CN217469746U - Low-power consumption circuit - Google Patents
Low-power consumption circuit Download PDFInfo
- Publication number
- CN217469746U CN217469746U CN202221530177.9U CN202221530177U CN217469746U CN 217469746 U CN217469746 U CN 217469746U CN 202221530177 U CN202221530177 U CN 202221530177U CN 217469746 U CN217469746 U CN 217469746U
- Authority
- CN
- China
- Prior art keywords
- switch
- power supply
- circuit
- power consumption
- terminal
- 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.)
- Active
Links
Images
Abstract
The utility model discloses a low-power consumption circuit, this low-power consumption circuit includes: the relay is provided with an electromagnet and an armature, the armature is arranged in a power supply loop, and a load circuit is arranged in the power supply loop; the armature iron has working states of disconnecting the power supply circuit and connecting the power supply circuit under the action of the electromagnet; the electromagnet is provided with a first connecting end and a second connecting end, and the first connecting end is connected with a first switching power supply; the first switch is provided with a control end, a first end and a second end, the first end of the first switch is connected with the second connecting end, the second end of the first switch is grounded, and the control end of the first switch is suitable for receiving a starting signal; according to the arrangement, when the starting signal is not received, the electromagnet is not electrified, so that the power supply loop is disconnected, the power supply loop is powered off after being disconnected, the load circuit also stops working completely, and the power consumption in standby can be reduced.
Description
Technical Field
The utility model relates to an electronic circuit technical field, concretely relates to low-power consumption circuit.
Background
In the design of single-live wire electronic switches, dimmers and other products, a zero-crossing detection circuit of mains supply is required to be used for multiple functions of zero-crossing switching, timing triggering and the like, and the zero-crossing detection circuit is usually obtained by directly dividing mains supply voltage by using a resistor. The mains voltage is usually about 100V-240VAC, under such a high voltage condition, a resistor consumes a relatively large power, usually about 20mW-130mW, and this power consumption still exists in the standby state, so that the power consumption of the zero-crossing detection circuit in the standby state is relatively high.
SUMMERY OF THE UTILITY MODEL
Therefore, the to-be-solved technical problem of the utility model lies in the higher problem of zero-crossing detection circuit's consumption when standby state that exists among the prior art to a low-power consumption circuit is provided.
In order to achieve the above object, an embodiment of the present invention provides a low power consumption circuit, which includes: the relay is provided with an electromagnet and an armature, the armature is arranged in a power supply loop, and a load circuit is arranged in the power supply loop; the armature iron has working states of disconnecting the power supply circuit and connecting the power supply circuit under the action of the electromagnet; the electromagnet is provided with a first connecting end and a second connecting end, and the first connecting end is connected with a first switching power supply; the first switch is provided with a control end, a first end and a second end, the first end of the first switch is connected with the second connecting end, the second end of the first switch is grounded, and the control end of the first switch is suitable for receiving a starting signal; when the starting signal is received, the first end of the first switch and the second end of the first switch are conducted, and the electromagnet is electrified; when the starting signal is not received, the first end of the first switch and the second end of the first switch are disconnected, and the electromagnet is not electrified.
Optionally, the first switch is at least a triode or a MOS transistor.
Optionally, the low power consumption circuit further comprises: the signal receiving port is connected with the control end of the first switch through a first resistor; the signal receiving port is adapted to receive the activation signal.
Optionally, the low power consumption circuit further comprises: and the cathode of the first diode is connected with the first connecting end, and the anode of the first diode is connected with the second connecting end.
Optionally, the load circuit is a zero-crossing detection circuit, and the zero-crossing detection circuit is configured to detect whether the power supply circuit is in a zero-crossing state; the starting signal is a signal for starting zero-crossing detection.
Optionally, the zero-crossing detection circuit includes: the control end of the second switch is connected with the power supply loop, the first end of the second switch is connected with a second switch power supply, and the second end of the second switch is grounded; and the zero-crossing detection port is connected with the first end of the second switch through a protection resistor.
Optionally, the second switch is an optical coupler switch, a control end of the optical coupler switch includes a control end and a control end, and the control end are connected in the power supply loop.
Optionally, when the power supply loop is connected, current passes through the control end and the control end in sequence; the zero-cross detection circuit further includes: and the cathode of the second diode is connected with the control end, and the anode of the second diode is connected with the control end.
Optionally, a filter circuit is disposed in the zero-crossing detection circuit.
Optionally, a current limiting resistor is arranged in the power supply loop.
Compared with the prior art, the utility model, have following advantage:
1. the embodiment of the utility model provides a low-power consumption circuit, this low-power consumption circuit includes: the relay is provided with an electromagnet and an armature, the armature is arranged in a power supply loop, and a load circuit is arranged in the power supply loop; the armature iron has working states of disconnecting the power supply circuit and connecting the power supply circuit under the action of the electromagnet; the electromagnet is provided with a first connecting end and a second connecting end, and the first connecting end is connected with a first switching power supply; the first switch is provided with a control end, a first end and a second end, the first end of the first switch is connected with the second connecting end, the second end of the first switch is grounded, and the control end of the first switch is suitable for receiving a starting signal; when the starting signal is received, the first end of the first switch and the second end of the first switch are conducted, and the electromagnet is electrified; when the starting signal is not received, the first end of the first switch and the second end of the first switch are disconnected, and the electromagnet is not electrified.
According to the arrangement, when the starting signal is not received, namely in a standby state, the first end of the first switch and the second end of the first switch are disconnected, so that the electromagnet is not electrified, the power supply loop is disconnected after being disconnected, and the load circuit also stops working completely. When the load circuit is a zero-cross detection circuit or other loads, the power consumption during standby can be reduced. When the starting signal is received, the first end of the first switch and the second end of the first switch are conducted, the electromagnet is electrified, so that the power supply loop is conducted, and the power supply loop can supply power to the load circuit after being conducted.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and obviously, the drawings in the following description are some embodiments of the present invention, and for a worker in the field, without creative efforts, other drawings can be obtained according to the drawings.
Fig. 1 is the overall structure schematic diagram of the low power consumption circuit according to the embodiment of the present invention.
Reference numerals:
1. a signal receiving port; 2. a zero-crossing detection port; 3. an electromagnet; 4. an armature;
r1, a first resistor; r2, a second resistor; r3, third resistor; r4, fourth resistor; r5, fifth resistor; r6, current limiting resistor;
d1, a first diode; d2, a second diode;
q1, a first switch; q2, a second switch; q3, a third switch;
l, a live wire; n, a zero line; c1, a first capacitance; c2, a second capacitor;
K. a relay.
Detailed Description
The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by ordinary workers in the field without creative work belong to the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; the two elements may be directly connected or indirectly connected through an intermediate medium, or may be communicated with each other inside the two elements, or may be wirelessly connected or wired connected. The specific meaning of the above terms in the present invention can be understood in specific cases for ordinary workers in the art.
Furthermore, the technical features mentioned in the different embodiments of the invention described below can be combined with each other as long as they do not conflict with each other.
In the design of products such as electronic switches and dimmers of single live wire, a zero-crossing detection circuit 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 detection circuit is usually obtained by directly dividing mains supply voltage by adopting a resistor. The mains voltage is usually about 100V-240VAC, and under such a high-voltage condition, a resistor consumes a relatively large power, usually about 20mW-130mW, which still exists in the standby state, so that the power consumption of the zero-crossing detection circuit in the standby state is relatively high.
Therefore, the to-be-solved technical problem of the utility model lies in the higher problem of zero-crossing detection circuit's consumption when standby state that exists among the prior art to a low-power consumption circuit is provided.
Example 1
As shown in fig. 1, an embodiment of the present invention provides a low power consumption circuit, which includes a relay K and a first switch Q1.
Specifically, in the embodiment of the present invention, the electromagnet 3 and the armature 4 are disposed in the relay K, the armature 4 is disposed in the power supply circuit, and the load circuit is disposed in the power supply circuit. When the relay K works, the armature 4 has a working state of disconnecting the power supply circuit and connecting the power supply circuit under the action of the electromagnet 3. In an embodiment of the present invention, the power supply loop is formed by connecting a live line L and a neutral line N.
The electromagnet 3 is provided with a first connecting end and a second connecting end, and the first connecting end and the second connecting end are used for conducting current, so that the electromagnet 3 generates magnetism. The first connection end is in power connection with a first switch Q1. Then, a first switch Q1 is provided with a control terminal, a first terminal and a second terminal, the first terminal of the first switch Q1 is connected with the second connection terminal, the second terminal of the first switch Q1 is grounded, and the control terminal of the first switch Q1 is adapted to receive an activation signal.
Specifically, when the activation signal is received, the first terminal of the first switch Q1 and the second terminal of the first switch Q1 are turned on, and the electromagnet 3 is energized. When the start signal is not received, the first end of the first switch Q1 and the second end of the first switch Q1 are opened, and the electromagnet 3 is not electrified.
In practical applications, when the user wants to perform the zero-crossing detection and the start signal is the signal for starting the zero-crossing detection, the start signal may be a high level or a low level in the electrical signal. After the control terminal receives the starting signal, the first terminal of the first switch Q1 and the second terminal of the first switch Q1 are conducted, and the first switch Q1 power supply can supply power to the electromagnet 3, so that the armature 4 is communicated with the power supply loop, the power supply loop supplies power, and then the load circuit can be supplied with power. Likewise, when the activation signal is not received, that is, in the standby state, the first terminal of the first switch Q1 and the second terminal of the first switch Q1 are always in the open state, so that the electromagnet 3 is not energized, and the power supply circuit is disconnected, and the power supply circuit is de-energized after being disconnected, so that the load circuit also completely stops operating. When the load circuit is a zero-crossing detection circuit or other loads, the zero-crossing detection circuit or other loads can be completely powered off in a standby state, the system does not consume redundant electric quantity, and more power consumption is saved for the standby state.
Further, in an optional embodiment of the present invention, the first switch Q1 is at least a triode or a MOS transistor. Of course, those skilled in the art can change the type of the first switch Q1 according to practical situations, and this embodiment is merely illustrative, but not limited to this, and the same technical effects can be achieved.
Further, in an optional embodiment of the present invention, the low power consumption circuit further includes a signal receiving port 1, the signal receiving port 1 is connected to the control terminal of the first switch Q1 through a first resistor R1, and the signal receiving port 1 is adapted to receive the start signal.
Further, in an optional embodiment of the present invention, the low power consumption circuit further includes a first diode D1, a cathode of the first diode D1 is connected to the first connection terminal, and an anode of the first diode D1 is connected to the second connection terminal.
Further, in an optional embodiment of the present invention, the load circuit is a zero-crossing detection circuit, the zero-crossing detection circuit is used for detecting whether the power supply loop is in a zero-crossing state, and the start signal is a signal for starting zero-crossing detection.
Further, in an optional embodiment of the present invention, the zero-crossing detection circuit includes a second switch Q2 and a zero-crossing detection port 2, the control end of the second switch Q2 is connected to the power supply loop, the first end of the second switch Q2 is connected to the power supply of the second switch Q2, and the second end of the second switch Q2 is grounded through a fourth resistor R4. The zero-crossing detection port 2 is connected with a first end of the second switch Q2 through a protection resistor. In the embodiment of the present invention, the protection resistor includes a second resistor R2 and a third resistor R3 connected in series.
Specifically, in the embodiment of the present invention, the second switch Q2 is an optical coupling switch, the control end of the optical coupling switch includes two ends of control one end and control, the control one end with two ends of control are connected in the power supply loop. When the power supply loop is communicated, the current sequentially passes through the control end and the control end.
Further, in an optional embodiment of the present invention, the zero-cross detection circuit further includes a second diode D2, a cathode of the second diode D2 is connected to the control end, and an anode of the second diode D2 is connected to the control end.
Further, in an optional embodiment of the present invention, a filter circuit is disposed in the zero-crossing detection circuit. The filter circuit comprises a third switch Q3, a first capacitor C1 and a second capacitor C2. Specifically, a control end of the third switch Q3 is connected to the second end of the optocoupler switch through a fifth resistor R5, a first end of the third switch Q3 is connected between the second resistor R2 and the third resistor R3, and a second end of the third switch Q3 is grounded. One end of the first capacitor C1 is connected to the control end of the third switch Q3, and the other end of the first capacitor C1 is grounded. One end of a second capacitor C2 is connected to the zero-crossing detection port 2, and the other end of the second capacitor C2 is grounded. Of course, the third switch Q3 is at least a transistor or a MOS transistor. Those skilled in the art can change the type of the third switch Q3 according to practical situations, and this embodiment is only for illustration, but not for limitation, and can achieve the same technical effect.
Further, in an optional embodiment of the present invention, a current limiting resistor R6 is disposed in the power supply loop.
It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Variations and modifications in other variations may occur to those skilled in the art based upon the foregoing description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications can be made without departing from the scope of the invention.
Claims (10)
1. A low power consumption circuit, comprising:
the relay (K) is provided with an electromagnet (3) and an armature (4), the armature (4) is arranged in a power supply loop, and a load circuit is arranged in the power supply loop; the armature iron (4) has working states of disconnecting the power supply circuit and connecting the power supply circuit under the action of the electromagnet (3);
the electromagnet (3) is provided with a first connecting end and a second connecting end, and the first connecting end is connected with a power supply of a first switch (Q1);
a first switch (Q1) having a control terminal, a first terminal and a second terminal, the first terminal of the first switch (Q1) being connected to the second connection terminal, the second terminal of the first switch (Q1) being connected to ground, the control terminal of the first switch (Q1) being adapted to receive an activation signal;
when the starting signal is received, a first end of the first switch (Q1) and a second end of the first switch (Q1) are conducted, the electromagnet (3) is electrified, and the armature (4) is communicated with the power supply circuit; when the starting signal is not received, the first end of the first switch (Q1) and the second end of the first switch (Q1) are disconnected, the electromagnet (3) is not electrified, and the power supply loop is disconnected.
2. The low power consumption circuit of claim 1, wherein the first switch (Q1) is at least a triode or a MOS transistor.
3. The low power consumption circuit of claim 2, further comprising:
a signal receiving port (1) connected to a control terminal of the first switch (Q1) through a first resistor (R1); the signal receiving port (1) is adapted to receive the activation signal.
4. The low power consumption circuit according to any one of claims 1 to 3, further comprising:
a first diode (D1), a cathode of the first diode (D1) being connected to the first connection terminal, and an anode of the first diode (D1) being connected to the second connection terminal.
5. The low power consumption circuit according to any one of claims 1 to 3, wherein the load circuit is a zero-crossing detection circuit, and the zero-crossing detection circuit is configured to detect whether the power supply loop is in a zero-crossing state; the starting signal is a signal for starting zero-crossing detection.
6. The low power consumption circuit of claim 5, wherein the zero crossing detection circuit comprises:
a second switch (Q2), a control terminal of the second switch (Q2) is connected with the power supply loop, a first terminal of the second switch (Q2) is connected with a second switch (Q2) power supply, and a second terminal of the second switch (Q2) is grounded;
a zero-crossing detection port (2) connected to a first terminal of the second switch (Q2) through a protection resistor.
7. The low power consumption circuit according to claim 6, wherein the second switch (Q2) is an optocoupler switch, and a control terminal of the optocoupler switch comprises a control terminal and a control terminal, and the control terminal are connected in the power supply loop.
8. The low power consumption circuit of claim 7, wherein when the power supply loop is connected, current passes through the control end and the control end in sequence;
the zero-cross detection circuit further includes:
a second diode (D2), a cathode of the second diode (D2) being connected to the control terminal, and an anode of the second diode (D2) being connected to the control terminal.
9. The low power consumption circuit according to claim 8, wherein a filter circuit is disposed in the zero-crossing detection circuit.
10. A low power consumption circuit according to any of claims 6 to 9, characterized in that a current limiting resistor (R6) is provided in the supply loop.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221530177.9U CN217469746U (en) | 2022-06-16 | 2022-06-16 | Low-power consumption circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221530177.9U CN217469746U (en) | 2022-06-16 | 2022-06-16 | Low-power consumption circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217469746U true CN217469746U (en) | 2022-09-20 |
Family
ID=83238477
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221530177.9U Active CN217469746U (en) | 2022-06-16 | 2022-06-16 | Low-power consumption circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217469746U (en) |
-
2022
- 2022-06-16 CN CN202221530177.9U patent/CN217469746U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109449692B (en) | Adapter and adapter module | |
| CN101217023A (en) | Display power control system | |
| CN111399429A (en) | Single live wire switch multi-control system | |
| CN203561847U (en) | Standby circuit control system with low power consumption | |
| CN217469746U (en) | Low-power consumption circuit | |
| CN110011403A (en) | Power source automatic switching system and electronic equipment | |
| CN112072741A (en) | One-key starting system and method for household energy storage system | |
| CN114915146A (en) | Low-power consumption circuit | |
| CN203537054U (en) | Double-input switching device of single-phase uninterruptable power supply | |
| CN112003599A (en) | Novel solid-state relay and control method thereof | |
| CN111223715B (en) | Load switch | |
| CN213240469U (en) | Fuse detection circuit, communication power supply system and communication system | |
| CN102377164B (en) | Energy-efficient leakage detection protection circuit | |
| CN215419719U (en) | Automatic switching device for alternating current and direct current power supplies of vehicle-mounted equipment | |
| CN212258925U (en) | Novel solid-state relay | |
| CN220553391U (en) | Switch module for contactor and contactor module | |
| CN219456753U (en) | Control circuit capable of switching passive output and active output | |
| JP2930333B2 (en) | Power plug disconnection detection device | |
| CN209913184U (en) | Intelligent plugboard with functions of accurate management and control of electric load and over-threshold alarm | |
| CN215895320U (en) | Temperature control circuit and heating device | |
| CN214799018U (en) | Power supply circuit of circuit breaker | |
| CN214045405U (en) | Circuit for reducing standby power consumption and household appliance | |
| CN213367474U (en) | Standby power supply uninterrupted power supply circuit and power supply | |
| CN216902684U (en) | Start control circuit and contactor equipment | |
| CN215870725U (en) | Socket short-circuit protection circuit and socket |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |