CN102904232A - Circuit compensating controller - Google Patents
Circuit compensating controller Download PDFInfo
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- CN102904232A CN102904232A CN2012104589694A CN201210458969A CN102904232A CN 102904232 A CN102904232 A CN 102904232A CN 2012104589694 A CN2012104589694 A CN 2012104589694A CN 201210458969 A CN201210458969 A CN 201210458969A CN 102904232 A CN102904232 A CN 102904232A
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- circuit
- high level
- current sample
- sample load
- resistance
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Abstract
The invention provides a circuit compensating controller. The circuit compensating controller comprises a compensation circuit, a resistor, a current sampling load and a high level diode, wherein one end of the resistor is connected with a high voltage end of an input voltage; the other end of the resistor is connected in series with one end of the current sampling load, and the other end of the current sampling load is connected with a low-voltage end of the input voltage; and a cathode of the high level diode is connected with the compensation circuit, and an anode of the high level diode is connected between the resistor and the current sampling load. The circuit compensating controller provided by the invention can protect the compensation circuit from being burned.
Description
Technical field
The present invention relates to a kind of circuit compensation controller that can avoid compensating circuit to be burned.
Background technology
A kind of existing circuit compensation controller comprises a current sample load, and when the electric current in the circuit need to compensate, the resistance value of current sample load was less, and offset current can flow through compensating circuit within very short time; When circuit did not need to compensate, the resistance value of current sample load was larger, and the offset current that flows through compensating circuit is just very little.Wherein, when circuit need to compensate, because high electric current at transient flow overcompensation circuit, burns out compensating circuit easily.
Summary of the invention
The technical problem that the present invention mainly solves is that the compensating circuit of available circuit compensating controller is burned easily.
In order to solve the problems of the technologies described above, the embodiment of the invention discloses a kind of circuit compensation controller, described circuit compensation controller comprises compensating circuit, resistance, current sample load and high level diode, one end of described resistance is connected with the high-pressure side of input voltage, the other end of described resistance is connected with an end of described current sample load, the other end of described current sample load is connected with the low-pressure end of input voltage, the negative electrode of described high level diode is connected with described compensating circuit, and the anodic bonding of described high level diode is between described resistance and described current sample load.
In a preferred embodiment of the present invention, described current sample load is swept resistance.
In a preferred embodiment of the present invention, the high-pressure side of described input voltage and the voltage difference of low-pressure end are 15V.
In a preferred embodiment of the present invention, the make-and-break voltage of described high level diode is lower than the minimum voltage that described compensating circuit is burned.
Compared to prior art, circuit compensation controller of the present invention can protect compensating circuit not to be burned.
Description of drawings
In order to be illustrated more clearly in the technical scheme in the embodiment of the invention, the accompanying drawing of required use was done to introduce simply during the below will describe embodiment, apparently, accompanying drawing in the following describes only is some embodiments of the present invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain according to these accompanying drawings other accompanying drawing, wherein:
Fig. 1 is the electrical block diagram of circuit compensation controller one preferred embodiment of the present invention.
Embodiment
The below will be clearly and completely described the technical scheme in the embodiment of the invention, and obviously, described embodiment only is a part of embodiment of the present invention, rather than whole embodiment.Based on the embodiment among the present invention, those of ordinary skills belong to the scope of protection of the invention not making all other embodiment that obtain under the creative work prerequisite.
The embodiment of the invention discloses a kind of circuit compensation controller, see also Fig. 1, described circuit compensation controller 1 comprises compensating circuit 10, current sample load R1, resistance R 2 and high level diode D1, one end of described resistance R 2 is connected with the high-pressure side 13 of input voltage V1, the other end of described resistance R 2 is connected with the end of described current sample load R1, the other end of described current sample load R1 is connected with the low-pressure end 14 of input voltage V1, the negative electrode 11 of described high level diode D1 is connected with described compensating circuit 10, and the anode 12 of described high level diode D1 is connected between described resistance R 2 and the described current sample load R1.
Wherein, described current sample load R1 is variable resistor R2, and for example described current sample load R1 is swept resistance or variable resistance box, and the high-pressure side 13 of described input voltage V1 and the voltage difference of low-pressure end 14 are preferably 15V.
Further; the make-and-break voltage V2 of described high level diode D1 is lower than the minimum voltage that described compensating circuit 10 is burned; when the voltage at high level diode D1 two ends is higher than its make-and-break voltage V2; described high level diode D1 is with breakdown; therefore high electric current can not flow to described compensating circuit 10 again, thereby has protected described compensating circuit 10.
In circuit compensation controller 1 of the present invention, increased high level diode D1 between compensating circuit 10 and the current sample load R1, the voltage at described high level diode D1 two ends is designated as low level when being lower than its make-and-break voltage V2, very I is to ignore for its resistance, and this moment, described high level diode D1 was channel status.Be designated as high level when the voltage at described high level diode D1 two ends is higher than its make-and-break voltage V2, this moment, described high level diode D1 was off state, because make-and-break voltage V2 is lower than the minimum level that described compensating circuit 10 is burned, therefore.If resistance R 2 values of current sample load R1 are very little, can not pass through high level diode D1 just can burn out the high level of compensating circuit 10, thereby protect compensating circuit 10; On the other hand, if when needing the little electric current of compensate for slower, be applied to level on the high level diode D1 less than make-and-break voltage V2, high level diode D1 path, compensating circuit 10 can continue compensation.
In sum, circuit compensation controller of the present invention can protect compensating circuit not to be burned.
The above only is embodiments of the invention; be not so limit claim of the present invention; every equivalent structure or equivalent flow process conversion that utilizes description of the present invention to do; or directly or indirectly be used in other relevant technical field, all in like manner be included in the scope of patent protection of the present invention.
Claims (4)
1. circuit compensation controller, it is characterized in that, described circuit compensation controller comprises compensating circuit, resistance, current sample load and high level diode, one end of described resistance is connected with the high-pressure side of input voltage, the other end of described resistance is connected with an end of described current sample load, the other end of described current sample load is connected with the low-pressure end of input voltage, the negative electrode of described high level diode is connected with described compensating circuit, and the anodic bonding of described high level diode is between described resistance and described current sample load.
2. circuit compensation controller according to claim 1 is characterized in that, described current sample load is swept resistance.
3. circuit compensation controller according to claim 1 is characterized in that, the high-pressure side of described input voltage and the voltage difference of low-pressure end are 15V.
4. circuit compensation controller according to claim 1 is characterized in that, the make-and-break voltage of described high level diode is lower than the minimum voltage that described compensating circuit is burned.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210458969.4A CN102904232B (en) | 2012-11-14 | 2012-11-14 | Circuit compensation controller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210458969.4A CN102904232B (en) | 2012-11-14 | 2012-11-14 | Circuit compensation controller |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102904232A true CN102904232A (en) | 2013-01-30 |
| CN102904232B CN102904232B (en) | 2015-11-18 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210458969.4A Active CN102904232B (en) | 2012-11-14 | 2012-11-14 | Circuit compensation controller |
Country Status (1)
| Country | Link |
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| CN (1) | CN102904232B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102123536A (en) * | 2010-01-12 | 2011-07-13 | 冠捷投资有限公司 | Light-emitting diode driving circuit |
| US20110227497A1 (en) * | 2010-03-16 | 2011-09-22 | Jin Hu | Power systems for driving light emitting diodes and associated methods of control |
| CN202050227U (en) * | 2011-04-11 | 2011-11-23 | 东莞启益电器机械有限公司 | Multifunctional linear voltage regulator circuit |
| CN202888819U (en) * | 2012-11-14 | 2013-04-17 | 梅州市志浩电子科技有限公司 | Circuit compensation controller |
-
2012
- 2012-11-14 CN CN201210458969.4A patent/CN102904232B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102123536A (en) * | 2010-01-12 | 2011-07-13 | 冠捷投资有限公司 | Light-emitting diode driving circuit |
| US20110227497A1 (en) * | 2010-03-16 | 2011-09-22 | Jin Hu | Power systems for driving light emitting diodes and associated methods of control |
| CN202050227U (en) * | 2011-04-11 | 2011-11-23 | 东莞启益电器机械有限公司 | Multifunctional linear voltage regulator circuit |
| CN202888819U (en) * | 2012-11-14 | 2013-04-17 | 梅州市志浩电子科技有限公司 | Circuit compensation controller |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102904232B (en) | 2015-11-18 |
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