CN202634277U - Redundance ultra-long life switch power supply - Google Patents
Redundance ultra-long life switch power supply Download PDFInfo
- Publication number
- CN202634277U CN202634277U CN 201220269225 CN201220269225U CN202634277U CN 202634277 U CN202634277 U CN 202634277U CN 201220269225 CN201220269225 CN 201220269225 CN 201220269225 U CN201220269225 U CN 201220269225U CN 202634277 U CN202634277 U CN 202634277U
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- circuit
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- transformer
- current
- switch
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Abstract
The utility model discloses a redundance ultra-long life switch power supply. The redundance ultra-long life switch power supply comprises a rectifier circuit, a switch transformer, a rectifier and filter circuit, a capacitor backup circuit, a microcontroller, a resistor voltage division circuit, a switch tube backup circuit and a current transformer, wherein the rectifier circuit is used for converting an alternating current of an external electric supply into a direct current; the switch transformer is used for converting the rectified direct current into a voltage required by an LED (Light Emitting Diode) light source; the rectifier and filter circuit is used for filtering ripples of the direct current output by the switch transformer; the resistor voltage division circuit is used for monitoring the output ripples of the rectifier and filter circuit in real time, and sending an abnormal signal to the microcontroller when a filter capacitor is abnormal; the microcontroller is used for switching the original filter capacitor into the capacitor backup circuit through a relay; the current transformer is used for monitoring the power switch tube of the switch transformer and sending the abnormal signal to the microcontroller when the switch tube is abnormal; and the controller is used for switching the original power switch to the switch tube backup circuit through a relay.
Description
Technical field
The utility model relates to a kind of Switching Power Supply, specifically, relates to a kind of redundance extra long life Switching Power Supply of supporting led light source.
Background technology
Led light source generally can reach 60,000 to 100,000 hours useful life; Longer more than 10 times than the conventional light source life-span, but guarantee that the LED life-span that will to arrive 60,000 to 100,000 hours prerequisites useful life be the Switching Power Supply of driving LED also will reach more than 100,000 hours, and the life-span of present Switching Power Supply was generally 30,000 to 50,000 hours; Because in Switching Power Supply; All must use switching tube and electrochemical capacitor, what wherein influence most useful life is the filter capacitor (electrochemical capacitor) in the plastic filter circuit, because filter capacitor inside is electrolyte; In case use the electrolyte can be very thirsty for a long time, cause the electrochemical capacitor capacity to reduce or lost efficacy; On the other hand, all power in the Switching Power Supply are all exported through behind the switching tube, and switching tube plays crucial effects in power supply, in case switching tube lost efficacy, a whole switch power supply just lost efficacy.Therefore, after making a whole lamp to led light source and driving switch power supply, led light source does not also have bad, and Switching Power Supply is just bad, even Switching Power Supply gone bad and cause wrapping intact LED and also burn out, and can not really bring into play the long-life characteristics of led light source like this.
The utility model content
To above deficiency, the utility model provides a kind of redundance extra long life Switching Power Supply that can prolong the service time of LED light fixture greatly, and it comprises and is used for converting alternating current to galvanic rectification circuit; Be used for the direct current that rectification is come out is converted to the switch transformer of the required voltage of load; The current rectifying and wave filtering circuit that is used for the galvanic ripple of filtering switch transformer output; The filter capacitor that it also is included in current rectifying and wave filtering circuit occurs when unusual; Electric capacity fallback circuit as the backup filter capacitor of current rectifying and wave filtering circuit; And the output ripple of monitoring current rectifying and wave filtering circuit in real time, and when output ripple exceeds predetermined maximum, filter capacitor switched to the microcontroller of electric capacity fallback circuit.
Said microcontroller is monitored the output ripple of current rectifying and wave filtering circuit through resistor voltage divider circuit in real time, and when output ripple exceeded predetermined maximum, resistor voltage divider circuit was sent to microcontroller with the filter capacitor abnormal signal.
The power switch pipe that the utility model also is included in switch transformer occurs when unusual; Switching tube fallback circuit as the backup circuit breaker pipe of switch transformer; The also real-time monitoring flow of said microcontroller is through the electric current of the power switch pipe of switch transformer; When the normal and electric current of the power switch pipe of flowing through of load exceeded predetermined maximum, microcontroller switched to the switching tube fallback circuit with power switch pipe.
Said microcontroller is monitored the power switch pipe of switch transformer through current transformer in real time; When the normal and electric current of the power switch pipe of flowing through of load exceeded predetermined maximum, current transformer was sent to microcontroller with the abnormal signal of power switch pipe.
The beneficial effect of the utility model: to the long-life needs of led light source; Components and parts that the utility model decreases in the Switching Power Supply of LED light fixture easily and life-span, short components and parts backed up; When occurring unusual or damaging; Launch backup element immediately, Switching Power Supply is provided on the led light source reliably.
Description of drawings
Fig. 1 is the schematic diagram of the function of the utility model redundance extra long life Switching Power Supply.
Embodiment
Below in conjunction with accompanying drawing the utility model is further set forth.
As shown in Figure 1; The redundance extra long life Switching Power Supply of the utility model comprises rectification circuit 1, switch transformer 2, current rectifying and wave filtering circuit 3, electric capacity fallback circuit 4, microcontroller 5 and resistor voltage divider circuit 6; Rectification circuit 1 is used for converting the alternating current of outside civil power to direct current; Switch transformer 2 is used for converting the direct current that rectification is come out to load (led light source) required voltage; Current rectifying and wave filtering circuit 3 is used for the galvanic ripple of filtering switch transformer output; Electric capacity fallback circuit 4 is used for filter capacitor at current rectifying and wave filtering circuit 3 and (for example cause the capacity of electrochemical capacitor to reduce because of electrolyte very thirsty or lost efficacy) occur when unusual, and as the backup filter capacitor of current rectifying and wave filtering circuit 3, microcontroller 5 is monitored the output ripples of current rectifying and wave filtering circuits 3 in real time through resistor voltage divider circuit 6; And when output ripple exceeds predetermined maximum (filter capacitor of current rectifying and wave filtering circuit 3 occurs unusual), the filter capacitor of current rectifying and wave filtering circuit 3 is switched to electric capacity fallback circuit 4.Like this; When the output ripple of monitoring exceeds predetermined maximum; Resistor voltage divider circuit 6 is sent to microcontroller 5 with the filter capacitor abnormal signal; Microcontroller 5 switches to electric capacity fallback circuit 4 through switches such as relays with the former filter capacitor of current rectifying and wave filtering circuit 3, and electric capacity fallback circuit 4 is as the backup filter capacitor of current rectifying and wave filtering circuit 3.
Further; The utility model also comprises switching tube fallback circuit 7 summation current transformers 8; Switching tube fallback circuit 7 occurs when unusual at the power switch pipe of switch transformer 2; As the backup circuit breaker pipe of switch transformer 2, microcontroller 5 is also monitored through the power switch pipe of 8 pairs of switch transformers 2 of current transformer simultaneously in real time.The electric current of the power switch pipe of flowing through exceeds predetermined maximum when (power switch pipe occurs unusual) in that load is normal; Current transformer 8 is sent to microcontroller 5 with the abnormal signal of power switch pipe; Controller 5 switches to switching tube fallback circuit 7 through switchgears such as relays with the former power switch pipe of switch transformer 2, and switching tube fallback circuit 7 is as the backup circuit breaker pipe of switch transformer 2.
The above is merely preferred embodiments of the present invention; The present invention is not limited to above-mentioned execution mode; In implementation process, possibly there is local small structural modification; If various changes of the present invention or modification are not broken away from the spirit and scope of the present invention, and belong within claim of the present invention and the equivalent technologies scope, then the present invention also is intended to comprise these changes and modification.
Claims (4)
1. redundance extra long life Switching Power Supply, it comprises:
Be used for converting alternating current to galvanic rectification circuit;
Be used for the direct current that rectification is come out is converted to the switch transformer of the required voltage of load;
The current rectifying and wave filtering circuit that is used for the galvanic ripple of filtering switch transformer output,
It is characterized in that; The filter capacitor that also is included in current rectifying and wave filtering circuit occurs when unusual; Electric capacity fallback circuit as the backup filter capacitor of current rectifying and wave filtering circuit; And the output ripple of monitoring current rectifying and wave filtering circuit in real time, and when output ripple exceeds predetermined maximum, filter capacitor switched to the microcontroller of electric capacity fallback circuit.
2. redundance extra long life Switching Power Supply according to claim 1; It is characterized in that; Said microcontroller is monitored the output ripple of current rectifying and wave filtering circuit through resistor voltage divider circuit in real time; When output ripple exceeded predetermined maximum, resistor voltage divider circuit was sent to microcontroller with the filter capacitor abnormal signal.
3. redundance extra long life Switching Power Supply according to claim 1; It is characterized in that; The power switch pipe that also is included in switch transformer occurs when unusual, as the switching tube fallback circuit of the backup circuit breaker pipe of switch transformer, said microcontroller also in real time monitoring flow through the electric current of the power switch pipe of switch transformer; When the normal and electric current of the power switch pipe of flowing through of load exceeded predetermined maximum, microcontroller switched to the switching tube fallback circuit with power switch pipe.
4. redundance extra long life Switching Power Supply according to claim 3; It is characterized in that; Said microcontroller is monitored the power switch pipe of switch transformer through current transformer in real time; When the normal and electric current of the power switch pipe of flowing through of load exceeded predetermined maximum, current transformer was sent to microcontroller with the abnormal signal of power switch pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220269225 CN202634277U (en) | 2012-06-07 | 2012-06-07 | Redundance ultra-long life switch power supply |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220269225 CN202634277U (en) | 2012-06-07 | 2012-06-07 | Redundance ultra-long life switch power supply |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202634277U true CN202634277U (en) | 2012-12-26 |
Family
ID=47387419
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220269225 Expired - Lifetime CN202634277U (en) | 2012-06-07 | 2012-06-07 | Redundance ultra-long life switch power supply |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202634277U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103796402A (en) * | 2013-11-07 | 2014-05-14 | 福建睿能科技股份有限公司 | Over-voltage and under-voltage protection circuit, electronic ballast and over-voltage and under-voltage detection method thereof |
| CN108365745A (en) * | 2018-04-26 | 2018-08-03 | 广东美的厨房电器制造有限公司 | Switching Power Supply and cooking equipment |
-
2012
- 2012-06-07 CN CN 201220269225 patent/CN202634277U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103796402A (en) * | 2013-11-07 | 2014-05-14 | 福建睿能科技股份有限公司 | Over-voltage and under-voltage protection circuit, electronic ballast and over-voltage and under-voltage detection method thereof |
| CN103796402B (en) * | 2013-11-07 | 2016-02-03 | 福建睿能科技股份有限公司 | Over-and under-voltage protective circuit, electric ballast and over-and under-voltage detection method thereof |
| CN108365745A (en) * | 2018-04-26 | 2018-08-03 | 广东美的厨房电器制造有限公司 | Switching Power Supply and cooking equipment |
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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: 20121226 |
|
| CX01 | Expiry of patent term |