 3) is lower than the source (pin 2) by a certain voltage and then the P-channel transistor is conducted; referring to fig. 2, when the input port is connected to a voltage, to ensure the conduction of the P-channel transistor, the voltage is applied to the pin 1 to a certain value to turn on the N-channel transistor, and the pin 3 is grounded to satisfy the conduction condition of the P-channel transistor, so that the whole circuit is turned on. On the contrary, when the pin 1 input voltage does not satisfy the N-channel transistor turn-on condition, the pin 3 is connected to R3 and the input restores the initial condition, and the whole circuit is turned off.
The input and output ports of the MOS type field effect transistor IRF5851 control switch shown in FIG. 2 are connected in series between a power supply and a load, the output is influenced through the control port of the MOS type field effect transistor IRF5851 to achieve the function of controlling the on-off of the power supply, the grounding port of the MOS type field effect transistor IRF5851 control switch is connected with the power ground inside the adapter box to achieve the purpose of simplifying the circuit, and the impedance of a power line used in the manufacture of the switch part is reduced as much as possible at the input and output parts so as to reduce the voltage difference and improve the stability and the sensitivity of the switch part.
In the high-current discharge circuit, on-off selection of each switch is completed through control of the control circuit, and the switch has the advantages of small on-resistance, high switching speed and the like.
The 6N2 adopts the switch as a capacitance-preventing reverse-charging switch, when a power supply supplies power, namely a battery supplies power, the voltage reaches a pin 2 through a pin 4 of the 6N3, and the voltage is reduced by 0.2V, so that the voltage of a pin 2 of the capacitance-preventing reverse-charging switch 6N2 is reduced by 0.2V from the power supply voltage; because the anti-reverse charge switch is at a low level, the voltage cannot reach the 4 feet of the anti-capacitance anti-reverse charge switch 6N 2; if the anti-reverse charging switch is at a high level, the voltage reaches the 4 pins of the anti-capacitance anti-reverse charging switch 6N2, namely the battery charges the energy storage capacitor; because the resistance of the path is small and the capacitance value of the energy storage capacitor is large, the charging current is large, and the problems are prevented by a control circuit.
When the handheld device is normally applied, the discharge control switch 6N1 is set high, the anti-capacitance reverse charging switch 6N2 is set low, at the moment, the heavy current is loaded with electricity, meanwhile, the battery can be prevented from charging the energy storage capacitor, and the device works in a low current mode; when large current is needed to discharge, the control end raises the charging control switch 6N4 in advance to charge the energy storage capacitor in advance, the discharging control switch 6N1 is raised during large current discharge, the capacitor anti-charging switch 6N2 is raised, and at the moment, the battery and the energy storage capacitor are discharged simultaneously.
The high-current discharge circuit of the battery power supply equipment can be applied to the high-current discharge requirement of the handheld equipment, can effectively relieve the capacity pressure of the battery, can effectively adapt to the battery application under the low-temperature environment condition, and simultaneously, the capacity of the battery during low-current discharge is larger than that of the battery during high-current discharge.
In the operation process of the heavy-current discharge circuit of the battery power supply equipment, the calculation of the capacity of the energy storage capacitor needs to be paid attention to, the charge-discharge time of the capacitor is calculated according to parameters such as the discharge preparation time, the discharge time and the like, the charge current-limiting resistor is reasonably arranged, each resistor, capacitor and the like are ensured to be in a derating application state, and the polarity of the capacitor is ensured to be correct.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.
Claims (3)
1. A large-current discharge circuit of battery power supply equipment is characterized by comprising a discharge control switch 6N1, a capacitance-resistant reverse charging switch 6N2, a discharge control switch 6N3, a charging control switch 6N4 and an energy storage capacitor;
the discharge control switch 6N1 is connected to a control circuit, and the output end of the control circuit is connected to the N-type transistor gate (pin 1) of the discharge control switch 6N1, and is used for controlling the input voltage of the N-type transistor gate; the source (pin 2) of the P-type transistor of the discharge control switch 6N1 is connected with a power supply, the gate (pin 3) of the P-type transistor of the discharge control switch 6N1 is connected with the power supply through a resistor, the drain (pin 6) of the N-type transistor of the discharge control switch 6N1 is connected with the gate (pin 3) of the P-type transistor through a resistor, and the drain (pin 4) of the P-type transistor of the discharge control switch 6N1 is connected with a high-current load;
the N-type transistor gate (pin 1) of the charging control switch 6N4 is connected with the output end of the control circuit, the P-type transistor source (pin 2) of the charging control switch 6N4 is connected with a power supply, the P-type transistor gate (pin 3) of the charging control switch 6N4 is connected with the power supply through a resistor, the N-type transistor drain (pin 6) of the charging control switch 6N4 is connected with the P-type transistor gate (pin 3) through a resistor, and the P-type transistor drain (pin 4) of the charging control switch 6N4 is connected with the energy storage capacitor;
an N-type transistor gate (pin 1) of the anti-capacitance anti-charging switch 6N2 is connected with an output end of the control circuit, a P-type transistor drain (pin 4) of the anti-capacitance anti-charging switch 6N2 is connected with the energy storage capacitor, a P-type transistor source (pin 2) of the anti-capacitance anti-charging switch 6N2 is connected with a P-type transistor source (pin 2) of the discharge control switch 6N3, a P-type transistor gate (pin 3) of the anti-capacitance anti-charging switch 6N2 is connected with the energy storage capacitor through a resistor, and an N-type transistor drain (pin 6) of the anti-capacitance anti-charging switch 6N2 is connected with the P-type transistor gate (pin 3) through a resistor;
the N-type transistor gate (pin 1) of the discharge control switch 6N3 is connected with the output end of the control circuit, the P-type transistor gate (pin 3) of the discharge control switch 6N3 is connected with the P-type transistor source (pin 2) of the anti-capacitance anti-charging switch 6N2 through a resistor, the N-type transistor drain (pin 6) of the anti-capacitance anti-charging switch 6N2 is connected with the P-type transistor gate (pin 3) through a resistor, and the P-type transistor drain (pin 4) of the discharge control switch 6N3 is connected with a high-current load; the drain (pin 4) of the P-type transistor of the discharge control switch 6N3 is also connected to the drain (pin 4) of the P-type transistor of the discharge control switch 6N 1.
2. The large-current discharge circuit of battery power supply equipment according to claim 1, wherein said discharge control switch 6N1, anti-capacitive back-charging switch 6N2, discharge control switch 6N3 and charge control switch 6N4 are MOS type field effect transistors IRF5851, respectively.
3. The large current discharge circuit of battery power supply equipment according to claim 1, wherein a plurality of resistors connected in parallel with each other are connected in series between the drain (pin 4) of the P-type transistor of the charge control switch 6N4 and the energy storage capacitor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911410107.2A CN110943518A (en) | 2019-12-31 | 2019-12-31 | Heavy current discharge circuit of battery power supply equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911410107.2A CN110943518A (en) | 2019-12-31 | 2019-12-31 | Heavy current discharge circuit of battery power supply equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110943518A true CN110943518A (en) | 2020-03-31 |
Family
ID=69913187
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911410107.2A Pending CN110943518A (en) | 2019-12-31 | 2019-12-31 | Heavy current discharge circuit of battery power supply equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110943518A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112184969A (en) * | 2020-11-27 | 2021-01-05 | 山东艾琳智能科技有限公司 | Control system of power supply for intelligent lock |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20080009895A (en) * | 2006-07-25 | 2008-01-30 | 주식회사 만도 | Circuit for charging and discharging of smoothing capacitor |
| CN103887833A (en) * | 2012-12-20 | 2014-06-25 | 苏州能斯特新能源有限公司 | Control device suitable for lithium battery and supercapacitor composite power source |
| CN110611342A (en) * | 2019-07-22 | 2019-12-24 | 航宇救生装备有限公司 | Low-temperature pulse battery circuit for air-drop |
| CN211405533U (en) * | 2019-12-31 | 2020-09-01 | 陕西烽火电子股份有限公司 | Heavy current discharge circuit of battery power supply equipment |
-
2019
- 2019-12-31 CN CN201911410107.2A patent/CN110943518A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20080009895A (en) * | 2006-07-25 | 2008-01-30 | 주식회사 만도 | Circuit for charging and discharging of smoothing capacitor |
| CN103887833A (en) * | 2012-12-20 | 2014-06-25 | 苏州能斯特新能源有限公司 | Control device suitable for lithium battery and supercapacitor composite power source |
| CN110611342A (en) * | 2019-07-22 | 2019-12-24 | 航宇救生装备有限公司 | Low-temperature pulse battery circuit for air-drop |
| CN211405533U (en) * | 2019-12-31 | 2020-09-01 | 陕西烽火电子股份有限公司 | Heavy current discharge circuit of battery power supply equipment |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112184969A (en) * | 2020-11-27 | 2021-01-05 | 山东艾琳智能科技有限公司 | Control system of power supply for intelligent lock |
| CN112184969B (en) * | 2020-11-27 | 2021-03-12 | 山东艾琳智能科技有限公司 | Control system of power supply for intelligent lock |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| TWI683503B (en) | Battery charge and discharge management circuit and electronic device applying same | |
| JP7039773B2 (en) | Power system including battery pack | |
| CN103384076B (en) | Zero-v charging circuit for lithium battery protection and working method thereof | |
| DE602005001042D1 (en) | Implantable active medical device with telemetric RF circuit | |
| CN206099459U (en) | A activation circuit for battery management system | |
| CN105048422A (en) | Switch transistor voltage drop holding circuit and application of switch transistor voltage drop holding circuit in lithium battery protection circuit | |
| CN107565528A (en) | A kind of circuit structure for suppressing surge current | |
| CN105743067A (en) | Self-activation circuit and battery protection system with same | |
| CN211405533U (en) | Heavy current discharge circuit of battery power supply equipment | |
| CN207368709U (en) | A kind of battery 0V chargings and battery protection system | |
| CN110943518A (en) | Heavy current discharge circuit of battery power supply equipment | |
| CN103490474B (en) | A kind of electric power management circuit | |
| CN203660607U (en) | Rechargeable battery protection device using weak-current switch to control output | |
| CN106160124A (en) | The battery protection active circuit of portable power source and portable power source | |
| CN207896684U (en) | A kind of pulse activation and dormant circuit | |
| CN106533409B (en) | Zero power consumption control device of dust collection cup lithium battery | |
| CN212366898U (en) | Power supply control circuit and thermal printer | |
| CN214543716U (en) | Charging and discharging protection circuit of mobile terminal | |
| CN202014088U (en) | Overdischarge protector of solar power system storage battery | |
| CN205070409U (en) | Switch transistor pressure drop holding circuit and applied this pressure drop holding circuit's lithium battery protection circuit | |
| CN110854953B (en) | Battery charge-discharge protection circuit and battery device | |
| CN212231152U (en) | Voltage bootstrap chip, weak light acquisition circuit and equipment | |
| CN111987775A (en) | Power supply control circuit and thermal printer | |
| CN103855688A (en) | Leakage current protection circuit of battery | |
| CN116888851A (en) | Charging circuit and electronic equipment |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |