CN103855769B - Support cordless telephone charging and the circuit structure having handle dislodging machine testing of restricting simultaneously - Google Patents
Support cordless telephone charging and the circuit structure having handle dislodging machine testing of restricting simultaneously Download PDFInfo
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- CN103855769B CN103855769B CN201410069603.7A CN201410069603A CN103855769B CN 103855769 B CN103855769 B CN 103855769B CN 201410069603 A CN201410069603 A CN 201410069603A CN 103855769 B CN103855769 B CN 103855769B
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Abstract
Support cordless telephone charging and the circuit structure having handle dislodging machine testing of restricting simultaneously, comprise main control chip, over-current detection chip U1, cradle, resistance R1, R2, decoupling capacitance C1, C2, diode D1.When cordless telephone is put on cradle, the voltage of cradle 1 pin is high level, and HOOK_DET keeps high level.When cordless telephone removes cradle, the voltage of cradle 1 pin or high level, HOOK_DET keeps high level.Contact is as cradle function.When there being rope handle to be put on cradle, cradle 1 pin is shorted to GND, the OC# output overcurrent mark of U1, and the EN of master control needs output low level with charge closing switch, and HOOK_DET high level occurs to low level saltus step (GPIO has stabilization) simultaneously.Contact is as there being the on-hook of rope handle.The present invention can support the charging of rope handle dislodging machine testing and cordless telephone on a cradle.
Description
[technical field]
The present invention relates to a kind of circuit structure supported cordless telephone charging simultaneously and have handle dislodging machine testing of restricting.
[background technology]
Be configured with separately the phone of rope handle, have rope handle dislodging machine to adopt mechanical key (hook switch) or magnet proximity test.The equipment of independent configuration cordless telephone, uses the special cradle charging coordinated.Cordless telephone and have the scheme that all has of rope both handles, generally has independent wireless telephone charger having outside rope handle position.User is general after using cordless telephone to converse only puts back to cradle when low electricity by cordless telephone, in most cases cradle is idle (another, frequent discharge and recharge, can shorten the life-span of cordless telephone battery), this had both added equipment cost and had also caused the wasting of resources.
In view of this, the present inventor furthers investigate for the defect of prior art, then has this case to produce.
[summary of the invention]
Technical problem to be solved by this invention is that provide a kind of supports cordless telephone charging and the circuit structure having handle dislodging machine testing of restricting simultaneously.
The present invention is achieved in that
Support cordless telephone charging and the circuit structure having handle dislodging machine testing of restricting simultaneously, it is characterized in that: comprise main control chip, over-current detection chip U1, cradle, resistance R1, R2, decoupling capacitance C1, C2, diode D1;
The HOOK_DET pin of described main control chip is main control chip input interface, for detecting the dislodging machine of rope handle, edging trigger; HOOK_DET pin connects pull-up resistor R2 to VCC_IO, and HOOK_DET pin also connects the anode of diode D1, and the negative electrode of described diode D1 is connected to 1 pin of cradle contact;
The EN pin of described main control chip is the output interface of main control chip, for opening the power supply of closing wireless telephone charger;
The OC# pin of described main control chip is input interface, for detecting cradle over-current state;
The OC# end of described over-current detection chip U1, is output overcurrent mark, is exported by over-current detection chip U1, connect pull-up resistor R1 to VCC_IO, when overcurrent detection chip U1 detects the 1st pin short circuit, OC# holds output low level; 5th pin of described over-current detection chip U1 connects the power supply being used for cordless telephone charging, the 1st pin is outputted to after the switching tube through over-current detection chip U1 inside, 1st pin of over-current detection chip U1 is connected to 1 pin of described cradle contact, provides the charging voltage of cordless telephone; 5th pin and the 1st pin of described over-current detection chip U1 are also connected respectively to decoupling capacitance C1, C2; Described decoupling capacitance C1, C2 other end ground connection; The 2nd pin GND ground connection of described over-current detection chip U1;
2 pin ground connection of described cradle contact.
Further, 1 pin of described over-current detection chip U1 is connected to 1 pin of cradle.
The invention has the advantages that: the charging that rope handle dislodging machine testing and cordless telephone can be supported on a cradle.When not changing main frame software and hardware, can flexible configuration cordless telephone and have rope handle (both configuration or alternative).
[accompanying drawing explanation]
The invention will be further described in conjunction with the embodiments with reference to the accompanying drawings.
Fig. 1 is electrical block diagram of the present invention.
Fig. 2 is the flow chart in use procedure of the present invention.
[embodiment]
As shown in Figure 1, support cordless telephone charging simultaneously and have the circuit structure of handle dislodging machine testing of restricting, comprising main control chip, over-current detection chip U1, cradle, resistance R1(10K Ω), R2(10K Ω), decoupling capacitance C1, C2, diode D1;
The HOOK_DET pin of described main control chip is main control chip input interface, for detecting the dislodging machine of rope handle, edging trigger; HOOK_DET pin connects the level of pull-up resistor R2 to VCC_IO(master control IO), HOOK_DET pin also connects the anode of diode D1, and the negative electrode of described diode D1 is connected to 1 pin of cradle contact;
The EN pin of described main control chip is the output interface of main control chip, for opening the power supply of closing wireless telephone charger;
The OC# pin of described main control chip is input interface, for detecting cradle over-current state;
The OC# end of described over-current detection chip U1, for output overcurrent mark, exported by over-current detection chip U1, connect the level of pull-up resistor R1 to VCC_IO(master control IO), when overcurrent detection chip U1 detects the 1st pin (OUT) overcurrent (1 pin short circuit), OC# holds output low level; 5th pin of described over-current detection chip U1 connects the power supply (such as+5V) being used for cordless telephone charging, the 1st pin is outputted to after the switching tube through over-current detection chip U1 inside, 1st pin of over-current detection chip U1 is connected to 1 pin of described cradle contact, provides the charging voltage of cordless telephone; 5th pin and the 1st pin of described over-current detection chip U1 are also connected respectively to decoupling capacitance C1, C2; Described decoupling capacitance C1, C2 other end ground connection; The 2nd pin GND ground connection of described over-current detection chip U1; 2 pin ground connection of described cradle contact.
HOOK_DET is the GPIO of phone master control, for detecting the dislodging machine of rope handle, edging trigger.U1 is charging overcurrent protection chip, and EN is charge switch, and OC# is overcurrent mark.
Cordless telephone is put on cradle and is equivalent to normal load.There is the below of rope handle to have identical contact with wireless handle, have between two contacts of rope handle and have the resistance (be put on cradle and be equivalent to short circuit) being less than 1 ohm.
When cordless telephone is put on cradle, the voltage of cradle 1 pin is high level, and HOOK_DET keeps high level.When cordless telephone removes cradle, the voltage of cradle 1 pin or high level, HOOK_DET keeps high level.Contact is as cradle function.
When there being rope handle to be put on cradle, cradle 1 pin is shorted to GND, the OC# output overcurrent mark of U1, and the EN of master control needs output low level with charge closing switch, and HOOK_DET high level occurs to low level saltus step (GPIO has stabilization) simultaneously.Contact is as there being the on-hook of rope handle.
When there being rope handle to take off from cradle, cradle 1 pin disconnects from GND, and the saltus step (GPIO have stabilization) of low level to high level occurs HOOK_DET, and contact is as there being rope handle off-hook.At this moment master control EN exports high level and opens charge switch.
Software section increases cordless telephone charged state notice, to adapt to cradle by cordless telephone for charging instead of having the off hook state of rope handle.As shown in Figure 2.
The present invention can support the charging of rope handle dislodging machine testing and cordless telephone on a cradle.When not changing main frame software and hardware, can flexible configuration cordless telephone and have rope handle (both configuration or alternative).
The foregoing is only better enforcement use-case of the present invention, be not intended to limit protection scope of the present invention.Within the spirit and principles in the present invention all, any amendment done, equivalent replacement and improvement etc., all should be included within protection scope of the present invention.
Claims (1)
1. support cordless telephone charging and the circuit structure having handle dislodging machine testing of restricting simultaneously, it is characterized in that: comprise main control chip, over-current detection chip U1, cradle, resistance R1, R2, decoupling capacitance C1, C2, diode D1;
The HOOK_DET pin of described main control chip is main control chip input interface, for detecting the dislodging machine of rope handle, edging trigger; HOOK_DET pin connects the level VCC_IO of pull-up resistor R2 to master control IO, and HOOK_DET pin also connects the anode of diode D1, and the negative electrode of described diode D1 is connected to 1 pin of cradle contact;
The EN pin of described main control chip is the output interface of main control chip, for opening the power supply of closing wireless telephone charger;
The OC# pin of described main control chip is input interface, for detecting cradle over-current state;
The OC# end of described over-current detection chip U1, is output overcurrent mark, is exported by over-current detection chip U1, connect the level VCC_IO of pull-up resistor R1 to master control IO, when overcurrent detection chip U1 detects the 1st pin short circuit, OC# holds output low level; 5th pin of described over-current detection chip U1 connects the power supply being used for cordless telephone charging, the 1st pin is outputted to after the switching tube through over-current detection chip U1 inside, 1st pin of over-current detection chip U1 is connected to 1 pin of described cradle contact, provides the charging voltage of cordless telephone; 5th pin and the 1st pin of described over-current detection chip U1 are also connected respectively to decoupling capacitance C1, C2; Described decoupling capacitance C1, C2 other end ground connection; The 2nd pin GND ground connection of described over-current detection chip U1;
2 pin ground connection of described cradle contact.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410069603.7A CN103855769B (en) | 2014-02-27 | 2014-02-27 | Support cordless telephone charging and the circuit structure having handle dislodging machine testing of restricting simultaneously |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410069603.7A CN103855769B (en) | 2014-02-27 | 2014-02-27 | Support cordless telephone charging and the circuit structure having handle dislodging machine testing of restricting simultaneously |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103855769A CN103855769A (en) | 2014-06-11 |
| CN103855769B true CN103855769B (en) | 2016-03-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410069603.7A Active CN103855769B (en) | 2014-02-27 | 2014-02-27 | Support cordless telephone charging and the circuit structure having handle dislodging machine testing of restricting simultaneously |
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| Country | Link |
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| CN (1) | CN103855769B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110971762B (en) * | 2019-12-09 | 2021-03-16 | 歌尔科技有限公司 | Communication frequency setting method, earphone, base and cordless communication device |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5010565A (en) * | 1990-06-29 | 1991-04-23 | Bryan Nash | Apparatus and method for adding cordless handset capability to an existing corded telephone |
| GB2365266A (en) * | 2000-05-30 | 2002-02-13 | E Lead Electronic Co Ltd | Fixed telephone structurally adapted for use of cellular phones |
| CN2501262Y (en) * | 2001-08-07 | 2002-07-17 | 黄长安 | Double receiver telephone |
| CN2519546Y (en) * | 2001-11-01 | 2002-10-30 | 深圳德兴发塑胶制品有限公司 | Cord telephone set with wireless band receiver |
| CN203747463U (en) * | 2014-02-27 | 2014-07-30 | 福建星网锐捷通讯股份有限公司 | Circuit structure supporting cordless telephone charging and corded handle off-hook and on-hook detection simultaneously |
-
2014
- 2014-02-27 CN CN201410069603.7A patent/CN103855769B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5010565A (en) * | 1990-06-29 | 1991-04-23 | Bryan Nash | Apparatus and method for adding cordless handset capability to an existing corded telephone |
| GB2365266A (en) * | 2000-05-30 | 2002-02-13 | E Lead Electronic Co Ltd | Fixed telephone structurally adapted for use of cellular phones |
| CN2501262Y (en) * | 2001-08-07 | 2002-07-17 | 黄长安 | Double receiver telephone |
| CN2519546Y (en) * | 2001-11-01 | 2002-10-30 | 深圳德兴发塑胶制品有限公司 | Cord telephone set with wireless band receiver |
| CN203747463U (en) * | 2014-02-27 | 2014-07-30 | 福建星网锐捷通讯股份有限公司 | Circuit structure supporting cordless telephone charging and corded handle off-hook and on-hook detection simultaneously |
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| Publication number | Publication date |
|---|---|
| CN103855769A (en) | 2014-06-11 |
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