CN109061278B - Zero-crossing detection circuit with ultralow power consumption - Google Patents
Zero-crossing detection circuit with ultralow power consumption Download PDFInfo
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- CN109061278B CN109061278B CN201810628563.3A CN201810628563A CN109061278B CN 109061278 B CN109061278 B CN 109061278B CN 201810628563 A CN201810628563 A CN 201810628563A CN 109061278 B CN109061278 B CN 109061278B
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- 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
- G01R19/175—Indicating the instants of passage of current or voltage through a given value, e.g. passage through zero
Abstract
The invention provides a zero-crossing detection circuit with ultra-low power consumption, which is characterized by comprising a rectifying module, an auxiliary power module, a control module, a driving module, a control switch module and a zero-crossing detection module, wherein the rectifying module is connected with the auxiliary power module and the control switch module; the auxiliary power supply, the control circuit, the driving circuit and the control switch module are added in the traditional zero-crossing detection circuit, the zero-crossing detection circuit with ultralow standby power consumption is provided, the problem that the standby power consumption of the existing zero-crossing detection circuit is too high is solved, and the purpose of reducing the standby power consumption of products such as a single-live-wire electronic switch, a dimmer and the like is achieved.
Description
Technical Field
The invention relates to the field of alternating current circuits, in particular to a zero-crossing detection circuit with ultralow power consumption.
Background
In the design of products such as an electronic switch and a dimmer of a single live wire, the zero crossing point of mains supply is required to be used for multiple functions such as zero-crossing switching, timing triggering and the like, and the zero crossing point is usually obtained by directly dividing the mains supply voltage by using a resistor. The mains voltage is usually about 100V-240VAC, and under such a high voltage condition, a large amount of power, usually about 20mW-130mW, is consumed on the resistor, and this power consumption still exists in the standby state. With the wide application of low-power LEDs, the standby power consumption of a single-live-wire product is higher and higher, and the design requirement is usually at least lower than 10mW to ensure that most LEDs do not flicker, so the standby power consumption of a zero-crossing circuit needs to be reduced to meet the requirement.
Disclosure of Invention
The invention aims to provide a zero-crossing detection circuit with ultralow power consumption, which solves the problem that the standby power consumption of the conventional zero-crossing detection circuit is overhigh.
In order to achieve the purpose, the technical scheme of the invention is as follows:
a zero-crossing detection circuit with ultra-low power consumption is characterized by comprising a rectification module, an auxiliary power module, a control module, a driving module, a control switch module and a zero-crossing detection module, wherein the output end of the rectification module is respectively connected with the input end of the auxiliary power module and one input end of the control switch module, the output end of the auxiliary power module is respectively connected with the input end of the control module and one input end of the driving module, the output end of the control module is connected with the other input end of the driving module, the output end of the driving module is connected with the other input end of the control switch module, and the output end of the control switch module is connected with the input end of the zero-crossing detection module;
the control module comprises a diode, a first resistor, a second resistor and a first triode, wherein the anode of the diode is connected with an alternating current input, the cathode of the diode is connected with one end of the first resistor, the other end of the first resistor is respectively connected with one end of the second resistor and the base electrode of the first triode, and the emitting electrode of the first triode and the other end of the second resistor are grounded together;
the driving module comprises a third resistor, a fourth resistor, a fifth resistor, a sixth resistor, a seventh resistor, an eighth resistor, a ninth resistor, a second triode and a third triode, wherein the collector of the first triode is respectively connected with one ends of the third resistor and the fourth resistor, the other end of the third resistor is connected with the base of the third triode, the other end of the fourth resistor is respectively connected with one end of the fifth resistor and the base of the second triode, the other end of the fifth resistor is connected with the emitter of the second triode, the other end of the fifth resistor and the emitter of the second triode are connected with power supply voltage, the collector of the second triode is connected with one end of the sixth resistor, the other end of the sixth resistor is respectively connected with one ends of the seventh resistor and the eighth resistor, the other end of the seventh resistor is connected with the collector of the third triode, and the emitter of the third triode is grounded, the other end of the eighth resistor is connected with one end of a ninth resistor, and the other end of the ninth resistor is grounded;
the control switch module comprises a tenth resistor, an eleventh resistor and an MOS (metal oxide semiconductor) transistor, wherein the other end of the eighth resistor is connected with the grid electrode of the MOS transistor, one end of the tenth resistor is connected with a positive voltage, the other end of the tenth resistor is connected with one end of the eleventh resistor, and the other end of the eleventh resistor is connected with the drain electrode of the MOS transistor;
the zero-crossing detection module comprises a twelfth resistor, a thirteenth resistor, a fourteenth resistor and a fourth triode, wherein a source electrode of the MOS tube is connected with one end of the twelfth resistor, the other end of the twelfth resistor is respectively connected with one end of the thirteenth resistor and a base level of the fourth triode, one end of the fourteenth resistor is connected with a power voltage, the other end of the fourteenth resistor is connected with a collector electrode of the fourth triode, the other end of the thirteenth resistor and an emitter electrode of the fourth triode are grounded together, and the other end of the fourteenth resistor and the collector electrode of the fourth triode are used as output ends.
The invention has the advantages that: the zero-crossing detection circuit with ultralow standby power consumption is provided by adding an auxiliary power supply, a control circuit, a driving circuit and a control switch module part in the traditional zero-crossing detection circuit, wherein the driving circuit adopts a common emitter complementary push-pull circuit and constant current amplification, so that the problem of overhigh standby power consumption of the conventional zero-crossing detection circuit is solved, and the purpose of reducing the standby power consumption of products such as a single-live-wire electronic switch, a dimmer and the like is achieved through the scheme.
Drawings
FIG. 1 is a general framework of the present invention;
fig. 2 is a schematic circuit structure of the present invention.
Reference numerals:
1 rectification module
2 auxiliary power supply module
3 control module
4 drive module
5 control switch module
6 zero crossing detection module
First to fourteenth resistors R1 to 14
Q1~4 first ~ fourth triode
Q5 MOS pipe.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. 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.
The invention discloses a zero-crossing detection circuit with ultra-low power consumption, which is characterized by comprising a rectification module 1, an auxiliary power module 2, a control module 3, a driving module 4, a control switch module 5 and a zero-crossing detection module 6, wherein the output end of the rectification module 1 is respectively connected with the input end of the auxiliary power module 2 and one input end of the control switch module 5, the output end of the auxiliary power module 2 is respectively connected with the input end of the control module 3 and one input end of the driving module 4, the output end of the control module 3 is connected with the other input end of the driving module 4, the output end of the driving module 4 is connected with the other input end of the control switch module 5, and the output end of the control switch module 5 is connected with the input end of the zero-crossing detection module 6, as shown in figure 1.
As shown in fig. 2, the control module 3 includes a diode D, a first resistor R1, a second resistor R2, and a first transistor Q1, wherein an anode of the diode D is connected to the ac input CON, and the diode D is controlled to be turned on or off by a level of the ac input CON, a cathode of the diode D is connected to one end of the first resistor R1, another end of the first resistor R1 is respectively connected to one end of the second resistor R2 and a base of the first transistor Q1, and an emitter of the first transistor Q1 and another end of the second resistor R2 are commonly grounded.
As shown in fig. 2, the driving module 4 includes a third resistor R3, a fourth resistor R4, a fifth resistor R5, a sixth resistor R6, a seventh resistor R7, an eighth resistor R8, a ninth resistor R9, a second triode Q2 and a third triode Q3, a collector of the first triode Q1 is connected to one end of the third resistor R3 and one end of the fourth resistor R4, another end of the third resistor R3 is connected to a base of the third triode Q3, another end of the fourth resistor R4 is connected to one end of the fifth resistor R5 and a base of the second triode Q2, another end of the fifth resistor R5 is connected to an emitter of the second triode Q2, another end of the fifth resistor R2 and an emitter of the second triode Q2 are connected to a power supply voltage 2, a collector of the second triode Q2 is connected to one end of the sixth resistor R2, another end of the sixth resistor VCC is connected to one end of the seventh resistor R2 and the eighth resistor R2, the other end of the seventh resistor R7 is connected to the collector of the third transistor Q3, the emitter of the third transistor Q3 is grounded, the other end of the eighth resistor R8 is connected to one end of the ninth resistor R9, and the other end of the ninth resistor R9 is grounded.
The second triode Q2 and the third triode Q3 form a common emitter complementary push-pull circuit, the common emitter complementary push-pull circuit has voltage amplification capability, the output impedance of a collector is larger, the collector is not a control electrode, if the load is changed, or the voltage of an output end is changed, the original output current is basically not influenced, the constant current output characteristic is achieved, and the MOS tube can be stably driven to work.
As shown in fig. 2, the control switch module 5 includes a tenth resistor R10, an eleventh resistor R11 and a MOS transistor Q5, the other end of the eighth resistor R8 is connected to the gate of the MOS transistor Q5, one end of the tenth resistor R10 is connected to the positive voltage V +, the other end of the tenth resistor R10 is connected to one end of the eleventh resistor R11, and the other end of the eleventh resistor R11 is connected to the drain of the MOS transistor Q5, and in particular, the state of the MOS transistor Q5 is controlled by switching between high and low levels.
As shown in fig. 2, the zero-crossing detection module 6 includes a twelfth resistor R12, a thirteenth resistor R13, a fourteenth resistor R14 and a fourth transistor Q4, the source of the MOS transistor Q5 is connected to one end of the twelfth resistor R12, the other end of the twelfth resistor R12 is connected to one end of the thirteenth resistor R13 and the base of the fourth transistor Q4, respectively, the MOS transistor Q5 is turned off in a standby state to reduce the current passing through the tenth resistor R10 and the eleventh resistor R11, and the tenth resistor R10, the eleventh resistor R11, the twelfth resistor R12 and the thirteenth resistor R13 form a path for zero-crossing detection by turning on the switch; one end of the fourteenth resistor R14 is connected with a power supply voltage VCC1, the other end of the fourteenth resistor R14 is connected with a collector of the fourth triode Q4, the other end of the thirteenth resistor R13 is grounded with an emitter of the fourth triode Q4, the other end of the fourteenth resistor R14 and the collector of the fourth triode Q4 are used as output ends, the fourth triode Q4 is cut off when the pulsating voltage is lower than 0.6V, and the zero-crossing detection signal outputs a high level which is a low level at ordinary times.
Through the scheme, the standby power consumption of the zero-crossing detection circuit can be reduced by more than 95%, and the purpose of reducing the standby power consumption of products such as a single-live-wire electronic switch and a dimmer is achieved.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (1)
1. A zero-crossing detection circuit with ultra-low power consumption is characterized by comprising a rectifying module (1), an auxiliary power supply module (2), a control module (3), a driving module (4), a control switch module (5) and a zero-crossing detection module (6), the output end of the rectification module (1) is respectively connected with the input end of the auxiliary power supply module (2) and one input end of the control switch module (5), the output end of the auxiliary power supply module (2) is respectively connected with the input end of the control module (3) and one input end of the driving module (4), the output end of the control module (3) is connected with the other input end of the driving module (4), the output end of the driving module (4) is connected with the other input end of the control switch module (5), the output end of the control switch module (5) is connected with the input end of the zero-crossing detection module (6);
the control module (3) comprises a diode D, a first resistor R1, a second resistor R2 and a first triode Q1, wherein the anode of the diode D is connected with an alternating current input CON, the cathode of the diode D is connected with one end of a first resistor R1, the other end of the first resistor R1 is respectively connected with one end of a second resistor R2 and the base of a first triode Q1, and the emitter of the first triode Q1 and the other end of the second resistor R2 are grounded together;
the driving module (4) comprises a third resistor R3, a fourth resistor R4, a fifth resistor R5, a sixth resistor R6, a seventh resistor R7, an eighth resistor R8, a ninth resistor R9, a second triode Q2 and a third triode Q3, wherein a collector of the first triode Q1 is respectively connected with one end of the third resistor R3 and one end of the fourth resistor R4, the other end of the third resistor R3 is connected with a base of the third triode Q3, the other end of the fourth resistor R3 is respectively connected with one end of the fifth resistor R3 and the base of the second triode Q3, the other end of the fifth resistor R3 is connected with an emitter of the second triode Q3, the other end of the fifth resistor R3 and an emitter of the second triode Q3 are respectively connected with a collector of the sixth resistor R3, the other end of the sixth resistor R3 is respectively connected with one end of the seventh resistor R3 and the collector of the seventh resistor R3, the collector of the seventh resistor R3 and the seventh resistor R3, the emitter of the third triode Q3 is grounded, the other end of the eighth resistor R8 is connected to one end of a ninth resistor R9, and the other end of the ninth resistor R9 is grounded;
the control switch module (5) comprises a tenth resistor R10, an eleventh resistor R11 and a MOS transistor Q5, the other end of the eighth resistor R8 is connected with the gate of the MOS transistor Q5, one end of the tenth resistor R10 is connected with a positive voltage V +, the other end of the tenth resistor R10 is connected with one end of the eleventh resistor R11, and the other end of the eleventh resistor R11 is connected with the drain of the MOS transistor Q5;
the zero-crossing detection module (6) comprises a twelfth resistor R12, a thirteenth resistor R13, a fourteenth resistor R14 and a fourth triode Q4, the source of the MOS transistor Q5 is connected with one end of the twelfth resistor R12, the other end of the twelfth resistor R12 is respectively connected with one end of the thirteenth resistor R13 and the base level of the fourth triode Q4, one end of the fourteenth resistor R14 is connected with the power voltage VCC1, the other end of the fourteenth resistor R14 is connected with the collector of the fourth triode Q4, the other end of the thirteenth resistor R13 is grounded with the emitter of the fourth triode Q4, and the other end of the fourteenth resistor R14 and the collector of the fourth triode Q4 are used as output ends.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810628563.3A CN109061278B (en) | 2018-06-19 | 2018-06-19 | Zero-crossing detection circuit with ultralow power consumption |
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| CN201810628563.3A CN109061278B (en) | 2018-06-19 | 2018-06-19 | Zero-crossing detection circuit with ultralow power consumption |
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| CN109061278A CN109061278A (en) | 2018-12-21 |
| CN109061278B true CN109061278B (en) | 2020-11-13 |
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Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2864700Y (en) * | 2005-11-01 | 2007-01-31 | 海信集团有限公司 | Zero-cross detecting circuit and refrigerator employing same |
| CN102128973A (en) * | 2010-01-19 | 2011-07-20 | 深圳艾科创新微电子有限公司 | Voltage zero-crossing detecting circuit and DC-DC converter with same |
| CN201955387U (en) * | 2011-02-22 | 2011-08-31 | 武汉盛帆电子股份有限公司 | Zero-crossing detecting circuit with low power consumption for carrier wave communication |
| CN203688646U (en) * | 2014-01-22 | 2014-07-02 | 深圳长城开发科技股份有限公司 | Zero crossing detection circuit |
| KR20150015200A (en) * | 2013-07-31 | 2015-02-10 | 삼성전기주식회사 | Device for measuring frequency of power based on zero-crossing and method for measuring frequency of power based on zero-crossing |
| CN105938157A (en) * | 2016-06-06 | 2016-09-14 | 惠州小明太阳能投资管理有限公司 | Current type zero-crossing detection circuit and system suitable for high-frequency electronic switch |
| CN106950414A (en) * | 2017-02-24 | 2017-07-14 | 深圳陆巡科技有限公司 | Metal-oxide-semiconductor current sampling circuit and push-pull circuit |
| CN206818787U (en) * | 2017-06-29 | 2017-12-29 | 英麦科（厦门）微电子科技有限公司 | A kind of zero cross detection circuit for synchronous buck code converter |
| CN207114622U (en) * | 2017-07-07 | 2018-03-16 | 深圳拓邦股份有限公司 | A kind of list fiery line detection circuit, control circuit and switch |
-
2018
- 2018-06-19 CN CN201810628563.3A patent/CN109061278B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2864700Y (en) * | 2005-11-01 | 2007-01-31 | 海信集团有限公司 | Zero-cross detecting circuit and refrigerator employing same |
| CN102128973A (en) * | 2010-01-19 | 2011-07-20 | 深圳艾科创新微电子有限公司 | Voltage zero-crossing detecting circuit and DC-DC converter with same |
| CN201955387U (en) * | 2011-02-22 | 2011-08-31 | 武汉盛帆电子股份有限公司 | Zero-crossing detecting circuit with low power consumption for carrier wave communication |
| KR20150015200A (en) * | 2013-07-31 | 2015-02-10 | 삼성전기주식회사 | Device for measuring frequency of power based on zero-crossing and method for measuring frequency of power based on zero-crossing |
| CN203688646U (en) * | 2014-01-22 | 2014-07-02 | 深圳长城开发科技股份有限公司 | Zero crossing detection circuit |
| CN105938157A (en) * | 2016-06-06 | 2016-09-14 | 惠州小明太阳能投资管理有限公司 | Current type zero-crossing detection circuit and system suitable for high-frequency electronic switch |
| CN106950414A (en) * | 2017-02-24 | 2017-07-14 | 深圳陆巡科技有限公司 | Metal-oxide-semiconductor current sampling circuit and push-pull circuit |
| CN206818787U (en) * | 2017-06-29 | 2017-12-29 | 英麦科（厦门）微电子科技有限公司 | A kind of zero cross detection circuit for synchronous buck code converter |
| CN207114622U (en) * | 2017-07-07 | 2018-03-16 | 深圳拓邦股份有限公司 | A kind of list fiery line detection circuit, control circuit and switch |
Non-Patent Citations (1)
| Title |
|---|
| 一种新型AC电压过零检测方法及实现;孙建永 等;《微电子学》;20150630;第45卷(第3期);第349-351页 * |
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Denomination of invention: A Ultra Low Power Zero Crossing Detection Circuit Granted publication date: 20201113 Pledgee: Agricultural Bank of China Limited Shanghai Songjiang Sub-branch Pledgor: FEIDIAO ELECTRICAL APPLIANCES GROUP Co.,Ltd. Registration number: Y2024980005668 |