CN214278284U - Type-C voltage discrimination circuit - Google Patents
Type-C voltage discrimination circuit Download PDFInfo
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- CN214278284U CN214278284U CN202023250036.5U CN202023250036U CN214278284U CN 214278284 U CN214278284 U CN 214278284U CN 202023250036 U CN202023250036 U CN 202023250036U CN 214278284 U CN214278284 U CN 214278284U
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Abstract
The utility model relates to a Type-C voltage discrimination circuit, it includes: a first judging sub-circuit is provided with a first Zener diode, a first light emitting diode and a first resistor, wherein the cathode of the first Zener diode is coupled with a Type-C interface to be tested, the voltage output by the Type-C interface is VBus, and the burst voltage of the first Zener diode is V1. The first light emitting diode is connected with the anode of the first Zener diode in series, one end of the first resistor is connected with the first light emitting diode in series, and the other end of the first resistor is grounded; the second judging sub-circuit is provided with a second Zener diode, a second light-emitting diode and a second resistor, the rush voltage of the second Zener diode is V2, the cathode of the second Zener diode is coupled between the anode of the first Zener diode and the light-emitting diode, and the second light-emitting diode is connected with the second resistor in series and then is grounded.
Description
[ technical field ] A method for producing a semiconductor device
The utility model relates to a Type-C voltage discrimination circuit.
[ background of the invention ]
At present, because the Type-C output voltages are various, when the device is used, no method is available for directly judging the output voltage, and the actual output voltage value can be known only by additionally measuring with an ammeter.
In view of this, the utility model provides a Type-C voltage discrimination circuit, it can directly perceivedly and distinguish out the output of Type-C interface to electron device's voltage fast, need not to arrange in addition and use the ammeter to measure.
[ Utility model ] content
The utility model aims to solve the technical problem that a Type-C voltage discrimination circuit is provided, its output voltage that can directly perceivedly and differentiate out the Type-C interface fast need not to use the ammeter to measurationly.
In order to solve the technical problem, the utility model relates to a Type-C voltage discriminates circuit, it is applicable to an electron device, include:
a first judging sub-circuit, which has a first zener diode, a first light emitting diode and a first resistor, wherein the cathode of the first zener diode is coupled to a Type-C interface to be tested, the voltage output by the Type-C interface is VBus, the burst voltage of the first zener diode is V1, the first light emitting diode is coupled to the anode of the first zener diode in series, one end of the first resistor is coupled to the first light emitting diode in series, and the other end is grounded; and
a second judging sub-circuit, which has a second zener diode, a second light emitting diode and a second resistor, wherein the rush voltage of the second zener diode is V2, the cathode of the second zener diode is coupled between the anode of the first zener diode and the light emitting diode, and the second light emitting diode is grounded after being connected in series with the second resistor;
when the VBus exceeds V1 and is smaller than V1+ V2, the first Zener diode is conducted, so that the first light-emitting diode is lightened, but the second Zener diode is not conducted, so that the second light-emitting diode is not lightened, and when the VBus exceeds V1+ V2, the first Zener diode and the second Zener diode are both conducted, so that the first light-emitting diode and the second light-emitting diode are lightened.
Preferably, the Type-C voltage determining circuit of the present invention further includes a third determining sub-circuit and a fourth determining sub-circuit, the third determining sub-circuit has a third zener diode, a third led and a third resistor, the rush voltage of the third zener diode is V3, the cathode of the third zener diode is coupled between the anode of the second zener diode and the second led, and the third led is grounded after being connected in series with the third resistor; the fourth judging sub-circuit is provided with a fourth zener diode, a fourth light emitting diode and a fourth resistor, the rush voltage of the fourth zener diode is V4, the cathode of the fourth zener diode is coupled between the anode of the third zener diode and the third light emitting diode, and the fourth light emitting diode is grounded after being connected with the fourth resistor in series; wherein the content of the first and second substances,
when the VBus exceeds V1+ V2+ V3 and is less than V1+ V2+ V3+ V4, the first Zener diode, the second Zener diode and the third Zener diode are all conducted, so that the first light-emitting diode, the second light-emitting diode and the third light-emitting diode are all lighted, but the fourth Zener diode is not conducted, so that the fourth light-emitting diode is not lighted,
when the VBus exceeds V1+ V2+ V3+ V4, the first zener diode, the second zener diode, the third zener diode and the fourth zener diode are all turned on, so that the first light emitting diode LED1, the second light emitting diode, the third light emitting diode and the fourth light emitting diode are all turned on.
Preferably, the first resistor, the second resistor, the third resistor and the fourth resistor are grounded after being coupled to a transistor, and the transistor is connected to a touch switch for disconnecting after receiving a GPIO signal sent by the touch switch, and turning off the lighted led.
Compared with the prior art, the utility model discloses a Type-C voltage discrimination circuit is through setting up a plurality of auditors diode and emitting diode cooperation, and when the different voltage of different Type-C interface output, different emitting diode lights, borrows this to let the user differentiate the voltage that present Type-C connector exported directly perceivedly, need not to use the ammeter to measurationally, unusual convenience.
[ description of the drawings ]
Fig. 1 is the utility model discloses the circuit diagram of Type-C voltage discrimination circuit.
[ detailed description ] embodiments
Referring to fig. 1, the present invention provides a Type-C voltage determination circuit, which is suitable for an electronic device (not shown), including a first determination sub-circuit 11 and a second determination sub-circuit 12.
The first determination sub-circuit 11 has a first zener diode D1, a first LED1 and a first resistor R1. The cathode of the first zener diode D1 is coupled to a Type-C interface to be tested, the voltage output by the Type-C interface is VBus, and the inrush voltage of the first zener diode D1 is V1 (e.g., 2V). The first light emitting diode LED1 is coupled in series with the anode of the first zener diode D1. The first resistor R1 has one end coupled to the first LED1 in series and the other end grounded.
The second determining sub-circuit 12 has a second zener diode D2, a second light emitting diode LED2 and a second resistor R2, the breakdown voltage of the second zener diode D2 is V2 (e.g., 4V), the cathode of the second zener diode D2 is coupled between the anode of the first zener diode D1 and the light emitting diode LED1, and the second light emitting diode LED2 is grounded after being connected in series with the second resistor R2.
When the VBus exceeds V1 (e.g., 2V) and is less than V1+ V2 (e.g., 2V + 4V), the first zener diode D1 is turned on, so that the first LED1 is lit, but the second zener diode D2 is not turned on, so that the second LED2 is not lit, and when the VBus exceeds V1+ V2 (e.g., 2V + 4V), the first zener diode D1 and the second zener diode D2 are both turned on, so that the first LED1 and the second LED2 are lit.
In this embodiment, in order to distinguish more Type-C voltages, the Type-C voltage discrimination circuit of the present invention further includes a third discrimination sub-circuit 13 and a fourth discrimination circuit 14.
The third determination sub-circuit 13 has a third zener diode D3, a third LED3 and a third resistor R3. The inrush voltage of the third zener diode D3 is V3 (e.g., 5V), the cathode of the third zener diode D3 is coupled between the anode of the second zener diode D2 and the second LED2, and the third LED3 is connected in series with the third resistor R3 and then grounded.
The fourth sub-circuit 14 has a fourth zener diode D4, a fourth LED4 and a fourth resistor R4. The inrush voltage of the fourth zener diode D4 is V4 (e.g., 5V), the cathode of the fourth zener diode D4 is coupled between the anode of the third zener diode D3 and the third LED3, and the fourth LED4 is connected in series with the fourth resistor R4 and then grounded.
When the VBus exceeds V1+ V2+ V3 (e.g., 2V +4V + 5V) and is less than V1+ V2+ V3+ V4 (e.g., 2V +4V + 5V), the first zener diode D1, the second zener diode D2 and the third zener diode D3 are all turned on, so that the first LED1, the second LED2 and the third LED3 are all turned on, but the fourth zener diode D4 is not turned on, so that the fourth LED4 is not turned on.
When the VBus exceeds V1+ V2+ V3+ V4 (e.g., 2V +4V + 5V), the first zener diode D1, the second zener diode D2, the third zener diode D3 and the fourth zener diode D4 are all turned on, so that the first LED1, the second LED2, the third LED3 and the fourth LED4 are all turned on.
In this embodiment, in order to reach the power saving efficiency, let and need not use the utility model discloses a can close these a plurality of emitting diode when Type-C voltage discrimination circuit, the utility model discloses a first resistance R1, second resistance R2, third resistance R3 and fourth resistance R4 of Type-C voltage discrimination circuit ground connection behind a coupling triode 15, and this triode 15 is connected a touch switch (not shown) for disconnect after receiving the GPIO signal that this touch switch sent, close the emitting diode who has lighted.
To sum up, the utility model discloses a Type-C voltage discrimination circuit is through setting up a plurality of auditors diode and emitting diode cooperation, and when the different voltage of different Type-C interface output, different emitting diode lights, borrows this to let the user differentiate the voltage that present Type-C connector exported directly perceivedly, need not to use the ammeter to measurationally, unusual convenience.
The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art can easily think of the changes or substitutions within the technical scope of the present invention, and all should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (3)
1. The utility model provides a Type-C voltage discrimination circuit, its is applicable to an electronic device, its characterized in that includes:
a first judging sub-circuit, which has a first zener diode, a first light emitting diode and a first resistor, wherein the cathode of the first zener diode is coupled to a Type-C interface to be tested, the voltage output by the Type-C interface is VBus, the burst voltage of the first zener diode is V1, the first light emitting diode is coupled to the anode of the first zener diode in series, one end of the first resistor is coupled to the first light emitting diode in series, and the other end is grounded; and
a second judging sub-circuit, which has a second zener diode, a second light emitting diode and a second resistor, wherein the rush voltage of the second zener diode is V2, the cathode of the second zener diode is coupled between the anode of the first zener diode and the light emitting diode, and the second light emitting diode is grounded after being connected in series with the second resistor;
when the VBus exceeds V1 and is smaller than V1+ V2, the first Zener diode is conducted, so that the first light-emitting diode is lightened, but the second Zener diode is not conducted, so that the second light-emitting diode is not lightened, and when the VBus exceeds V1+ V2, the first Zener diode and the second Zener diode are both conducted, so that the first light-emitting diode and the second light-emitting diode are lightened.
2. The Type-C voltage determining circuit of claim 1, further comprising a third determining sub-circuit and a fourth determining sub-circuit, wherein the third determining sub-circuit has a third Zener diode, a third LED and a third resistor, the third Zener diode has a breakdown voltage V3, the cathode of the third Zener diode is coupled between the anode of the second Zener diode and the second LED, and the third LED is grounded after being connected in series with the third resistor; the fourth judging sub-circuit is provided with a fourth zener diode, a fourth light emitting diode and a fourth resistor, the rush voltage of the fourth zener diode is V4, the cathode of the fourth zener diode is coupled between the anode of the third zener diode and the third light emitting diode, and the fourth light emitting diode is grounded after being connected with the fourth resistor in series; wherein the content of the first and second substances,
when the VBus exceeds V1+ V2+ V3 and is less than V1+ V2+ V3+ V4, the first Zener diode, the second Zener diode and the third Zener diode are all conducted, so that the first light-emitting diode, the second light-emitting diode and the third light-emitting diode are all lighted, but the fourth Zener diode is not conducted, so that the fourth light-emitting diode is not lighted,
when the VBus exceeds V1+ V2+ V3+ V4, the first zener diode, the second zener diode, the third zener diode and the fourth zener diode are all turned on, so that the first light emitting diode LED1, the second light emitting diode, the third light emitting diode and the fourth light emitting diode are all turned on.
3. The Type-C voltage discrimination circuit of claim 2, wherein the first resistor, the second resistor, the third resistor, and the fourth resistor are coupled to a transistor and then grounded, and the transistor is connected to a trigger switch for disconnecting after receiving a GPIO signal from the trigger switch and turning off an illuminated led.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023250036.5U CN214278284U (en) | 2020-12-29 | 2020-12-29 | Type-C voltage discrimination circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023250036.5U CN214278284U (en) | 2020-12-29 | 2020-12-29 | Type-C voltage discrimination circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214278284U true CN214278284U (en) | 2021-09-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202023250036.5U Active CN214278284U (en) | 2020-12-29 | 2020-12-29 | Type-C voltage discrimination circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214278284U (en) |
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2020
- 2020-12-29 CN CN202023250036.5U patent/CN214278284U/en active Active
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