CN103167368A - Earphone compatible circuit and compatible earphones - Google Patents
Earphone compatible circuit and compatible earphones Download PDFInfo
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- CN103167368A CN103167368A CN2012100264246A CN201210026424A CN103167368A CN 103167368 A CN103167368 A CN 103167368A CN 2012100264246 A CN2012100264246 A CN 2012100264246A CN 201210026424 A CN201210026424 A CN 201210026424A CN 103167368 A CN103167368 A CN 103167368A
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Abstract
The invention relates to a compatible circuit, in particular to an earphone compatible circuit and compatible earphones. The compatible circuit comprises an automatic switching circuit used for automatically switching earphone jacks with various interface standards and signals sent by the earphones into receiving signals which are matched with each other. According to the earphone compatible circuit and the compatible earphones, the automatic switching circuit is used, the various earphone jacks are compatible, and therefore the earphones can be generally used for the earphone jacks with the various interface standards.
Description
Technical field
The present invention relates to a kind of compatible circuit, relate in particular to a kind of earphone compatible circuit and compatible with earphone.
Background technology
At present, the identical earphone jack of physical dimension of the terminal equipments such as computer, mobile phone, MP3, MP4, PSP has two kinds of interface standards, and corresponding earphone can only be supported a kind of interface standard simultaneously.Fig. 1 is the structural representation of existing headset plug end, and for a kind of earphone of standard wherein, the plug tip contact connects L channel, and in plug, ring 1 contact connects R channel, and in plug, ring 2 contacts connect transmitter, and the plug terminal contacts connects signal circuit; For the earphone of another standard, the plug tip contact connects L channel, and in plug, ring 1 contact connects R channel, and in plug, ring 2 contacts connect signal circuit, and the plug terminal contacts connects transmitter.Fig. 2 is the wiring schematic diagram of the earphone jack of present terminal, and wherein, 1 connects L channel, and 2 connect R channel, and 3 connect transmitter or signal circuit, and 4 connect signal circuit or transmitter, and 5 connect shell.By Fig. 1 and Fig. 2 as can be known, when the definition of the definition of the earphone jack of terminal and headset plug is inconsistent, be also, the transmitter of headset plug (MIC) is connected on the signal circuit (GND) of terminal equipment, the signal circuit of headset plug (GND) is connected on the transmitter signal of terminal equipment (MIC), the problem that earphone can't normally use can occur, make earphone not possess versatility.
Summary of the invention
Main purpose of the present invention is to provide a kind of earphone compatible circuit, is intended to solve present use with the earphone of terminal equipment distinct interface standard, the problem that earphone can't normally use can occur.
The present invention is achieved in that a kind of earphone compatible circuit, comprising:
Automatic switching circuit, be used for the signal of described distinct interface standard earphone jack and the transmission of described earphone is automatically converted to the reception signal that matches each other, the input of described automatic switching circuit is connected with left channel signals end, right-channel signals end, signal circuit end and the transmitter end of earphone jack respectively, and the output of described automatic switching circuit is connected respectively the microphone negative terminal and is connected with loudspeaker anode, loudspeaker negative terminal and the microphone anode of earphone.
In said structure, described compatible circuit also comprises:
Talk-listen switch is connected between the port that is connected with signal circuit end and transmitter end in automatic switching circuit, is used for controlling the break-make of phone.
Further, described talk-listen switch comprises:
Be connected in the switch S 11 between the port that is connected with signal circuit end and transmitter end in automatic switching circuit.
In said structure, described automatic switching circuit comprises:
the first end of described capacitor C 11 respectively with the signal circuit end of described earphone jack, the anode of diode D12, the anode of diode D13, the source class of the first end of resistance R 11 and NMOS pipe G11 connects, the second end of described capacitor C 11 respectively with the transmitter end of described earphone jack, the first end of the anode resistance R13 of diode D11, the anode of diode D14, the first end of resistance R 12, the source class of NMOS pipe G12, the first end of capacitor C 12 and microphone anode connect, the negative electrode of described diode D12 is connected with negative electrode and the resistance R 13 of diode D11 respectively, the negative electrode of described diode D13 is connected with the second end of resistance R 12 and the grid of NMOS pipe G12 respectively, the negative electrode of described diode D14 is connected with the second end of resistance R 11 and the grid of NMOS pipe G11 respectively, the leakage level of described NMOS pipe G11 is managed respectively the drain electrode of G12 with NMOS, the second end of capacitor C 12, the negative terminal of microphone end and loudspeaker negative terminal connect, the left channel signals end of described earphone jack is connected with right-channel signals end and loudspeaker anode respectively.
In said structure, described automatic switching circuit comprises:
the first end of described capacitor C 11 respectively with the transmitter end of described earphone jack, the anode of diode D12, the anode of diode D13, the source class of the first end of resistance R 11 and NMOS pipe G11 connects, the second end of described capacitor C 11 respectively with the signal circuit end of described earphone jack, the first end of the anode resistance R13 of diode D11, the anode of diode D14, the first end of resistance R 12, the source class of NMOS pipe G12, the first end of capacitor C 12 and microphone anode connect, the negative electrode of described diode D12 is connected with negative electrode and the resistance R 13 of diode D11 respectively, the negative electrode of described diode D13 is connected with the second end of resistance R 12 and the grid of NMOS pipe G12 respectively, the negative electrode of described diode D14 is connected with the second end of resistance R 11 and the grid of NMOS pipe G11 respectively, the leakage level of described NMOS pipe G11 is managed respectively the drain electrode of G12 with NMOS, the second end of capacitor C 12, the negative terminal of microphone end and loudspeaker negative terminal connect, the left channel signals end of described earphone jack is connected with right-channel signals end and loudspeaker anode respectively.
In said structure, described automatic switching circuit comprises:
the first end of described capacitor C 21 respectively with the signal circuit end of described earphone jack, the first end of capacitor C 23, the source class of NMOS pipe G21, the first end of capacitor C 22, the first end of resistance R 25, the first end of capacitor C 25, the source class of PMOS pipe G25, the first end of the first end of resistance R 23 and resistance R 24, the first end of capacitor C 24, the grid of NMOS pipe G23, the grid of NMOS pipe G24 and the first end of capacitor C 28 connect, the second end of capacitor C 21 respectively with the transmitter end of described earphone jack, the first end of resistance R 26, the first end of resistance R 27, the second end of capacitor C 22, the second end of resistance R 25, the second end of capacitor C 24, the source class of NMOS pipe G23, the first end of resistance R 21, the first end of resistance R 22, the source class of the first end of capacitor C 26 and PMOS pipe G27 connects, the drain electrode of described NMOS pipe G21 is connected with the drain electrode of PMOS pipe G22, the second end of described resistance R 26 is connected with the second end of capacitor C 23 and the grid of NMOS pipe G21 respectively, the second end of described resistance R 27 is connected with the grid of PMOS pipe G22 and the first end of capacitor C 27 respectively, the drain electrode of described NMOS pipe G23 is connected with the drain electrode of PMOS pipe G24, the drain electrode of described PMOS pipe G25 is connected with the drain electrode of NMOS pipe G26, the second end of described resistance R 21 is connected with the second end of capacitor C 25 and the grid of PMOS pipe G25 respectively, the second end of described resistance R 22 is connected with the grid of described NMOS pipe G26 and the first end of capacitor C 29 respectively, the second end of described resistance R 23 is connected with the grid of described NMOS pipe G28 and the first end of capacitor C 210 respectively, the second end of described resistance R 24 is connected with the first end of capacitor C 26 and the grid of NMOS pipe G27 respectively, the drain electrode of described PMOS pipe G27 is connected with the drain electrode of NMOS pipe G28, the source class of described PMOS pipe G22 respectively with the second end of capacitor C 27, the second end of capacitor C 28, the source class of PMOS pipe G24 and the first end of resistance R 28 connect, the source class of described NMOS pipe G26 respectively with the second end of capacitor C 29, the second end of capacitor C 210, the drain electrode of NMOS pipe G28, the first end of capacitor C 211, the first end of capacitor C 212, microphone negative terminal and loudspeaker negative terminal connect, and the second end of described resistance R 28 is connected with the second end and the microphone anode of capacitor C 211 respectively, the second end of described capacitor C 212 respectively with the left channel signals end of earphone jack, right-channel signals end and loudspeaker anode connect.
In said structure, described automatic switching circuit comprises:
the first end of described capacitor C 21 respectively with the transmitter end of described earphone jack, the first end of capacitor C 23, the source class of NMOS pipe G21, the first end of capacitor C 22, the first end of resistance R 25, the first end of capacitor C 25, the source class of PMOS pipe G25, the first end of the first end of resistance R 23 and resistance R 24, the first end of capacitor C 24, the grid of NMOS pipe G23, the grid of NMOS pipe G24 and the first end of capacitor C 28 connect, the second end of capacitor C 21 respectively with the transmitter end of described earphone jack, the first end of resistance R 26, the first end of resistance R 27, the second end of capacitor C 22, the second end of resistance R 25, the second end of capacitor C 24, the source class of NMOS pipe G23, the first end of resistance R 21, the first end of resistance R 22, the source class of the first end of capacitor C 26 and PMOS pipe G27 connects, the drain electrode of described NMOS pipe G21 is connected with the drain electrode of PMOS pipe G22, the second end of described resistance R 26 is connected with the second end of capacitor C 23 and the grid of NMOS pipe G21 respectively, the second end of described resistance R 27 is connected with the grid of PMOS pipe G22 and the first end of capacitor C 27 respectively, the drain electrode of described NMOS pipe G23 is connected with the drain electrode of PMOS pipe G24, the drain electrode of described PMOS pipe G25 is connected with the drain electrode of NMOS pipe G26, the second end of described resistance R 21 is connected with the second end of capacitor C 25 and the grid of PMOS pipe G25 respectively, the second end of described resistance R 22 is connected with the grid of described NMOS pipe G26 and the first end of capacitor C 29 respectively, the second end of described resistance R 23 is connected with the grid of described NMOS pipe G28 and the first end of capacitor C 210 respectively, the second end of described resistance R 24 is connected with the first end of capacitor C 26 and the grid of NMOS pipe G27 respectively, the drain electrode of described PMOS pipe G27 is connected with the drain electrode of NMOS pipe G28, the source class of described PMOS pipe G22 respectively with the second end of capacitor C 27, the second end of capacitor C 28, the source class of PMOS pipe G24 and the first end of resistance R 28 connect, the source class of described NMOS pipe G26 respectively with the second end of capacitor C 29, the second end of capacitor C 210, the drain electrode of NMOS pipe G28, the first end of capacitor C 211, the first end of capacitor C 212, microphone negative terminal and loudspeaker negative terminal connect, and the second end of described resistance R 28 is connected with the second end and the microphone anode of capacitor C 211 respectively, the second end of described capacitor C 212 respectively with the left channel signals end of earphone jack, right-channel signals end and loudspeaker anode connect.
Another object of the present invention is to provide a kind of compatible with earphone that comprises above-mentioned earphone compatible circuit.
In the present invention, utilize automatic switching circuit, the signal that distinct interface standard earphone jack and earphone are sent is automatically converted to the reception signal that matches each other, and compatible multiple earphone jack makes earphone general on the earphone jack of distinct interface standard.
Description of drawings
Fig. 1 is the structural representation of present headset plug end;
Fig. 2 is the wiring schematic diagram of the earphone jack end of present terminal equipment;
Fig. 3 is a kind of earphone compatible circuit structure diagram that the embodiment of the present invention provides;
Fig. 4 is a kind of earphone compatible circuit physical circuit figure that first embodiment of the invention provides;
Fig. 5 is the another kind of earphone compatible circuit physical circuit figure that first embodiment of the invention provides;
Fig. 6 is a kind of earphone compatible circuit physical circuit figure that second embodiment of the invention provides;
Fig. 7 is the another kind of earphone compatible circuit physical circuit figure that second embodiment of the invention provides.
Embodiment
In order to make purpose of the present invention, principle and advantage clearer, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the present invention, is not intended to limit the present invention.
Fig. 3 shows the structure of a kind of earphone compatible circuit that the embodiment of the present invention provides, and for convenience of explanation, only shows the part relevant to the embodiment of the present invention, and details are as follows.
A kind of earphone compatible circuit comprises:
As one embodiment of the invention, described compatible circuit also comprises:
Talk-listen switch 20 is connected between the port that is connected with signal circuit end and transmitter end in automatic switching circuit, is used for controlling the break-make of phone.
Fig. 4 shows the physical circuit of a kind of earphone compatible circuit that the embodiment of the present invention one provides, and for convenience of explanation, only shows the part relevant to the embodiment of the present invention, and details are as follows.
Described automatic switching circuit 10 comprises:
the first end of described capacitor C 11 respectively with the signal circuit end of described earphone jack, the anode of diode D12, the anode of diode D13, the source class of the first end of resistance R 11 and NMOS pipe G11 connects, the second end of described capacitor C 11 respectively with the transmitter end of described earphone jack, the first end of the anode resistance R13 of diode D11, the anode of diode D14, the first end of resistance R 12, the source class of NMOS pipe G12, the first end of capacitor C 12 and microphone anode connect, the negative electrode of described diode D12 is connected with negative electrode and the resistance R 13 of diode D11 respectively, the negative electrode of described diode D13 is connected with the second end of resistance R 12 and the grid of NMOS pipe G12 respectively, the negative electrode of described diode D14 is connected with the second end of resistance R 11 and the grid of NMOS pipe G11 respectively, the leakage level of described NMOS pipe G11 is managed respectively the drain electrode of G12 with NMOS, the second end of capacitor C 12, the negative terminal of microphone end and loudspeaker negative terminal connect, the left channel signals end of described earphone jack is connected with right-channel signals end and loudspeaker anode respectively.
Described talk-listen switch 20 comprises:
Be connected in the switch S 11 between signal circuit end and transmitter end.
Fig. 5 shows the another kind of earphone compatible circuit physical circuit that first embodiment of the invention provides, and for convenience of explanation, only shows the part relevant to the embodiment of the present invention, and details are as follows.
Described automatic switching circuit 10 comprises:
the first end of described capacitor C 11 respectively with the transmitter end of described earphone jack, the anode of diode D12, the anode of diode D13, the source class of the first end of resistance R 11 and NMOS pipe G11 connects, the second end of described capacitor C 11 respectively with the signal circuit end of described earphone jack, the first end of the anode resistance R13 of diode D11, the anode of diode D14, the first end of resistance R 12, the source class of NMOS pipe G12, the first end of capacitor C 12 and microphone anode connect, the negative electrode of described diode D12 is connected with negative electrode and the resistance R 13 of diode D11 respectively, the negative electrode of described diode D13 is connected with the second end of resistance R 12 and the grid of NMOS pipe G12 respectively, the negative electrode of described diode D14 is connected with the second end of resistance R 11 and the grid of NMOS pipe G11 respectively, the leakage level of described NMOS pipe G11 is managed respectively the drain electrode of G12 with NMOS, the second end of capacitor C 12, the negative terminal of microphone end and loudspeaker negative terminal connect, the left channel signals end of described earphone jack is connected with right-channel signals end and loudspeaker anode respectively.
The type of earphone jack is depended in the difference of Fig. 4 and Fig. 5, and the signal circuit end of dissimilar earphone jack is different from the port that the transmitter end connects.because the signal circuit end is low level, the transmitter end is high level, so anode connects the diode current flow of transmitter end, and grid connects the also conducting of metal-oxide-semiconductor of the diode cathode of conducting, the metal-oxide-semiconductor meeting conducting on that road that namely is connected with the signal circuit end, can pass through diode D11 or D12 and the conducting of microphone anode so connect that road of transmitter end, and the microphone negative terminal can take back the signal circuit end through metal-oxide-semiconductor G11 or the G12 of conducting, the positive termination L channel of loudspeaker and R channel, the loudspeaker negative terminal takes back the signal circuit section by metal-oxide-semiconductor G11 or the G12 of conducting equally.As from the foregoing, no matter how signal circuit end and transmitter end access, and the signal that compatible circuit can send distinct interface standard earphone jack and earphone be automatically converted to the reception signal that matches each other.
Fig. 6 shows the physical circuit of a kind of earphone compatible circuit that the embodiment of the present invention two provides, and for convenience of explanation, only shows the part relevant to the embodiment of the present invention, and details are as follows.
Described automatic switching circuit 10 comprises:
the first end of described capacitor C 21 respectively with the signal circuit end of described earphone jack, the first end of capacitor C 23, the source class of NMOS pipe G21, the first end of capacitor C 22, the first end of resistance R 25, the first end of capacitor C 25, the source class of PMOS pipe G25, the first end of the first end of resistance R 23 and resistance R 24, the first end of capacitor C 24, the grid of NMOS pipe G23, the grid of NMOS pipe G24 and the first end of capacitor C 28 connect, the second end of capacitor C 21 respectively with the transmitter end of described earphone jack, the first end of resistance R 26, the first end of resistance R 27, the second end of capacitor C 22, the second end of resistance R 25, the second end of capacitor C 24, the source class of NMOS pipe G23, the first end of resistance R 21, the first end of resistance R 22, the source class of the first end of capacitor C 26 and PMOS pipe G27 connects, the drain electrode of described NMOS pipe G21 is connected with the drain electrode of PMOS pipe G22, the second end of described resistance R 26 is connected with the second end of capacitor C 23 and the grid of NMOS pipe G21 respectively, the second end of described resistance R 27 is connected with the grid of PMOS pipe G22 and the first end of capacitor C 27 respectively, the drain electrode of described NMOS pipe G23 is connected with the drain electrode of PMOS pipe G24, the drain electrode of described PMOS pipe G25 is connected with the drain electrode of NMOS pipe G26, the second end of described resistance R 21 is connected with the second end of capacitor C 25 and the grid of PMOS pipe G25 respectively, the second end of described resistance R 22 is connected with the grid of described NMOS pipe G26 and the first end of capacitor C 29 respectively, the second end of described resistance R 23 is connected with the grid of described NMOS pipe G28 and the first end of capacitor C 210 respectively, the second end of described resistance R 24 is connected with the first end of capacitor C 26 and the grid of NMOS pipe G27 respectively, the drain electrode of described PMOS pipe G27 is connected with the drain electrode of NMOS pipe G28, the source class of described PMOS pipe G22 respectively with the second end of capacitor C 27, the second end of capacitor C 28, the source class of PMOS pipe G24 and the first end of resistance R 28 connect, the source class of described NMOS pipe G26 respectively with the second end of capacitor C 29, the second end of capacitor C 210, the drain electrode of NMOS pipe G28, the first end of capacitor C 211, the first end of capacitor C 212, microphone negative terminal and loudspeaker negative terminal connect, and the second end of described resistance R 28 is connected with the second end and the microphone anode of capacitor C 211 respectively, the second end of described capacitor C 212 respectively with the left channel signals end of earphone jack, right-channel signals end and loudspeaker anode connect.
Described talk-listen switch 20 comprises:
Switch S 21 and resistance R 29;
The first end of described resistance R 29 is connected with signal circuit end or the transmitter end of described earphone jack, the second end of described resistance R 29 is connected with the first end of switch S 21, and the second end of described switch S 21 is connected with the transmitter end of described earphone jack or signal circuit end.
Fig. 7 shows the another kind of earphone compatible circuit physical circuit that first embodiment of the invention provides, and for convenience of explanation, only shows the part relevant to the embodiment of the present invention, and details are as follows.
Described automatic switching circuit 10 comprises:
the first end of described capacitor C 21 respectively with the transmitter end of described earphone jack, the first end of capacitor C 23, the source class of NMOS pipe G21, the first end of capacitor C 22, the first end of resistance R 25, the first end of capacitor C 25, the source class of PMOS pipe G25, the first end of the first end of resistance R 23 and resistance R 24, the first end of capacitor C 24, the grid of NMOS pipe G23, the grid of NMOS pipe G24 and the first end of capacitor C 28 connect, the second end of capacitor C 21 respectively with the transmitter end of described earphone jack, the first end of resistance R 26, the first end of resistance R 27, the second end of capacitor C 22, the second end of resistance R 25, the second end of capacitor C 24, the source class of NMOS pipe G23, the first end of resistance R 21, the first end of resistance R 22, the source class of the first end of capacitor C 26 and PMOS pipe G27 connects, the drain electrode of described NMOS pipe G21 is connected with the drain electrode of PMOS pipe G22, the second end of described resistance R 26 is connected with the second end of capacitor C 23 and the grid of NMOS pipe G21 respectively, the second end of described resistance R 27 is connected with the grid of PMOS pipe G22 and the first end of capacitor C 27 respectively, the drain electrode of described NMOS pipe G23 is connected with the drain electrode of PMOS pipe G24, the drain electrode of described PMOS pipe G25 is connected with the drain electrode of NMOS pipe G26, the second end of described resistance R 21 is connected with the second end of capacitor C 25 and the grid of PMOS pipe G25 respectively, the second end of described resistance R 22 is connected with the grid of described NMOS pipe G26 and the first end of capacitor C 29 respectively, the second end of described resistance R 23 is connected with the grid of described NMOS pipe G28 and the first end of capacitor C 210 respectively, the second end of described resistance R 24 is connected with the first end of capacitor C 26 and the grid of NMOS pipe G27 respectively, the drain electrode of described PMOS pipe G27 is connected with the drain electrode of NMOS pipe G28, the source class of described PMOS pipe G22 respectively with the second end of capacitor C 27, the second end of capacitor C 28, the source class of PMOS pipe G24 and the first end of resistance R 28 connect, the source class of described NMOS pipe G26 respectively with the second end of capacitor C 29, the second end of capacitor C 210, the drain electrode of NMOS pipe G28, the first end of capacitor C 211, the first end of capacitor C 212, microphone negative terminal and loudspeaker negative terminal connect, and the second end of described resistance R 28 is connected with the second end and the microphone anode of capacitor C 211 respectively, the second end of described capacitor C 212 respectively with the left channel signals end of earphone jack, right-channel signals end and loudspeaker anode connect.
The type of earphone jack is depended in the difference of Fig. 6 and Fig. 7, and the signal circuit end of dissimilar earphone jack is different from the port that the transmitter end connects.Similar with the circuit of embodiment one, all automatically to change by compatible circuit, the transmitter end is connected with the microphone anode all the time, the microphone negative terminal takes back the signal circuit end by automatic switching circuit, and left channel signals end and right-channel signals end are connected with the loudspeaker anode all the time, and the loudspeaker negative terminal also takes back the signal circuit end by automatic switching circuit, thereby has realized the compatibility with distinct interface standard earphone jack.
The circuit of the embodiment of the present invention two with respect to the circuit of the embodiment of the present invention one, can well reduce the wastage, and filtering interfering is improved the service behaviour of earphone.
Another object of the present invention is to provide a kind of compatible with earphone that comprises above-mentioned earphone compatible circuit.
In the present invention, utilize automatic switching circuit, the signal that distinct interface standard earphone jack and earphone are sent is automatically converted to the reception signal that matches each other, and compatible multiple earphone jack makes earphone general on the earphone jack of distinct interface standard.
The above is only preferred embodiment of the present invention, not in order to limiting the present invention, all any modifications of doing within the spirit and principles in the present invention, is equal to and replaces and improvement etc., within all should being included in protection scope of the present invention.
Claims (8)
1. an earphone compatible circuit, is characterized in that, described compatible circuit comprises:
Automatic switching circuit, be used for the signal of described distinct interface standard earphone jack and the transmission of described earphone is automatically converted to the reception signal that matches each other, the input of described automatic switching circuit is connected with left channel signals end, right-channel signals end, signal circuit end and the transmitter end of earphone jack respectively, and the output of described automatic switching circuit is connected respectively the microphone negative terminal and is connected with loudspeaker anode, loudspeaker negative terminal and the microphone anode of earphone.
2. earphone compatible circuit as claimed in claim 1, is characterized in that, described compatible circuit also comprises:
Talk-listen switch is connected between the port that is connected with signal circuit end and transmitter end in automatic switching circuit, is used for controlling the break-make of phone.
3. earphone compatible circuit as claimed in claim 2, is characterized in that, described talk-listen switch comprises:
Be connected in the switch S 11 between the port that is connected with signal circuit end and transmitter end in automatic switching circuit.
4. earphone compatible circuit as claimed in claim 1, is characterized in that, described automatic switching circuit comprises:
Capacitor C 11, capacitor C 12, resistance R 11, resistance R 12, resistance R 13, diode D11, diode D12, diode D13, diode D14, NMOS pipe G11 and NMOS pipe G12;
the first end of described capacitor C 11 respectively with the signal circuit end of described earphone jack, the anode of diode D12, the anode of diode D13, the source class of the first end of resistance R 11 and NMOS pipe G11 connects, the second end of described capacitor C 11 respectively with the transmitter end of described earphone jack, the first end of the anode resistance R13 of diode D11, the anode of diode D14, the first end of resistance R 12, the source class of NMOS pipe G12, the first end of capacitor C 12 and microphone anode connect, the negative electrode of described diode D12 is connected with negative electrode and the resistance R 13 of diode D11 respectively, the negative electrode of described diode D13 is connected with the second end of resistance R 12 and the grid of NMOS pipe G12 respectively, the negative electrode of described diode D14 is connected with the second end of resistance R 11 and the grid of NMOS pipe G11 respectively, the leakage level of described NMOS pipe G11 is managed respectively the drain electrode of G12 with NMOS, the second end of capacitor C 12, the negative terminal of microphone end and loudspeaker negative terminal connect, the left channel signals end of described earphone jack is connected with right-channel signals end and loudspeaker anode respectively.
5. earphone compatible circuit as claimed in claim 1, is characterized in that, described automatic switching circuit comprises:
Capacitor C 11, capacitor C 12, resistance R 11, resistance R 12, resistance R 13, diode D11, diode D12, diode D13, diode D14, NMOS pipe G11 and NMOS pipe G12;
the first end of described capacitor C 11 respectively with the transmitter end of described earphone jack, the anode of diode D12, the anode of diode D13, the source class of the first end of resistance R 11 and NMOS pipe G11 connects, the second end of described capacitor C 11 respectively with the signal circuit end of described earphone jack, the first end of the anode resistance R13 of diode D11, the anode of diode D14, the first end of resistance R 12, the source class of NMOS pipe G12, the first end of capacitor C 12 and microphone anode connect, the negative electrode of described diode D12 is connected with negative electrode and the resistance R 13 of diode D11 respectively, the negative electrode of described diode D13 is connected with the second end of resistance R 12 and the grid of NMOS pipe G12 respectively, the negative electrode of described diode D14 is connected with the second end of resistance R 11 and the grid of NMOS pipe G11 respectively, the leakage level of described NMOS pipe G11 is managed respectively the drain electrode of G12 with NMOS, the second end of capacitor C 12, the negative terminal of microphone end and loudspeaker negative terminal connect, the left channel signals end of described earphone jack is connected with right-channel signals end and loudspeaker anode respectively.
6. earphone compatible circuit as claimed in claim 1, is characterized in that, described automatic switching circuit comprises:
Resistance R 21, resistance R 22, resistance R 23, resistance R 24, resistance R 25, resistance R 26, resistance R 27, resistance R 28, capacitor C 21, capacitor C 22, capacitor C 23, capacitor C 24, capacitor C 25, capacitor C 26, capacitor C 27, capacitor C 28, capacitor C 29, capacitor C 210, capacitor C 211, capacitor C 212, NMOS pipe G21, PMOS pipe G22, NMOS pipe G23, PMOS pipe G24, PMOS pipe G25, NMOS pipe G26, PMOS pipe G27 and NMOS pipe G28;
the first end of described capacitor C 21 respectively with the signal circuit end of described earphone jack, the first end of capacitor C 23, the source class of NMOS pipe G21, the first end of capacitor C 22, the first end of resistance R 25, the first end of capacitor C 25, the source class of PMOS pipe G25, the first end of the first end of resistance R 23 and resistance R 24, the first end of capacitor C 24, the grid of NMOS pipe G23, the grid of NMOS pipe G24 and the first end of capacitor C 28 connect, the second end of capacitor C 21 respectively with the transmitter end of described earphone jack, the first end of resistance R 26, the first end of resistance R 27, the second end of capacitor C 22, the second end of resistance R 25, the second end of capacitor C 24, the source class of NMOS pipe G23, the first end of resistance R 21, the first end of resistance R 22, the source class of the first end of capacitor C 26 and PMOS pipe G27 connects, the drain electrode of described NMOS pipe G21 is connected with the drain electrode of PMOS pipe G22, the second end of described resistance R 26 is connected with the second end of capacitor C 23 and the grid of NMOS pipe G21 respectively, the second end of described resistance R 27 is connected with the grid of PMOS pipe G22 and the first end of capacitor C 27 respectively, the drain electrode of described NMOS pipe G23 is connected with the drain electrode of PMOS pipe G24, the drain electrode of described PMOS pipe G25 is connected with the drain electrode of NMOS pipe G26, the second end of described resistance R 21 is connected with the second end of capacitor C 25 and the grid of PMOS pipe G25 respectively, the second end of described resistance R 22 is connected with the grid of described NMOS pipe G26 and the first end of capacitor C 29 respectively, the second end of described resistance R 23 is connected with the grid of described NMOS pipe G28 and the first end of capacitor C 210 respectively, the second end of described resistance R 24 is connected with the first end of capacitor C 26 and the grid of NMOS pipe G27 respectively, the drain electrode of described PMOS pipe G27 is connected with the drain electrode of NMOS pipe G28, the source class of described PMOS pipe G22 respectively with the second end of capacitor C 27, the second end of capacitor C 28, the source class of PMOS pipe G24 and the first end of resistance R 28 connect, the source class of described NMOS pipe G26 respectively with the second end of capacitor C 29, the second end of capacitor C 210, the drain electrode of NMOS pipe G28, the first end of capacitor C 211, the first end of capacitor C 212, microphone negative terminal and loudspeaker negative terminal connect, and the second end of described resistance R 28 is connected with the second end and the microphone anode of capacitor C 211 respectively, the second end of described capacitor C 212 respectively with the left channel signals end of earphone jack, right-channel signals end and loudspeaker anode connect.
7. earphone compatible circuit as claimed in claim 1, is characterized in that, described automatic switching circuit comprises:
Resistance R 21, resistance R 22, resistance R 23, resistance R 24, resistance R 25, resistance R 26, resistance R 27, resistance R 28, capacitor C 21, capacitor C 22, capacitor C 23, capacitor C 24, capacitor C 25, capacitor C 26, capacitor C 27, capacitor C 28, capacitor C 29, capacitor C 210, capacitor C 211, capacitor C 212, NMOS pipe G21, PMOS pipe G22, NMOS pipe G23, PMOS pipe G24, PMOS pipe G25, NMOS pipe G26, PMOS pipe G27 and NMOS pipe G28;
the first end of described capacitor C 21 respectively with the transmitter end of described earphone jack, the first end of capacitor C 23, the source class of NMOS pipe G21, the first end of capacitor C 22, the first end of resistance R 25, the first end of capacitor C 25, the source class of PMOS pipe G25, the first end of the first end of resistance R 23 and resistance R 24, the first end of capacitor C 24, the grid of NMOS pipe G23, the grid of NMOS pipe G24 and the first end of capacitor C 28 connect, the second end of capacitor C 21 respectively with the transmitter end of described earphone jack, the first end of resistance R 26, the first end of resistance R 27, the second end of capacitor C 22, the second end of resistance R 25, the second end of capacitor C 24, the source class of NMOS pipe G23, the first end of resistance R 21, the first end of resistance R 22, the source class of the first end of capacitor C 26 and PMOS pipe G27 connects, the drain electrode of described NMOS pipe G21 is connected with the drain electrode of PMOS pipe G22, the second end of described resistance R 26 is connected with the second end of capacitor C 23 and the grid of NMOS pipe G21 respectively, the second end of described resistance R 27 is connected with the grid of PMOS pipe G22 and the first end of capacitor C 27 respectively, the drain electrode of described NMOS pipe G23 is connected with the drain electrode of PMOS pipe G24, the drain electrode of described PMOS pipe G25 is connected with the drain electrode of NMOS pipe G26, the second end of described resistance R 21 is connected with the second end of capacitor C 25 and the grid of PMOS pipe G25 respectively, the second end of described resistance R 22 is connected with the grid of described NMOS pipe G26 and the first end of capacitor C 29 respectively, the second end of described resistance R 23 is connected with the grid of described NMOS pipe G28 and the first end of capacitor C 210 respectively, the second end of described resistance R 24 is connected with the first end of capacitor C 26 and the grid of NMOS pipe G27 respectively, the drain electrode of described PMOS pipe G27 is connected with the drain electrode of NMOS pipe G28, the source class of described PMOS pipe G22 respectively with the second end of capacitor C 27, the second end of capacitor C 28, the source class of PMOS pipe G24 and the first end of resistance R 28 connect, the source class of described NMOS pipe G26 respectively with the second end of capacitor C 29, the second end of capacitor C 210, the drain electrode of NMOS pipe G28, the first end of capacitor C 211, the first end of capacitor C 212, microphone negative terminal and loudspeaker negative terminal connect, and the second end of described resistance R 28 is connected with the second end and the microphone anode of capacitor C 211 respectively, the second end of described capacitor C 212 respectively with the left channel signals end of earphone jack, right-channel signals end and loudspeaker anode connect.
8. compatible with earphone that comprises the described earphone compatible circuit of claim 1 to 7.
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| CN201210026424.6A CN103167368B (en) | 2012-02-07 | 2012-02-07 | A kind of earphone compatible circuit and compatible with earphone |
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| CN201210026424.6A CN103167368B (en) | 2012-02-07 | 2012-02-07 | A kind of earphone compatible circuit and compatible with earphone |
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| CN103167368B CN103167368B (en) | 2015-12-30 |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104618836A (en) * | 2015-02-02 | 2015-05-13 | 深圳市吉芯微半导体有限公司 | Communication device |
| CN107181994A (en) * | 2017-06-27 | 2017-09-19 | 努比亚技术有限公司 | Audio compatible circuit, earphone and electronic system |
| CN107257518A (en) * | 2017-08-15 | 2017-10-17 | 上海摩软通讯技术有限公司 | Earphone interconnecting device and its forwarding method |
| CN107396226A (en) * | 2017-08-23 | 2017-11-24 | 努比亚技术有限公司 | A kind of earphone compatible circuit, mobile terminal and electronic system |
| CN107678991A (en) * | 2017-09-30 | 2018-02-09 | 努比亚技术有限公司 | A kind of data processing method and terminal, computer-readable recording medium |
| CN109923872A (en) * | 2016-10-28 | 2019-06-21 | 松下知识产权经营株式会社 | Voice input-output device and bone-conduction head set type ear receiver system |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1196652A (en) * | 1997-01-08 | 1998-10-21 | 松下电器产业株式会社 | Earphone |
| CN101719610A (en) * | 2009-12-30 | 2010-06-02 | 华为终端有限公司 | Wired earphone compatible method and device |
| CN202551306U (en) * | 2012-02-07 | 2012-11-21 | 吴志勇 | Earphone compatible circuit and compatible earphone |
-
2012
- 2012-02-07 CN CN201210026424.6A patent/CN103167368B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1196652A (en) * | 1997-01-08 | 1998-10-21 | 松下电器产业株式会社 | Earphone |
| CN101719610A (en) * | 2009-12-30 | 2010-06-02 | 华为终端有限公司 | Wired earphone compatible method and device |
| CN202551306U (en) * | 2012-02-07 | 2012-11-21 | 吴志勇 | Earphone compatible circuit and compatible earphone |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104618836A (en) * | 2015-02-02 | 2015-05-13 | 深圳市吉芯微半导体有限公司 | Communication device |
| CN109923872A (en) * | 2016-10-28 | 2019-06-21 | 松下知识产权经营株式会社 | Voice input-output device and bone-conduction head set type ear receiver system |
| CN107181994A (en) * | 2017-06-27 | 2017-09-19 | 努比亚技术有限公司 | Audio compatible circuit, earphone and electronic system |
| CN107257518A (en) * | 2017-08-15 | 2017-10-17 | 上海摩软通讯技术有限公司 | Earphone interconnecting device and its forwarding method |
| CN107257518B (en) * | 2017-08-15 | 2019-06-18 | 上海摩软通讯技术有限公司 | Earphone interconnecting device and its forwarding method |
| CN107396226A (en) * | 2017-08-23 | 2017-11-24 | 努比亚技术有限公司 | A kind of earphone compatible circuit, mobile terminal and electronic system |
| CN107678991A (en) * | 2017-09-30 | 2018-02-09 | 努比亚技术有限公司 | A kind of data processing method and terminal, computer-readable recording medium |
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| Publication number | Publication date |
|---|---|
| CN103167368B (en) | 2015-12-30 |
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