GB2624349A - Voltage information detecting circuit, power supply circuit, driving circuit and voltage information detecting method - Google Patents
Voltage information detecting circuit, power supply circuit, driving circuit and voltage information detecting method Download PDFInfo
- Publication number
- GB2624349A GB2624349A GB2402725.2A GB202402725A GB2624349A GB 2624349 A GB2624349 A GB 2624349A GB 202402725 A GB202402725 A GB 202402725A GB 2624349 A GB2624349 A GB 2624349A
- Authority
- GB
- United Kingdom
- Prior art keywords
- voltage
- circuit
- input
- input voltage
- detecting
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000000034 method Methods 0.000 title claims abstract 5
- 230000003287 optical effect Effects 0.000 claims 5
- 239000003990 capacitor Substances 0.000 claims 2
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R15/00—Details of measuring arrangements of the types provided for in groups G01R17/00 - G01R29/00, G01R33/00 - G01R33/26 or G01R35/00
- G01R15/14—Adaptations providing voltage or current isolation, e.g. for high-voltage or high-current networks
- G01R15/16—Adaptations providing voltage or current isolation, e.g. for high-voltage or high-current networks using capacitive devices
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
- G01R19/25—Arrangements for measuring currents or voltages or for indicating presence or sign thereof using digital measurement techniques
- G01R19/2513—Arrangements for monitoring electric power systems, e.g. power lines or loads; Logging
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R23/00—Arrangements for measuring frequencies; Arrangements for analysing frequency spectra
- G01R23/02—Arrangements for measuring frequency, e.g. pulse repetition rate; Arrangements for measuring period of current or voltage
- G01R23/06—Arrangements for measuring frequency, e.g. pulse repetition rate; Arrangements for measuring period of current or voltage by converting frequency into an amplitude of current or voltage
- G01R23/09—Arrangements for measuring frequency, e.g. pulse repetition rate; Arrangements for measuring period of current or voltage by converting frequency into an amplitude of current or voltage using analogue integrators, e.g. capacitors establishing a mean value by balance of input signals and defined discharge signals or leakage
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R15/00—Details of measuring arrangements of the types provided for in groups G01R17/00 - G01R29/00, G01R33/00 - G01R33/26 or G01R35/00
- G01R15/14—Adaptations providing voltage or current isolation, e.g. for high-voltage or high-current networks
- G01R15/22—Adaptations providing voltage or current isolation, e.g. for high-voltage or high-current networks using light-emitting devices, e.g. LED, optocouplers
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
- G01R19/165—Indicating that current or voltage is either above or below a predetermined value or within or outside a predetermined range of values
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Measurement Of Current Or Voltage (AREA)
Abstract
A voltage information detecting circuit, a power supply circuit, a driving circuit and a voltage information detecting method. The voltage information detecting circuit, includes: a detecting circuit, configured to be connected to an input port which receives an input voltage (Vin), and output a detecting signal from an output terminal corresponding to the input voltage; a charge storage circuit, configured to be connected to the output terminal of the detecting circuit, being charged and discharge according to the detecting signal; and a controller, configured to be connected to a first connecting node (A) between the charge storage circuit and the detecting circuit, and obtain information of the input voltage according to a voltage of the first connecting node (A).
Claims (13)
1. A voltage information detecting circuit, comprising: a detecting circuit, configured to be connected to an input port which receives an input volta ge (Vin) , and output a detecting signal from an output terminal corresponding to th e input voltage; a charge storage circuit, configured to be connected to the output terminal of the detecting circui t, being charged and discharge according to the detecting signal; and a controller, configured to be connected to a first connecting node (A) between the charge storage circuit and the detecting circuit, and obtain information of the input voltage according to a voltage of the first connecting node (A) .
2. The voltage information detecting circuit according to claim 1, wherein, information of the input voltage comprises an amplitude of the input volta ge and/or a frequency of the input voltage.
3. The voltage information detecting circuit according to claim 2, wherein, the charge storage circuit comprises a first resistor (R1) and a first capacitor (C1) , the first resistor and the first capacitor are in parallel connection betw een the first connecting node (A) and a ground port.
4. The voltage information detecting circuit according to claim 2, wherein, when the input voltage is higher than a first threshold (e.g. 0.6V) , the detecting circuit out puts the detecting signal which follows the inp ut voltage (Vin) .
5. The voltage information detecting circuit according to claim 4, wherein, the detecting circuit comprises: a second resistor (R2) , a third resistor (R3) and an optical coupler (OC) , the second resistor and the third resistor are in serials connection betwe en the input port and the ground port, an anode of the optical coupler is connected to a second connecting node (B) between the second resistor and the third resistor, a cathode of the optical coupler is connected to the ground port, an emitter of the optical coupler is connected to the first connecting nod e (A) , a collector of the optical coupler is supplied with a preset voltage (Vdd) .
6. The voltage information detecting circuit according any one of claims 2 to 4, wherein, the controller calculates the frequency of the input voltage by using a fr equency of the detecting signal; and/or the controller compares voltage of the first connecting node (A) with a reference voltage, measures a period (T2) when the voltage of the first connecting node (A) is lower than the reference voltage, and calculates the amplitude of the input voltage according to the period .
7. A power supply circuit, comprising: the voltage information detecting circuit according to any one of claims 1 to 6; the input port, configured to receive the input voltage (Vin) ; an output port, configured to output an output voltage (Vout) ; and a converter, configured to convert the input voltage into the output voltage.
8. A driving circuit, comprising the power supply circuit according to claim 7.
9. The driving circuit according to claim 8, wherein, the information of the input voltage is transmitted by wireless interface or wire communication interface circuit.
10. The driving circuit according to claim 8, wherein, the driving circuit further comprises: a DC-DC circuit, configured to convert the output voltage (Vout) of the power supply circuit into a second output voltage, so as to drive an electronic equipment.
11. A voltage information detecting method, comprising: outputting a detecting signal corresponding to an input voltage; a charge storage circuit being charged and discharge according to the dete cting signal; and obtaining information of the input voltage according to a voltage of the c harge storage circuit.
12. The method according to claim 11, wherein, information of the input voltage comprises an amplitude of the input volta ge and/or a frequency of the input voltage.
13. The method according to claims 11 to 12, wherein, the controller calculates the frequency of the input voltage by using a fr equency of the detecting signal; and/or the controller compares voltage of the detecting signal with a reference v oltage, measures a period (T2) when the voltage of the charge storage circuit is lower than the referenc e voltage, and calculates the amplitude of the input voltage according to the period .
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/CN2021/121726 WO2023050157A1 (en) | 2021-09-29 | 2021-09-29 | Voltage information detecting circuit, power supply circuit, driving circuit and voltage information detecting method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| GB202402725D0 GB202402725D0 (en) | 2024-04-10 |
| GB2624349A true GB2624349A (en) | 2024-05-15 |
Family
ID=85781045
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2402725.2A Pending GB2624349A (en) | 2021-09-29 | 2021-09-29 | Voltage information detecting circuit, power supply circuit, driving circuit and voltage information detecting method |
Country Status (2)
| Country | Link |
|---|---|
| GB (1) | GB2624349A (en) |
| WO (1) | WO2023050157A1 (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010256125A (en) * | 2009-04-23 | 2010-11-11 | Hioki Ee Corp | Voltage detection apparatus and line voltage detecting apparatus |
| CN202661534U (en) * | 2012-07-26 | 2013-01-09 | 南京华士电子科技有限公司 | Novel voltage detector |
| CN102954556A (en) * | 2011-08-23 | 2013-03-06 | 珠海格力电器股份有限公司 | Electric heater control circuit and air conditioner with same |
| CN209992566U (en) * | 2019-05-20 | 2020-01-24 | 登钛电子技术(上海)有限公司 | Optical coupling isolation input voltage under-voltage detection circuit |
-
2021
- 2021-09-29 WO PCT/CN2021/121726 patent/WO2023050157A1/en active Application Filing
- 2021-09-29 GB GB2402725.2A patent/GB2624349A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010256125A (en) * | 2009-04-23 | 2010-11-11 | Hioki Ee Corp | Voltage detection apparatus and line voltage detecting apparatus |
| CN102954556A (en) * | 2011-08-23 | 2013-03-06 | 珠海格力电器股份有限公司 | Electric heater control circuit and air conditioner with same |
| CN202661534U (en) * | 2012-07-26 | 2013-01-09 | 南京华士电子科技有限公司 | Novel voltage detector |
| CN209992566U (en) * | 2019-05-20 | 2020-01-24 | 登钛电子技术(上海)有限公司 | Optical coupling isolation input voltage under-voltage detection circuit |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2023050157A1 (en) | 2023-04-06 |
| GB202402725D0 (en) | 2024-04-10 |
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