CN203434941U - Power amplifier with standby function - Google Patents
Power amplifier with standby function Download PDFInfo
- Publication number
- CN203434941U CN203434941U CN201320382133.0U CN201320382133U CN203434941U CN 203434941 U CN203434941 U CN 203434941U CN 201320382133 U CN201320382133 U CN 201320382133U CN 203434941 U CN203434941 U CN 203434941U
- Authority
- CN
- China
- Prior art keywords
- power amplifier
- power
- relay
- standby module
- amplifier
- 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.)
- Expired - Lifetime
Links
Abstract
A power amplifier with a standby function comprises a standby module and a relay. After passing through a power amplifier power switch, an external power source is connected with the input end of a power source of the standby module, and the external power source is connected with the input end of a power amplifier power source after sequentially passing through the power amplifier power switch and a contact of the relay. The standby module supplies power for the relay. The input end of the standby module is connected with the signal input end of the power amplifier. When the power switch is connected, the standby module is powered on to work and after the relay conducts attraction to work, the power amplifier is also powered on to work. When no signal input (lower than 10mV) exists in a signal input end A of the power amplifier and a signal input end B of the power amplifier, the standby module starts timing, after 15 or 30 minutes, the standby module enables power supply of the relay to be cut off, the contact of the relay is disconnected, and the power amplifier cannot work because of power failure. When single input exists in the power amplifier again, the standby module drives the relay to conduct attraction to work and the power amplifier is powered on to work again. After signal input does not exist for 13 or 30 minutes, the processes are repeated continuously, and therefore the purpose of energy saving is achieved.
Description
Technical field
The utility model relates to power amplifier, especially has the power amplifier of idle function.
Background technology
Existing power amplifier does not generally have idle function, makes power amplifier all the time all in running order, and power consumption is larger.
Summary of the invention
Technical problem to be solved in the utility model is to provide a kind of power amplifier with idle function, makes power amplifier enter standby mode without operation in the situation that, to reduce its power consumption.
For solving the problems of the technologies described above, the technical solution of the utility model is: a kind of power amplifier with idle function, comprise standby module and relay, external power source is connected with described standby modular power source input after by amplifier power supply switch, and external power source is successively by being connected with amplifier power supply input behind the contact of described amplifier power supply switch and relay; Described standby module is powered to described relay; The input of described standby module is connected with the signal input part of power amplifier.When mains switch is opened, standby module obtains electric work, relay close make after suction work power amplifier also electric work.When signal A, the B of power amplifier signal input part do not have signal input (or being less than 10mV), standby module starts timing, and after 15 or 30 minutes, standby modular circuit is closed relay power supply, and relay contact disconnects, and power amplifier is not because having power supply not work.When there being power amplifier again to have signal when input, standby module drive relay adhesive work, power amplifier again electric work; And do not have signal input after 13 or 30 minutes, to continue to repeat above process, thereby reach energy-conservation object.
As improvement, the rated power of described standby module is 0.5W.
The beneficial effect that the utility model compared with prior art brought is:
In power amplifier, add standby module, make power amplifier not enter holding state when there is no signal input, to reach energy-conservation object.
Accompanying drawing explanation
Fig. 1 is the utility model structured flowchart.
Embodiment
Below in conjunction with Figure of description, the utility model is described in further detail.
As shown in Figure 1, a kind of power amplifier with idle function, the standby module and the relay that comprise 0.5W, external power source is connected with described standby modular power source input after by amplifier power supply switch, and external power source is successively by being connected with amplifier power supply input behind the contact of described amplifier power supply switch and relay; Described standby module is powered to described relay; The input of described standby module is connected with the signal input part of power amplifier.When mains switch is opened, standby module obtains electric work, relay close make after suction work power amplifier also electric work.When signal A, the B of power amplifier signal input part do not have signal input (or being less than 10mV), standby module starts timing, and after 15 or 30 minutes, standby modular circuit is closed relay power supply, and relay contact disconnects, and power amplifier is not because having power supply not work.When there being power amplifier again to have signal when input, standby module drive relay adhesive work, power amplifier again electric work; And do not have signal input after 13 or 30 minutes, to continue to repeat above process, thereby reach energy-conservation object.
Claims (2)
1. a power amplifier with idle function, it is characterized in that: comprise standby module and relay, external power source is connected with described standby modular power source input after by amplifier power supply switch, and external power source is successively by being connected with amplifier power supply input behind the contact of described amplifier power supply switch and relay; Described standby module is powered to described relay; The input of described standby module is connected with the signal input part of power amplifier.
2. a kind of power amplifier with idle function according to claim 1, is characterized in that: the rated power of described standby module is 0.5W.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320382133.0U CN203434941U (en) | 2013-06-28 | 2013-06-28 | Power amplifier with standby function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320382133.0U CN203434941U (en) | 2013-06-28 | 2013-06-28 | Power amplifier with standby function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203434941U true CN203434941U (en) | 2014-02-12 |
Family
ID=50063955
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320382133.0U Expired - Lifetime CN203434941U (en) | 2013-06-28 | 2013-06-28 | Power amplifier with standby function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203434941U (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 |
-
2013
- 2013-06-28 CN CN201320382133.0U patent/CN203434941U/en not_active Expired - Lifetime
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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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140212 |
|
| CX01 | Expiry of patent term |