CN204539563U - A kind of medical inspection circuit for lamp - Google Patents
A kind of medical inspection circuit for lamp Download PDFInfo
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- CN204539563U CN204539563U CN201520184191.1U CN201520184191U CN204539563U CN 204539563 U CN204539563 U CN 204539563U CN 201520184191 U CN201520184191 U CN 201520184191U CN 204539563 U CN204539563 U CN 204539563U
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- 238000002558 medical inspection Methods 0.000 title claims abstract description 10
- 238000004804 winding Methods 0.000 claims description 10
- 230000005669 field effect Effects 0.000 claims description 2
- 238000001914 filtration Methods 0.000 description 2
- 239000003990 capacitor Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
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- Circuit Arrangement For Electric Light Sources In General (AREA)
Abstract
The utility model discloses a kind of medical inspection circuit for lamp, comprising: input high-voltage rectifying unit, its connecting valve control unit, described switch control unit connects driver element and voltage feedback unit.The utility model has the advantages that: circuit design is excellent, comprise input high-voltage rectifying unit, connecting valve control unit, described switch control unit connects driver element and voltage feedback unit, effectively can save the power consumption of medical examining lamp, thus by circuit realiration to hot spot brightness and size adjustable, safety and stability, long service life.
Description
Technical field
The utility model relates to a kind of medical inspection circuit for lamp.
Background technology
The shortcoming of medical examining lamp of the prior art is: power consumption is comparatively large, hot spot brightness and size non-adjustable, conventional brightness can not be remembered, to such an extent as to quality is unstable short with useful life.
Utility model content
In view of this, main purpose of the present utility model is to provide a kind of medical inspection circuit for lamp, and it can reduce power consumption, and hot spot brightness is adjustable, and spot size is adjustable, and can remember conventional brightness, function meets user's user demand more.
For achieving the above object, the technical solution of the utility model is achieved in that a kind of medical inspection circuit for lamp, it is characterized in that, comprising: input high-voltage rectifying unit, its connecting valve control unit, described switch control unit connects driver element and voltage feedback unit.
The utility model has following substantive distinguishing features and progress relative to prior art:
Circuit design is excellent, comprise input high-voltage rectifying unit, connecting valve control unit, described switch control unit connects driver element and voltage feedback unit, effectively can save the power consumption of medical examining lamp, thus by circuit realiration to hot spot brightness and size adjustable, there is the advantage of safety and stability.
Accompanying drawing explanation
Fig. 1 is the electrical schematic diagram of medical inspection circuit for lamp of the present utility model.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail, and to make those skilled in the art can understand the utility model being implemented better, but illustrated embodiment is not as to restriction of the present utility model.
Please refer to Fig. 1, medical inspection circuit for lamp of the present utility model comprises: a kind of medical inspection circuit for lamp, is characterized in that, comprising: input high-voltage rectifying unit, its connecting valve control unit, described switch control unit connects driver element and voltage feedback unit.
Preferably, described input high-voltage rectifying unit comprises: relay J 1, and it connects fuse F1, and F1 connects thermistor RT1, and RT1 connects the rectification circuit of diode D1, D3, D4 and D6 composition, and described rectification circuit connects a filter circuit.
Preferably, described filter circuit comprises resistance R1 and R2 be connected in parallel, and described R1 and R2 and electric capacity C1 is connected in parallel.
Preferably, described switch control unit comprises transformer T1, and its armature winding connects electric capacity C1 and diode D5, auxiliary winding switching diode D8, electric capacity C26 and resistance R40, also connect R5 and electric capacity C10 and C11,7 of secondary winding is connected diode D7 with 8 pin, D7 and electric capacity C27, resistance R41 is connected in parallel, and 10 pin of secondary winding connect diode D2, D10, the control circuit that electric capacity C22, resistance R23 are formed.
Preferably, described control circuit also connects inductance L 1, L1 and is connected with C3, C25.
Preferably, described driver element comprises a constant-flow driver U4, the collector electrode of its connecting triode Q6, the base stage contact resistance R42 of Q6.
Preferably, the model of described U4 adopts QX7136.
Preferably, the 1 pin contact resistance R13 of U4 and electric capacity C7, R13 are connected with resistance R14, R15 again.
Preferably, described voltage feedback unit comprises: PWM controller U1, and its 2 pin connects electric capacity C8 and resistance R21,3 pin contact resistance R17,4 pin contact resistance R16, R16 and R18, R19 connect, 6 pin contact resistance R11, R11 is connected with field-effect transistor Q2 again.
Operation principle of the present utility model is: CN2 is alternating current input interface, and F1 is fuse, and RT1 is surge absoption thermistor, C1FL1 is EMC filter circuit, and R1, R2 are discharge resistances, be used for the residual voltage bled off on C1, D1, D3, D4, D6 are rectifier bridge C4 is filter capacitor.After current rectifying and wave filtering circuit, C1 obtains the 300V high pressure of direct current, it directly receives 1 pin of transformer T1 armature winding, from 5 pin out through switching tube Q2 again to resistance R17, R18, R19 to ground, R17, R18, R19 are current sampling resistors.Transformer 2,3 pin are accessory power supply windings, and the voltage sensed is through D8 rectification, and to C11 filtering after R5, R40 current limliting, then deliver to PWM controller U1, provide voltage to IC, R18, R19 are starting resistances, and R17 is operating frequency adjusting resistance.
The above embodiment is only for absolutely proving the preferred embodiment that the utility model is lifted, and protection range of the present utility model is not limited thereto.The equivalent alternative or conversion that those skilled in the art do on the utility model basis, all within protection range of the present utility model.Protection range of the present utility model is as the criterion with claims.
Claims (1)
1. a medical inspection circuit for lamp, is characterized in that, comprising: input high-voltage rectifying unit, its connecting valve control unit, and described switch control unit connects driver element and voltage feedback unit;
Described input high-voltage rectifying unit comprises: relay J 1, and it connects fuse F1, and F1 connects thermistor RT1, and RT1 connects the rectification circuit of diode D1, D3, D4 and D6 composition, and described rectification circuit connects a filter circuit;
Described filter circuit comprises resistance R1 and R2 be connected in parallel, and described R1 and R2 and electric capacity C1 is connected in parallel;
Described switch control unit comprises transformer T1, its armature winding connects electric capacity C1 and diode D5, auxiliary winding switching diode D8, electric capacity C26 and resistance R40, also connect R5 and electric capacity C10 and C11,7 of secondary winding is connected diode D7 with 8 pin, D7 and electric capacity C27, and resistance R41 is connected in parallel, 10 pin of secondary winding connect diode D2, the control circuit that D10, electric capacity C22, resistance R23 are formed;
Described control circuit also connects inductance L 1, L1 and is connected with C3, C25;
Described driver element comprises a constant-flow driver U4, the collector electrode of its connecting triode Q6, the base stage contact resistance R42 of Q6;
The model of described U4 adopts QX7136;
The 1 pin contact resistance R13 of U4 and electric capacity C7, R13 are connected with resistance R14, R15 again;
Described voltage feedback unit comprises: PWM controller U1, and its 2 pin connects electric capacity C8 and resistance R21,3 pin contact resistance R17,4 pin contact resistance R16, and R16 and R18, R19 connect, and 6 pin contact resistance R11, R11 is connected with field-effect transistor Q2 again.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520184191.1U CN204539563U (en) | 2015-03-31 | 2015-03-31 | A kind of medical inspection circuit for lamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520184191.1U CN204539563U (en) | 2015-03-31 | 2015-03-31 | A kind of medical inspection circuit for lamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204539563U true CN204539563U (en) | 2015-08-05 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520184191.1U Active CN204539563U (en) | 2015-03-31 | 2015-03-31 | A kind of medical inspection circuit for lamp |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204539563U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104853480A (en) * | 2015-03-31 | 2015-08-19 | 付志民 | Medical examining lamp circuit |
-
2015
- 2015-03-31 CN CN201520184191.1U patent/CN204539563U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104853480A (en) * | 2015-03-31 | 2015-08-19 | 付志民 | Medical examining lamp circuit |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP02 | Change in the address of a patent holder |
Address after: 100070 Beijing city Fengtai District Guogongzhuang Street No. 21, No. 2 Vanke Blue 2 unit 1302 room Patentee after: Fu Zhimin Address before: 100161 3-2-201 room, South Hospital, No. 52 West Fourth Ring Road, Beijing, Fengtai District Patentee before: Fu Zhimin |
|
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Yadi Wright medical technology (Beijing) Co., Ltd. Assignor: Fu Zhimin Contract record no.: 2016990000143 Denomination of utility model: Medical examining lamp circuit Granted publication date: 20150805 License type: Exclusive License Record date: 20160415 |
|
| LICC | Enforcement, change and cancellation of record of contracts on the licence for exploitation of a patent or utility model | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20170914 Address after: 100070 Beijing city Fengtai District Guogongzhuang Street No. 21, No. 2 Vanke Blue 2 unit 1302 room Patentee after: Yadi Wright medical technology (Beijing) Co., Ltd. Address before: 100070 Beijing city Fengtai District Guogongzhuang Street No. 21, No. 2 Vanke Blue 2 unit 1302 room Patentee before: Fu Zhimin |