CN113746188A - Power supply system of wireless microphone - Google Patents
Power supply system of wireless microphone Download PDFInfo
- Publication number
- CN113746188A CN113746188A CN202010471687.2A CN202010471687A CN113746188A CN 113746188 A CN113746188 A CN 113746188A CN 202010471687 A CN202010471687 A CN 202010471687A CN 113746188 A CN113746188 A CN 113746188A
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- China
- Prior art keywords
- super capacitor
- capacitor battery
- charging
- battery
- circuit
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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
- H02J7/34—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
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R1/00—Details of transducers, loudspeakers or microphones
- H04R1/08—Mouthpieces; Microphones; Attachments therefor
Abstract
The embodiment of the invention provides a power supply system of a wireless microphone, which comprises: the system comprises a super capacitor battery, a power management circuit, a microphone working circuit and a charging socket; the super capacitor battery is electrically connected with the power management circuit, and the power management circuit is connected with the microphone working circuit and the charging socket; the charging socket is used for charging the super capacitor battery through the power management circuit after being connected with an external charging power supply; the super capacitor battery is used for supplying power to the microphone working circuit; the microphone working circuit is used for providing all functions of the wireless microphone. The power supply system of the wireless microphone provided by the embodiment of the invention uses the super capacitor battery as the power supply, and the super capacitor battery can work for a long time after being charged for a short time without replacing the battery, so that a battery seat for installing the battery is not required to be arranged in the wireless microphone, and the structure of the wireless microphone is simplified.
Description
Technical Field
The invention relates to the technical field of wireless microphones, in particular to a power supply system of a wireless microphone.
Background
The wireless microphone is not provided with a wire, and modulates the audio signal of the sound pick-up to a radio frequency signal through the wireless transmitting unit to be transmitted out, and demodulates the received radio frequency signal into the audio signal through the receiving unit. Therefore, the wireless microphone must have its own power source to supply energy to drive the operation circuit of the wireless microphone to operate.
Current wireless microphone power supply systems typically include: the device comprises a common battery or a rechargeable battery and a working circuit, wherein the common battery or the rechargeable battery supplies power for the working circuit.
When the common battery or the rechargeable battery is used, when the battery runs out, the battery needs to be detached and replaced with a new battery or a fully charged battery, so a battery holder for mounting the battery is generally required to be arranged in the wireless microphone, so that the battery is detached and replaced, the structure of the wireless microphone is complex, and the reliability is reduced.
Disclosure of Invention
An embodiment of the present invention provides a power supply system for a wireless microphone, so as to simplify a structure of the wireless microphone. The specific technical scheme is as follows:
the embodiment of the invention provides a power supply system of a wireless microphone, which comprises: the system comprises a super capacitor battery, a power management circuit, a microphone working circuit and a charging socket;
the super capacitor battery is used for supplying power to the microphone working circuit through the power management circuit;
the super capacitor battery is electrically connected with the power management circuit, and the power management circuit is connected with the microphone working circuit and the charging socket;
the charging socket is used for connecting an external charging circuit of the wireless microphone with the inside, and after the external charging power supply is connected, the super capacitor battery is charged through the power supply management circuit;
the super capacitor battery is arranged at the handle position of the radio microphone and is positioned in the shell of the radio microphone.
The positive electrode and the negative electrode of the super capacitor battery are connected with the power supply management circuit, and the power supply management circuit is connected with the positive electrode and the negative electrode of the power supply of the microphone working circuit;
the system further comprises: a charging socket;
the charging socket can be connected with an external charging power supply, and the charging socket is arranged at the bottom of the handle shell of the wireless microphone.
The power supply system of the wireless microphone is characterized in that the power management circuit is used for detecting the electric energy and the electric quantity of the super capacitor battery and displaying the current electric energy capacity of the super capacitor battery.
The power supply system of the wireless microphone is characterized in that the power management circuit is used for cutting off the connection between the super capacitor battery and other circuits when the voltage of the super capacitor battery reaches the lowest allowable voltage.
The power supply system of the wireless microphone is characterized in that the power supply management circuit is used for controlling the charging to be charged with the charging current allowed by the super capacitor battery when the charging current of the external charging circuit is larger than the current allowed by the super capacitor battery when the charging socket of the base is connected with an external charging power supply and charges the super capacitor battery; the allowable current is: less than or equal to the maximum allowable current of the super capacitor battery.
The power supply system of the wireless microphone is characterized in that the power supply management circuit is used for controlling the charging circuit to stop charging the super capacitor battery when the super capacitor battery is charged by connecting a charging socket of the base with an external charging power supply and when the voltage on the super capacitor battery is greater than the allowed voltage of the super capacitor battery; the allowed voltage is: a maximum allowable voltage of the super capacitor battery.
The power supply system of the wireless microphone is characterized in that the power management circuit is used for ensuring that the external charging power supply can work in positive and negative polarity when the charging socket of the base is connected with the external charging power supply and charges the super capacitor battery, and a full-bridge circuit is arranged between the charging socket and the power management circuit.
The power supply system of the wireless microphone provided by the embodiment of the invention comprises: the system comprises a super capacitor battery, a power management circuit, a microphone working circuit and a charging socket; the super capacitor battery is a wireless microphone working power supply and is used for supplying power to the microphone working circuit; the super capacitor battery is electrically connected with the power management circuit, and the power management circuit is connected with the microphone working circuit and the charging socket; the charging socket is used for charging the super capacitor battery through the power management circuit after being electrically connected with an external charging power supply.
The power supply system of the wireless microphone provided by the embodiment of the invention uses the super capacitor battery, does not need to replace the battery, is used as a permanent power supply and is directly welded or mechanically fixed on the wireless microphone circuit board; therefore, a battery holder for installing a battery is not required to be arranged in the wireless microphone, so that the structure of the wireless microphone is simplified; in the wireless microphone taking the battery or the rechargeable battery as the power supply, the battery seat is easily damaged or poor contact condition occurs when the battery is frequently replaced; the battery liquid in the battery overflows and corrodes the battery seat to cause working failure.
In addition, the microphone power supply system provided by the embodiment of the invention also has the following advantages:
1. the super capacitor is a novel energy storage device between a traditional capacitor and a storage battery, the specific capacity of the super capacitor is usually tens of times to hundreds of times of that of the traditional capacitor, the super capacitor is used as a battery, the charging and discharging times of the super capacitor can reach more than tens of thousands of times, the charging and discharging times of a common rechargeable battery are 500 times or higher due to the memory effect, the lithium battery has no memory effect, the charging and discharging times can reach thousands of times, but the price is expensive, and along with the increase of the charging times, the charging electric energy is reduced therewith, and the working time is reduced. The super capacitor battery has the characteristic of long service life, basically does not need to be replaced, can be used as a permanent part, saves a battery box and the like of a common wireless microphone powered by the battery, and has the price equivalent to that of a high-performance lithium battery, so the long-term use cost is greatly lower than that of various rechargeable batteries.
2. Because the super capacitor battery has the capacitance property, the super capacitor battery can be charged with large current, the charging of a common rechargeable battery needs several hours, and the super capacitor battery can be charged in several minutes to dozens of minutes. The wireless microphone works at low power, is particularly suitable for KTV stores, and can take tens of minutes for charging dozens of seconds when a song is requested.
3. Because the super capacitor battery has the capacitance property and has no memory effect, as long as the use limit of the highest voltage and the lowest voltage is not reached, the charging and the use are not limited, and the service life of the super capacitor battery is not influenced. However, the general rechargeable battery has a memory effect, and the battery runs out of power and then is charged fully.
4. The super capacitor battery has high capacity density which can reach 80-250 Ah/kg and is higher than that of a common rechargeable battery.
5. The super-capacitor battery has the same capacity density as the lithium battery, and does not need to be provided with protection circuits such as overcurrent and overheating and the like.
6. The working temperature of the super capacitor battery is better than that of a rechargeable battery, and the super capacitor battery can work at-40-60 ℃.
7. For example, a super capacitor battery is used for supplying power to the wireless microphone, the highest working voltage of the super capacitor battery is 3.4V, the capacity of the super capacitor battery is 2000 farads, and the wireless microphone with power consumption of 0.5 watt can be ensured to continuously work for more than 6 hours.
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 structural diagram of a power supply system of a wireless microphone according to an embodiment of the present invention.
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.
In order to simplify the structure of the wireless microphone, the embodiment of the invention provides a power supply system of the wireless microphone.
As shown in fig. 1, a power supply system of a wireless microphone according to an embodiment of the present invention includes: the system comprises a super capacitor battery 1, a power management circuit 2, a microphone working circuit 3 and a charging socket 4;
the super capacitor battery 1 is electrically connected with the power management circuit 2, and the power management circuit 2 is electrically connected with the microphone working circuit 3 and the charging socket 4;
the charging socket 4 is used for charging the super capacitor battery 1 after being electrically connected with an external charging power supply;
the super capacitor battery 1 is used for supplying power to the microphone working circuit 3;
the power supply system of the wireless microphone provided by the embodiment of the invention uses the super capacitor battery 1 as a power supply, and the super capacitor battery 1 can work for a long time after being charged for a short time, so that the power supply system has the characteristics of long service life, high performance and the like, and a battery seat for installing the battery is not required to be arranged in the wireless microphone due to the fact that the battery is not required to be replaced, so that the structure of the wireless microphone is simplified.
In addition, the microphone power supply system provided by the embodiment of the invention also has the following advantages:
1. the charge and discharge frequency can reach ten thousand to dozens of thousand, the charge and discharge frequency of a general rechargeable battery is 500 or more due to the memory effect, the lithium battery has no memory effect, and the charge and discharge frequency can reach thousands of times, but the price is high. The super capacitor battery 1 has the characteristic of long service life, basically does not need to be replaced, can be used as a permanent part, saves a battery box and the like of a common wireless microphone powered by a battery, and has the price equivalent to that of a high-performance lithium battery, so the long-term use cost is greatly lower than that of various rechargeable batteries.
2. Because the super capacitor battery 1 has the capacitance property, the super capacitor battery can be charged with large current, generally, the charging of the super capacitor battery can be completed within several hours, and the super capacitor battery can be charged within 1 to more than ten minutes. The wireless microphone works at low power, is particularly suitable for KTV stores, and can take tens of minutes for charging dozens of seconds when a song is requested.
3. Because the super capacitor battery 1 has the capacitance property and has no memory effect, as long as the use limit of the highest voltage and the lowest voltage is not reached, no limit is provided for charging and using, and the service life of the super capacitor battery 1 is not influenced by irregular intermittent charging, working, recharging and working. However, the general rechargeable battery has a memory effect, and the battery runs out of power and then is charged fully.
4. The super capacitor battery 1 has high capacity density which can reach 80Ah-250Ah/kg and is higher than that of a common rechargeable battery.
5. The super capacitor battery 1 is safe, the capacity density is equivalent to that of a lithium battery, but no protection such as overcurrent and overheating is needed.
6. The working temperature of the super capacitor battery 1 is better than that of a rechargeable battery, and the super capacitor battery can work at-40 ℃ to +60 ℃.
In one embodiment, the charging circuit 4 is mounted on a handle base of a radio microphone, the charging circuit 4 being located within a housing of the radio microphone.
In one embodiment, the super capacitor battery 1 is installed at the handle position of the radio microphone, and the super capacitor battery 1 is positioned in the shell of the radio microphone.
In one embodiment, the positive electrode and the negative electrode of the super capacitor battery 1 are connected with the power management circuit 2, and the power management circuit 2 is connected with the microphone working circuit 3;
in one embodiment, the power management circuit 2 is configured to control the charging circuit 4 to stop charging the super capacitor battery 1 when the charging current of the external charging circuit is greater than the allowable current of the super capacitor battery when the charging circuit is connected to an external charging power source through a charging socket of the base and charges the super capacitor battery; the allowable current is: less than or equal to the maximum allowed current of the supercapacitor cell 1.
In one embodiment, the power management circuit 2 is configured to control the charging circuit 4 to stop charging the super capacitor battery 1 when the voltage on the super capacitor battery is greater than the allowed voltage of the super capacitor battery when the super capacitor battery is connected to an external charging power source through a charging socket of the base and is charged to the super capacitor battery; the allowed voltage is: the maximum allowed voltage of the supercapacitor cell 1.
In an embodiment, the power management circuit 2 is configured to have a full bridge circuit between the charging socket and the power management circuit when the charging socket of the base is connected to an external charging power source and charges the super capacitor battery, so as to ensure that the external charging power source can work when the polarity of the external charging power source is positive or negative.
In one embodiment, the power management circuit is configured to issue an under-voltage alarm when the super capacitor battery is under-voltage (approaching a minimum allowable voltage).
In one embodiment, the power management circuit 2 is configured to disconnect the super capacitor battery from other circuits when the super capacitor battery voltage reaches a minimum allowable voltage.
In an embodiment, the power management circuit 2 may be further configured to obtain a real-time capacity of the super capacitor battery, and send the real-time capacity to a display device of a wireless microphone, so that the display device displays the real-time capacity of the super capacitor battery.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
The above description is only for the preferred embodiment of the present invention, and is not intended to limit the scope of the present invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention shall fall within the protection scope of the present invention.
Claims (10)
1. A power supply system for a wireless microphone, comprising: the system comprises a super capacitor battery, a power management circuit, a microphone working circuit and a charging socket;
the super capacitor battery is connected with the power management circuit, and the power management circuit is connected with the microphone working circuit and the charging socket;
the charging socket is used for charging the super capacitor battery through the power management circuit after being electrically connected with external charging;
the super capacitor battery is used for supplying power to the microphone working circuit.
2. The system of claim 1, wherein the super capacitor battery is mounted at a handle location of the wireless microphone, the super capacitor battery being located within a housing of the wireless microphone.
3. The system of claim 1, wherein the super capacitor battery has a positive electrode and a negative electrode electrically connected to the power management circuit, and is connected to the microphone operating circuit through the power management circuit.
4. The system for supplying power to a wireless microphone according to claim 1, further comprising: a charging socket; the charging socket is installed on a handle base of the wireless microphone, and the charging power supply circuit is located outside a shell of the wireless microphone and connected with the wireless microphone through the charging socket.
5. The system of claim 1, wherein the power management circuit is configured to detect a power capacity of the super capacitor battery and display a current power capacity of the super capacitor battery.
6. The system of claim 1, wherein the power management circuit is configured to issue an under-voltage alarm when the super capacitor battery is under-voltage (approaching a minimum allowable voltage).
7. The system of claim 1, wherein the power management circuit is configured to disconnect the super capacitor battery from other circuits when the super capacitor battery voltage reaches a minimum allowable voltage.
8. The system of claim 1, wherein the power management circuit is configured to control the charging to be performed at a charging current allowed by the super capacitor battery when the charging current of the external charging circuit is greater than a charging current allowed by the super capacitor battery when the external charging circuit is connected to an external charging power source through a charging socket of the base and charges the super capacitor battery; the allowable current is: less than or equal to the maximum allowable current of the super capacitor battery.
9. The system of claim 1, wherein the power management circuit is configured to control the charging circuit to stop charging the super capacitor battery when the voltage across the super capacitor battery is greater than the allowed voltage of the super capacitor battery when the super capacitor battery is connected to an external charging power source through a charging socket of the base and charges the super capacitor battery; the allowed voltage is: a maximum allowable voltage of the super capacitor battery.
10. The system of claim 1, wherein the power management circuit is configured to have a full bridge circuit between the charging socket and the power management circuit when the charging socket of the base is connected to an external charging source and charges the super capacitor battery, so as to ensure that the external charging source can work when the polarity of the external charging source is positive or negative.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010471687.2A CN113746188A (en) | 2020-05-29 | 2020-05-29 | Power supply system of wireless microphone |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010471687.2A CN113746188A (en) | 2020-05-29 | 2020-05-29 | Power supply system of wireless microphone |
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| CN113746188A true CN113746188A (en) | 2021-12-03 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010471687.2A Pending CN113746188A (en) | 2020-05-29 | 2020-05-29 | Power supply system of wireless microphone |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203104715U (en) * | 2012-11-05 | 2013-07-31 | 蚌埠市智峰科技有限公司 | Charging type microphone device |
| CN205753568U (en) * | 2016-07-15 | 2016-11-30 | 成都闪虎新能源科技有限公司 | A kind of elevator five side's intercom system back-up source using ultracapacitor |
| CN205961359U (en) * | 2016-04-26 | 2017-02-15 | 赵青莹 | Rock microphone that electricity generation supplyed electric energy |
| WO2017148252A1 (en) * | 2016-03-01 | 2017-09-08 | 甘肃省电力公司风电技术中心 | Control method and control system for enhancing endurance to anomalous voltage for doubly-fed induction generator |
| CN110177477A (en) * | 2016-11-22 | 2019-08-27 | 莱战略控股公司 | Rechargeable lithium ion batteries for aerosol delivery equipment |
-
2020
- 2020-05-29 CN CN202010471687.2A patent/CN113746188A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203104715U (en) * | 2012-11-05 | 2013-07-31 | 蚌埠市智峰科技有限公司 | Charging type microphone device |
| WO2017148252A1 (en) * | 2016-03-01 | 2017-09-08 | 甘肃省电力公司风电技术中心 | Control method and control system for enhancing endurance to anomalous voltage for doubly-fed induction generator |
| CN205961359U (en) * | 2016-04-26 | 2017-02-15 | 赵青莹 | Rock microphone that electricity generation supplyed electric energy |
| CN205753568U (en) * | 2016-07-15 | 2016-11-30 | 成都闪虎新能源科技有限公司 | A kind of elevator five side's intercom system back-up source using ultracapacitor |
| CN110177477A (en) * | 2016-11-22 | 2019-08-27 | 莱战略控股公司 | Rechargeable lithium ion batteries for aerosol delivery equipment |
Non-Patent Citations (1)
| Title |
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| 上海市电机工程学会: "新编电工问答2200例", 上海科学技术出版社, pages: 870 - 871 * |
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