CN204652218U - A kind of power circuit of intelligent electric cooker - Google Patents
A kind of power circuit of intelligent electric cooker Download PDFInfo
- Publication number
- CN204652218U CN204652218U CN201520385154.7U CN201520385154U CN204652218U CN 204652218 U CN204652218 U CN 204652218U CN 201520385154 U CN201520385154 U CN 201520385154U CN 204652218 U CN204652218 U CN 204652218U
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- CN
- China
- Prior art keywords
- npn type
- type triode
- electric capacity
- electric cooker
- ground
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- 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 - Fee Related
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Abstract
The utility model discloses a kind of power circuit of intelligent electric cooker, it is the collector electrode of the positive pole connection NPN type triode TR105 of the input power of the electric cooker power circuit exported by rectifier bridge, a biasing resistor R150 is connected with between the collector electrode of NPN type triode TR105 and base stage, electrochemical capacitor C119 and electric capacity C102 is connected with between the collector electrode of NPN type triode and ground, electrochemical capacitor C133 and electric capacity C114 is connected with between the emitter of NPN type triode and ground, the base stage of NPN type triode TR105 connects the negative pole of voltage-stabiliser tube Z101 and one end of electric capacity C115 respectively, the other end of electric capacity C115 and the positive pole of diode Z101 are all connected to the ground and connect, the emitter of triode TR105 connects output voltage VCC.The utility model utilizes low-down cost to realize the voltage stabilizing object of electric cooker power supply, effectively ensures the normal work of electric cooker.
Description
Technical field
The utility model relates to household appliance technical field, specifically, is related specifically to a kind of power circuit of intelligent electric cooker.
Background technology
At present, the popular method for designing of right+12V or+5V power unit adopts three terminal regulator 7812,7805 etc. to realize voltage regulation result, and its cost is relatively high, generally also will add radiator, and also will account for larger area when PCB arranges.
Utility model content
The purpose of this utility model is for deficiency of the prior art, to provide a kind of power circuit of intelligent electric cooker, to solve the problem.
The technical problem that the utility model solves can realize by the following technical solutions:
The positive pole of the input power of the electric cooker power circuit exported by rectifier bridge connects the collector electrode of NPN type triode TR105, a biasing resistor R150 is connected with between the collector electrode of NPN type triode TR105 and base stage, electrochemical capacitor C119 and electric capacity C102 is connected with between the collector electrode of NPN type triode and ground, electrochemical capacitor C133 and electric capacity C114 is connected with between the emitter of NPN type triode and ground, the base stage of NPN type triode TR105 connects the negative pole of voltage-stabiliser tube Z101 and one end of electric capacity C115 respectively, the other end of electric capacity C115 and the positive pole of diode Z101 are all connected to the ground and connect, the emitter of triode TR105 connects output voltage VCC.
Compared with prior art, the beneficial effects of the utility model are as follows:
Structure is simple, designs ingenious, reaches voltage stabilizing object mainly through voltage stabilizing didoe Z101 and triode TR105.The method for designing costs such as the employing three terminal regulator 7812,7805 that the utility model is more popular relatively are at present lower, and without the need to adding heat abstractor, when PCB arranges, area occupied is less.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of the power circuit of intelligent electric cooker described in the utility model.
Embodiment
The technological means realized for making the utility model, creation characteristic, reaching object and effect is easy to understand, below in conjunction with embodiment, setting forth the utility model further.
See Fig. 1, the power circuit of a kind of intelligent electric cooker described in the utility model, comprise the NPN type triode TR105 of 8050 types, 5.6V voltage-stabiliser tube Z101,0.1 μ F electric capacity C102,0.1 μ F electric capacity C115 and electric capacity C114,2200 μ F/25V electrochemical capacitor C119,220 μ F/16V electrochemical capacitor C133 and 1.5k Ω resistance R150.
Input voltage through the electric cooker power circuit of rectifier bridge output is 12VDC, and output voltage is 5VDC.The positive pole of input voltage connects the collector electrode of NPN type triode TR105, a biasing resistor R150 is connected with between the collector electrode of NPN type triode TR105 and base stage, electrochemical capacitor C119 and electric capacity C102 is connected with between the collector electrode of NPN type triode and ground, electrochemical capacitor C133 and electric capacity C114 is connected with between the emitter of NPN type triode and ground, the base stage of NPN type triode TR105 connects the negative pole of voltage-stabiliser tube Z101 and one end of electric capacity C115 respectively, the other end of electric capacity C115 and the positive pole of diode Z101 are all connected to the ground and connect, the emitter of triode TR105 connects output voltage VCC.
The principle of the power circuit of described a kind of intelligent electric cooker is: utilize the forward voltage drop of silicone tube PN junction for 0.6V ~ 0.7V, the voltage-stabiliser tube Z101 of a 5.6V is connected in base stage, the voltage of base stage is made to remain on 5.6V, after triode ON, emitter just can obtain the voltage of 5V, and the pressure drop now on triode TR105 is 7V.Under normal circumstances, output voltage VCC is 5.0V ~ 5.1V.
If desired output voltage VCC obtains other magnitude of voltage, only need change voltage stabilizing didoe Z101, if the voltage VCC of rectifier bridge output is higher, as required can at an indirect resistance of C102 and R150, and to reach the object of step-down.
More than show and describe general principle of the present utility model and principal character and advantage of the present utility model.The technical staff of the industry should understand; the utility model is not restricted to the described embodiments; what describe in above-described embodiment and specification just illustrates principle of the present utility model; under the prerequisite not departing from the utility model spirit and scope; the utility model also has various changes and modifications, and these changes and improvements all fall within the scope of claimed the utility model.The claimed scope of the utility model is defined by appending claims and equivalent thereof.
Claims (1)
1. the power circuit of an intelligent electric cooker, it is characterized in that: the positive pole through the input power of the electric cooker power circuit of rectifier bridge output connects the collector electrode of NPN type triode TR105, a biasing resistor R150 is connected with between the collector electrode of NPN type triode TR105 and base stage, electrochemical capacitor C119 and electric capacity C102 is connected with between the collector electrode of NPN type triode and ground, electrochemical capacitor C133 and electric capacity C114 is connected with between the emitter of NPN type triode and ground, the base stage of NPN type triode TR105 connects the negative pole of voltage-stabiliser tube Z101 and one end of electric capacity C115 respectively, the other end of electric capacity C115 and the positive pole of diode Z101 are all connected to the ground and connect, the emitter of triode TR105 connects output voltage VCC.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520385154.7U CN204652218U (en) | 2015-06-04 | 2015-06-04 | A kind of power circuit of intelligent electric cooker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520385154.7U CN204652218U (en) | 2015-06-04 | 2015-06-04 | A kind of power circuit of intelligent electric cooker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204652218U true CN204652218U (en) | 2015-09-16 |
Family
ID=54104926
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520385154.7U Expired - Fee Related CN204652218U (en) | 2015-06-04 | 2015-06-04 | A kind of power circuit of intelligent electric cooker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204652218U (en) |
-
2015
- 2015-06-04 CN CN201520385154.7U patent/CN204652218U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150916 Termination date: 20180604 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |