CN204887388U - Energy -conserving circuit of automatic standby of ultralow sound - Google Patents
Energy -conserving circuit of automatic standby of ultralow sound Download PDFInfo
- Publication number
- CN204887388U CN204887388U CN201520459061.4U CN201520459061U CN204887388U CN 204887388 U CN204887388 U CN 204887388U CN 201520459061 U CN201520459061 U CN 201520459061U CN 204887388 U CN204887388 U CN 204887388U
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- relay
- subwoofer
- mcu chip
- power amplifier
- transformer
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Abstract
The utility model relates to an energy -conserving circuit of automatic standby of ultralow sound. Wherein, this circuit includes MCU chip and the signal detection module who is connected with the MCU chip, and one end is connected with the MCU chip, relay that the other end and power and subwoofer power amplifier are connected. Signal detection module is connected with the subwoofer power amplifier, is provided with the transformer for MCU chip supply + 5V's operating voltage on the MCU chip, is provided with the TRAN2 transformer of being connected with the relay on the subwoofer power amplifier. The utility model discloses have convenient to use and energy -conserving effect.
Description
Technical field
The utility model relates to audio amplifier circuit field, particularly a kind of subwoofer automatic stand-by energy-saving circuit being applied to the automatic stand-by field of active super low voice.
Background technology
At present, the subwoofer circuit of market lacks the function of automatic stand-by.During use, when music terminates, people is needed to close subwoofer for going; Playing subwoofer to continue, still needing artificial going to open subwoofer.Not only there is the inconvenience used not, and compare waste electricity.
Utility model content
In view of the above problems, the purpose of this utility model is to provide a kind of easy to use and energy-conservation subwoofer automatic stand-by energy-saving circuit.
For achieving the above object, a kind of subwoofer automatic stand-by energy-saving circuit that the utility model provides, is characterized in that, the signal detection module that this circuit comprises MCU chip and is connected with MCU chip, and one end is connected with MCU chip, the relay that the other end is connected with power supply and subwoofer power amplifier.Signal detection module is connected with subwoofer power amplifier.MCU chip is provided with to the transformer of the operating voltage of MCU chip supply+5V.Subwoofer power amplifier is provided with the TRAN2 transformer be connected with relay.When signal detection module detects that subwoofer power amplifier has signal to export, standby signal STANBY sends high level to relay by a pin of MCU chip, there is voltage on the coil both sides of relay, Control is to the conducting of the transformer TRAN2 input power supply of subwoofer power amplifier, relay adhesive, transformer TRAN2 connects, and for subwoofer power amplifier is powered, subwoofer enters operating state.When signal detection module detects that subwoofer power amplifier does not have signal to export, standby signal STANBY sends low level to relay by a pin of MCU chip, the coil of relay does not have pressure reduction, relay not adhesive, transformer TRAN2 disconnects, subwoofer power amplifier is for part power-off, and subwoofer enters holding state.
In some implementations, when standby signal STANBY sends low level to relay by a pin of MCU chip, the resistance R266 and the triode Q43 that excite the coil both sides of relay to have voltage between described MCU chip and relay, is provided with; When standby signal STANBY sends low level to relay by a pin of MCU chip, between described MCU chip and relay, be provided with the triode C1815 and the triode C2383 that make the coil both sides of relay there is no voltage.
The utility model beneficial effect has easy to use and energy-conservation effect.Due to the operating voltage adopting a small-sized transformer first to provide+5V to a small-sized MCU chip.At what a standby program of MCU chip inside programming.Such design supper-intelligent is energy-conservation, and when music terminates time, subwoofer enters holding state automatically, does not need artificial going to close subwoofer; In time continuing there is music, subwoofer enters operating state automatically, does not need artificial going to open subwoofer.Play the effect of intelligent power saving, just meet the Intellectualized Tendency of present people and the requirement of energy-conserving and environment-protective.Practical easy to use and energy-conservation effect.
Accompanying drawing explanation
Fig. 1 is theory diagram of the present utility model;
Fig. 2 is circuit diagram of the present utility model.
Embodiment
Below in conjunction with accompanying drawing, utility model is described in further detail.
As shown in Figure 1-2, a kind of subwoofer automatic stand-by energy-saving circuit that the utility model provides, is characterized in that, the signal detection module that this circuit comprises MCU chip and is connected with MCU chip, and one end is connected with MCU chip, the relay that the other end is connected with power supply and subwoofer power amplifier.Signal detection module is connected with subwoofer power amplifier.MCU chip is provided with to the transformer of the operating voltage of MCU chip supply+5V.Subwoofer power amplifier is provided with the TRAN2 transformer be connected with relay.When signal detection module detects that subwoofer power amplifier has signal to export, standby signal STANBY sends high level to relay by a pin of MCU chip, there is voltage on the coil both sides of relay, Control is to the conducting of the transformer TRAN2 input power supply of subwoofer power amplifier, relay adhesive, transformer TRAN2 connects, and for subwoofer power amplifier is powered, subwoofer enters operating state.When signal detection module detects that subwoofer power amplifier does not have signal to export, standby signal STANBY sends low level to relay by a pin of MCU chip, the coil of relay does not have pressure reduction, relay not adhesive, transformer TRAN2 disconnects, subwoofer power amplifier is for part power-off, and subwoofer enters holding state.When standby signal STANBY sends low level to relay by a pin of MCU chip, between MCU chip and relay, be provided with the resistance R266 and the triode Q43 that excite the coil both sides of relay to have voltage.When standby signal STANBY sends low level to relay by a pin of MCU chip, between MCU chip and relay, be provided with the triode C1815 and the triode C2383 that make the coil both sides of relay there is no voltage.
During use, when the signal detection module of inside detects that signal exports time, standby signal STANBY sends high level by a pin of MCU chip, through resistance R266, triode Q43 is worked, and the chien shih Q43 of the base stage and emitter that are carried in triode Q43 because of the conducting of triode Q43 collector and emitter through the direct voltage that D29 rectifier diode goes out works, there is voltage on the coil both sides of relay J D5A, thus relay adhesive, Control the conducting of the transformer TRAN2 input power supply of powering to power amplifier, relay adhesive, transformer TRAN2 connects, for subwoofer power amplifier is powered, subwoofer enters operating state.
When inside signal detection module the regular hour detect do not have signal export in, standby signal STANBY sends low level by a pin of MCU chip, triode C1815, C2383 are quit work, thus relay coil does not have pressure reduction, relay disconnects not adhesive, transformer TRAN2 disconnects, and the power-off of subwoofer power amplifier part, enters holding state.
Such design supper-intelligent is energy-conservation, and when music terminates time, subwoofer enters holding state automatically, does not need artificial going to close subwoofer; In time continuing there is music, subwoofer enters operating state automatically, does not need artificial going to open subwoofer.Play the effect of intelligent power saving, just meet the Intellectualized Tendency of present people and the requirement of energy-conserving and environment-protective.
Above-described is only execution modes more of the present utility model.For the person of ordinary skill of the art, under the prerequisite not departing from the utility model creation design, can also make some distortion and improvement, these all belong to the protection range of utility model.
Claims (2)
1. a subwoofer automatic stand-by energy-saving circuit, is characterized in that, the signal detection module that this circuit comprises MCU chip and is connected with MCU chip, and one end is connected with MCU chip, the relay that the other end is connected with power supply and subwoofer power amplifier;
Described signal detection module is connected with subwoofer power amplifier;
Described MCU chip is provided with to the transformer of the operating voltage of MCU chip supply+5V;
Described subwoofer power amplifier is provided with the TRAN2 transformer be connected with relay;
When described signal detection module detects that subwoofer power amplifier has signal to export, standby signal STANBY sends high level to relay by a pin of MCU chip, there is voltage on the coil both sides of relay, Control is to the conducting of the transformer TRAN2 input power supply of subwoofer power amplifier, relay adhesive, transformer TRAN2 connects, and for subwoofer power amplifier is powered, subwoofer enters operating state;
When described signal detection module detects that subwoofer power amplifier does not have signal to export, standby signal STANBY sends low level to relay by a pin of MCU chip, the coil of relay does not have pressure reduction, relay not adhesive, transformer TRAN2 disconnects, subwoofer power amplifier is for part power-off, and subwoofer enters holding state.
2. a kind of subwoofer automatic stand-by energy-saving circuit according to claim 1, it is characterized in that, when standby signal STANBY sends low level to relay by a pin of MCU chip, between described MCU chip and relay, be provided with the resistance R266 and the triode Q43 that excite the coil both sides of relay to have voltage; When standby signal STANBY sends low level to relay by a pin of MCU chip, between described MCU chip and relay, be provided with the triode C1815 and the triode C2383 that make the coil both sides of relay there is no voltage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520459061.4U CN204887388U (en) | 2015-06-29 | 2015-06-29 | Energy -conserving circuit of automatic standby of ultralow sound |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520459061.4U CN204887388U (en) | 2015-06-29 | 2015-06-29 | Energy -conserving circuit of automatic standby of ultralow sound |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204887388U true CN204887388U (en) | 2015-12-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520459061.4U Active CN204887388U (en) | 2015-06-29 | 2015-06-29 | Energy -conserving circuit of automatic standby of ultralow sound |
Country Status (1)
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| CN (1) | CN204887388U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111198526A (en) * | 2020-01-09 | 2020-05-26 | 广州美立达电子技术有限公司 | Energy-saving and environment-friendly system and using method thereof |
-
2015
- 2015-06-29 CN CN201520459061.4U patent/CN204887388U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111198526A (en) * | 2020-01-09 | 2020-05-26 | 广州美立达电子技术有限公司 | Energy-saving and environment-friendly system and using method thereof |
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