CN203984247U - A kind of Novel DC multilevel decompression voltage stabilizing circuit - Google Patents
A kind of Novel DC multilevel decompression voltage stabilizing circuit Download PDFInfo
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- CN203984247U CN203984247U CN201420400776.8U CN201420400776U CN203984247U CN 203984247 U CN203984247 U CN 203984247U CN 201420400776 U CN201420400776 U CN 201420400776U CN 203984247 U CN203984247 U CN 203984247U
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Abstract
The utility model discloses a kind of Novel DC multilevel decompression voltage stabilizing circuit, comprise DC decompression voltage stabilizing circuit and linear voltage regulator U1 voltage stabilizing circuit; DC decompression voltage stabilizing circuit is as elementary decompression voltage regulator, and the collector electrode of its triode Q2 is connected with external power supply VCC; The emitter of described triode Q2 is connected with the VIN end of pressurizer U1; Linear voltage regulator U1 voltage stabilizing circuit is as secondary decompression transformation unit, and the VOUT1 of its pressurizer U1 end connects the anode of diode D1, and the negative electrode of diode D1 connects the low-voltage output V0 of direct current regulation circuit; The utility model neutral line voltage-stabilizing device coordinates diode to set up direct current regulation circuit, contribute to the lifting of electronic product overall performance, each element of the utility model all adopts general electronic devices and components, adopt triode and pressurizer etc. to connect and compose, make whole circuit structure simple, with low cost, can realize equally the function of step-down and voltage stabilizing, the production cost of electronic equipment is effectively controlled.
Description
Technical field
The utility model relates to a kind of voltage stabilizing circuit, specifically a kind of Novel DC multilevel decompression voltage stabilizing circuit.
Background technology
Along with making rapid progress of electronic product, various electronic products are also more and more higher to the requirement of DC power supply, low input dc power presses to main flow, therefore, direct voltage step-down conversion is essential, DC decompression voltage stabilizing scheme is very many, and main flow is LDO (low pressure difference linear voltage regulator) and these two kinds of lowering and stabilizing blood pressure schemes of DC/DC (DC-to-DC converter) at present.But most LDO and DC/DC step-down scenario-frame are very complicated.The internal circuit of existing LDO can cause unnecessary waste, and can cause very high cost, makes the production cost of electronic product be difficult to be effectively controlled.And national energy-saving reduces discharging the propelling of policy, country is also more and more stricter to the requirement of electronic equipment stand-by power consumption.Therefore, in current process chip, all increased the true idle function of low-power consumption, be process chip except using normal core operational voltage when the normal work, when its standby, also need to use the standby power of little current low voltage, so that the waking up of process chip.Nowadays the kernel standby voltage of 1.0V has slowly become the main flow voltage of various process chip.At present, want to obtain the direct current standby voltage of 1.0V, the design of its power circuit need to adopt special-purpose linear voltage stabilization device or switching power source device to realize conventionally.When adopting special-purpose linear voltage-stabilizing device to carry out designing power supply circuit, due to the model that can export at present the linear voltage stabilization device that is low to moderate 1.0V direct voltage seldom, therefore cost is relatively high, adopt this power circuit for process chip provides kernel standby voltage, can cause the rising of products-hardware cost.If employing switching power source device produces the kernel standby voltage of the required 1.0V of process chip, although switching power source device can be accomplished the low pressure output of 1.0V,, output pulse and switch noise are larger, thereby easily cause the unstable of process chip work.And the cost of switching power source device is also relatively high, be applied to, in current household appliances, can reduce the market competitiveness of product.Based on above reason, how to research and develop that a kind of can to provide stable low pressure kernel standby voltage and low, the noiseless direct current regulation circuit of hardware cost to process chip be a subject matter to be solved in the utility model.
Utility model content
The purpose of this utility model is to provide a kind of Novel DC multilevel decompression voltage stabilizing circuit, to solve the problem proposing in above-mentioned background technology.
For achieving the above object, the utility model provides following technical scheme:
A Novel DC multilevel decompression voltage stabilizing circuit, comprises DC decompression voltage stabilizing circuit and linear voltage regulator U1 voltage stabilizing circuit; DC decompression voltage stabilizing circuit is as elementary decompression voltage regulator, and DC decompression voltage stabilizing circuit comprises triode Q1, triode Q2, capacitor C 5, capacitor C 6, capacitor C 7, resistance R 3, resistance R 4, resistance R 5 and diode D2; The collector electrode of described triode Q2 is connected with external power supply VCC, and the collector electrode of triode Q2 is by capacitor C 1 ground connection; The emitter of described triode Q2 is connected with the VIN end of pressurizer U1; Described triode Q2 base stage connects the collector electrode of one end of capacitor C 5, the negative pole of diode D2 and triode Q1 simultaneously, and the positive pole of the emitter of triode Q1, diode D2 is connected with the other end of capacitor C 5, and ground connection; One end of the collector electrode contact resistance R5 of described triode Q1, the collector electrode of the other end connecting triode Q2 of resistance R 5; The base stage while contact resistance R3 of described triode Q1 and one end of resistance R 4, the other end of resistance R 3 connects low potential port, and the other end of resistance R 4 is connected with the emitter of triode Q1, and ground connection; Between the VIN end of described triode Q2 emitter and pressurizer U1, connect capacitor C in parallel 6 and electrochemical capacitor C7, and triode Q2 emitter connects the positive pole of electrochemical capacitor C7, capacitor C 6 and capacitor C 7 ground connection; Linear voltage regulator U1 voltage stabilizing circuit, as secondary decompression transformation unit, comprises pressurizer U1, diode D1, resistance R 1, resistance R 2, capacitor C 1, capacitor C 2, capacitor C 3 and capacitor C 4; The VOUT1 end of described pressurizer U1 connects the anode of diode D1, and the negative electrode of diode D1 connects the low-voltage output V0 of direct current regulation circuit, and the negative pole of diode D1 is connected one end of capacitor C 4, the other end ground connection of capacitor C 4 with the wiring point of low-voltage output V0; One end of the ADJ end while contact resistance R1 of described pressurizer U1 and one end of resistance R 2, the other end ground connection of resistance R 2, the other end of resistance R 1 connects the VOUT1 end of pressurizer U1, and VOUT1 end is connected the VOUT2 end of pressurizer U1 with the contact of resistance R 1; Between described VOUT1 end and the positive pole of diode D2, be connected with capacitor C in parallel 3 and capacitor C 2, and capacitor C 3 and capacitor C 2 ground connection.
Compared with prior art, the beneficial effects of the utility model are: the utility model adopts linear voltage stabilization device cheaply to coordinate diode to set up direct current regulation circuit, generate the little electric current kernel of the required 1.0V of current process chip standby voltage, hardware cost is low, not only can meet well the standby requirement of process chip, the stand-by power consumption of reduction system, and contribute to the lifting of electronic product overall performance, the utility model embodiment adopts triode as voltage drop element, and coordinate pressurizer, make the voltage of triode output keep stable, when load power consumption changes, the electric current changing can be synchronized to the base stage of triode and the electric current on pressurizer, because triode is operated in amplification region, therefore the current change quantity that load power consumption variation produces is after triode regulates, can make the voltage of output keep constant, realize step-down and voltage regulation result, and each element all adopts general electronic devices and components, production cost is low, adopt triode and pressurizer etc. to connect and compose, make whole circuit structure simple, with low cost, can realize the function of step-down and voltage stabilizing equally, the production cost of electronic equipment is effectively controlled.
Accompanying drawing explanation
Fig. 1 is the structural representation of Novel DC multilevel decompression voltage stabilizing circuit.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is clearly and completely described, obviously, described embodiment is only the utility model part embodiment, rather than whole embodiment.Embodiment based in the utility model, those of ordinary skills are not making the every other embodiment obtaining under creative work prerequisite, all belong to the scope of the utility model protection.
Refer to Fig. 1, in the utility model embodiment, a kind of Novel DC multilevel decompression voltage stabilizing circuit, comprises DC decompression voltage stabilizing circuit and linear voltage regulator U1 voltage stabilizing circuit; DC decompression voltage stabilizing circuit is as elementary decompression voltage regulator, and DC decompression voltage stabilizing circuit comprises triode Q1, triode Q2, capacitor C 5, capacitor C 6, capacitor C 7, resistance R 3, resistance R 4, resistance R 5 and diode D2; The collector electrode of described triode Q2 is connected with external power supply VCC, and the collector electrode of triode Q2 is by capacitor C 1 ground connection; The emitter of described triode Q2 is connected with the VIN end of pressurizer U1; Described triode Q2 base stage connects the collector electrode of one end of capacitor C 5, the negative pole of diode D2 and triode Q1 simultaneously, and the positive pole of the emitter of triode Q1, diode D2 is connected with the other end of capacitor C 5, and ground connection; One end of the collector electrode contact resistance R5 of described triode Q1, the collector electrode of the other end connecting triode Q2 of resistance R 5; The base stage while contact resistance R3 of described triode Q1 and one end of resistance R 4, the other end of resistance R 3 connects low potential port, and the other end of resistance R 4 is connected with the emitter of triode Q1, and ground connection; Between the VIN end of described triode Q2 emitter and pressurizer U1, connect capacitor C in parallel 6 and electrochemical capacitor C7 (triode Q2 emitter is connected the positive pole of electrochemical capacitor C7), and capacitor C 6 and capacitor C 7 ground connection; Linear voltage regulator U1 voltage stabilizing circuit, as secondary decompression transformation unit, comprises pressurizer U1, diode D1, resistance R 1, resistance R 2, capacitor C 1, capacitor C 2, capacitor C 3 and capacitor C 4; The VOUT1 end of described pressurizer U1 connects the anode of diode D1, control diode D1 conducting, the negative electrode of diode D1 connects the low-voltage output V0 of direct current regulation circuit, utilize the conduction voltage drop of diode D1 to do further step-down processing to the DC power supply of pressurizer U1 output, thereby generate the required low-voltage dc power supply of late-class circuit, and the negative pole of diode D1 is connected one end of capacitor C 4, the other end ground connection of capacitor C 4 with the wiring point of low-voltage output V0; One end of the ADJ end while contact resistance R1 of described pressurizer U1 and one end of resistance R 2, the other end ground connection of resistance R 2, the other end of resistance R 1 connects the VOUT1 end of pressurizer U1, and VOUT1 end is connected the VOUT2 end of pressurizer U1 with the contact of resistance R 1; Between described VOUT1 end and the positive pole of diode D2, be connected with capacitor C in parallel 3 and capacitor C 2, and capacitor C 3 and capacitor C 2 ground connection.
The utility model embodiment adopts triode as voltage drop element, and coordinate pressurizer, make the voltage of triode output keep stable, when load power consumption changes, the electric current changing can be synchronized to the base stage of triode and the electric current on pressurizer, and because triode is operated in amplification region, so the current change quantity that load power consumption variation produces is after triode regulates, can make the voltage of output keep constant, realize step-down and voltage regulation result.
To those skilled in the art, obviously the utility model is not limited to the details of above-mentioned one exemplary embodiment, and in the situation that not deviating from spirit of the present utility model or essential characteristic, can realize the utility model with other concrete form.Therefore, no matter from which point, all should regard embodiment as exemplary, and be nonrestrictive, scope of the present utility model is limited by claims rather than above-mentioned explanation, is therefore intended to include in the utility model dropping on the implication that is equal to important document of claim and all changes in scope.Any Reference numeral in claim should be considered as limiting related claim.
In addition, be to be understood that, although this specification is described according to execution mode, but not each execution mode only comprises an independently technical scheme, this narrating mode of specification is only for clarity sake, those skilled in the art should make specification as a whole, and the technical scheme in each embodiment also can, through appropriately combined, form other execution modes that it will be appreciated by those skilled in the art that.
Claims (1)
1. a Novel DC multilevel decompression voltage stabilizing circuit, comprises DC decompression voltage stabilizing circuit and linear voltage regulator U1 voltage stabilizing circuit; It is characterized in that: DC decompression voltage stabilizing circuit is as elementary decompression voltage regulator, and DC decompression voltage stabilizing circuit comprises triode Q1, triode Q2, capacitor C 5, capacitor C 6, capacitor C 7, resistance R 3, resistance R 4, resistance R 5 and diode D2; The collector electrode of described triode Q2 is connected with external power supply VCC, and the collector electrode of triode Q2 is by capacitor C 1 ground connection; The emitter of described triode Q2 is connected with the VIN end of pressurizer U1; Described triode Q2 base stage connects the collector electrode of one end of capacitor C 5, the negative pole of diode D2 and triode Q1 simultaneously, and the positive pole of the emitter of triode Q1, diode D2 is connected with the other end of capacitor C 5, and ground connection; One end of the collector electrode contact resistance R5 of described triode Q1, the collector electrode of the other end connecting triode Q2 of resistance R 5; The base stage while contact resistance R3 of described triode Q1 and one end of resistance R 4, the other end of resistance R 3 connects low potential port, and the other end of resistance R 4 is connected with the emitter of triode Q1, and ground connection; Between the VIN end of described triode Q2 emitter and pressurizer U1, connect capacitor C in parallel 6 and electrochemical capacitor C7, and triode Q2 emitter connects the positive pole of electrochemical capacitor C7, capacitor C 6 and capacitor C 7 ground connection; Linear voltage regulator U1 voltage stabilizing circuit, as secondary decompression transformation unit, comprises pressurizer U1, diode D1, resistance R 1, resistance R 2, capacitor C 1, capacitor C 2, capacitor C 3 and capacitor C 4; The VOUT1 end of described pressurizer U1 connects the anode of diode D1, and the negative electrode of diode D1 connects the low-voltage output V0 of direct current regulation circuit, and the negative pole of diode D1 is connected one end of capacitor C 4, the other end ground connection of capacitor C 4 with the wiring point of low-voltage output V0; One end of the ADJ end while contact resistance R1 of described pressurizer U1 and one end of resistance R 2, the other end ground connection of resistance R 2, the other end of resistance R 1 connects the VOUT1 end of pressurizer U1, and VOUT1 end is connected the VOUT2 end of pressurizer U1 with the contact of resistance R 1; Between described VOUT1 end and the positive pole of diode D2, be connected with capacitor C in parallel 3 and capacitor C 2, and capacitor C 3 and capacitor C 2 ground connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420400776.8U CN203984247U (en) | 2014-07-20 | 2014-07-20 | A kind of Novel DC multilevel decompression voltage stabilizing circuit |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420400776.8U CN203984247U (en) | 2014-07-20 | 2014-07-20 | A kind of Novel DC multilevel decompression voltage stabilizing circuit |
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| CN203984247U true CN203984247U (en) | 2014-12-03 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201420400776.8U Withdrawn - After Issue CN203984247U (en) | 2014-07-20 | 2014-07-20 | A kind of Novel DC multilevel decompression voltage stabilizing circuit |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104092376A (en) * | 2014-07-20 | 2014-10-08 | 苏州塔可盛电子科技有限公司 | Novel direct-current multi-level voltage reducing and stabilizing circuit |
| CN106020310A (en) * | 2016-07-14 | 2016-10-12 | 成都市思卡利科技有限公司 | Voltage stabilizing circuit adopting full-wave rectification |
-
2014
- 2014-07-20 CN CN201420400776.8U patent/CN203984247U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104092376A (en) * | 2014-07-20 | 2014-10-08 | 苏州塔可盛电子科技有限公司 | Novel direct-current multi-level voltage reducing and stabilizing circuit |
| CN106020310A (en) * | 2016-07-14 | 2016-10-12 | 成都市思卡利科技有限公司 | Voltage stabilizing circuit adopting full-wave rectification |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20141203 Effective date of abandoning: 20160921 |
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| C25 | Abandonment of patent right or utility model to avoid double patenting |