CN203276081U - Low-power-consumption power source voltage stabilizer - Google Patents
Low-power-consumption power source voltage stabilizer Download PDFInfo
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- CN203276081U CN203276081U CN 201320178055 CN201320178055U CN203276081U CN 203276081 U CN203276081 U CN 203276081U CN 201320178055 CN201320178055 CN 201320178055 CN 201320178055 U CN201320178055 U CN 201320178055U CN 203276081 U CN203276081 U CN 203276081U
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Abstract
The utility model relates to a low-power-consumption power source voltage stabilizer which comprises a low-output-loss power stabilizer. A power amplifier, a multi-phase clock generating circuit, a load copy and a load are connected to the output end of the low-output-loss power stabilizer respectively. A reference voltage is connected with the input end of the power amplifier, the output end of the power amplifier is connected with the load copy, a charge pump is connected between the power amplifier and the load copy in parallel, the charge pump is connected with the multi-phase clock generating circuit, and a resistance-capacitance filter is connected between the connecting end of the load copy and the load in parallel. The low-power-consumption power source voltage stabilizer is low in power consumption and capable of guaranteeing the order of the 40-decibel volume from low frequency to high frequency and guarantees the power supply rejection ratio.
Description
Technical field
The utility model relates to power regulator, particularly, relates to a kind of low-power dissipation power supply voltage stabilizer.
Background technology
Power regulator is a kind of feed circuit or the power-supply unit that can automatically adjust output voltage, its effect is that fluctuation is large and the supply voltage requirement of inadequacy electric equipment is stabilized in its range of set value, and various circuit or electric equipment can be worked under rated operational voltage; Also be adapted to user and the large consumer of load change of the low-voltage network end that supply voltage is too low or too high, fluctuating range is large, be specially adapted to all to the demanding voltage stabilizing electricity consumption of electrical network waveform place.Existing power regulator power dissipation ratio is higher, and can't guarantee supply-voltage rejection ratio from the low frequency to the high frequency.
Summary of the invention
Technical problem to be solved in the utility model is that a kind of low-power dissipation power supply voltage stabilizer that can reduce power consumption is provided.
In order to solve the problems of the technologies described above, the utility model is achieved through the following technical solutions: a kind of low-power dissipation power supply voltage stabilizer, comprise the low output loss power regulator, be connected with respectively power amplifier, multiphase clock generation circuit, load copy and load on the output terminal of described low output loss power regulator; Described power amplifier input end is connected with reference voltage, output terminal is connected with described load copy, between described power amplifier and load copy and be connected to charge pump, described charge pump and multiphase clock produce circuit and are connected, between the link that described load copies and load and be connected to a resistor ﹠ capacitor filter.
Preferably, between described charge pump and load copy and be connected to resistor current type electric pressure converter.
[0006]Compared with prior art, usefulness of the present utility model is: this low-power dissipation power supply voltage stabilizer is low in energy consumption, can guarantee 40 decibels of volumes from the low frequency to the high frequency, guaranteed supply-voltage rejection ratio.
Description of drawings:
Below in conjunction with accompanying drawing, the utility model is further illustrated.
Fig. 1 is the utility model low-power dissipation power supply stabilizator structure block diagram.
In figure: 1, low output loss power regulator; 2, reference voltage; 3, power amplifier; 4, multiphase clock produces circuit; 5, charge pump; 6, resistor current type electric pressure converter; 7, resistor ﹠ capacitor filter; 8, load copy; 9, load.
Embodiment:
Below in conjunction with the drawings and the specific embodiments, the utility model is described in detail:
A kind of low-power dissipation power supply voltage stabilizer shown in Figure 1 comprises low output loss power regulator 1, is connected with respectively power amplifier 3, multiphase clock generation circuit 4, load copy 8 and load 9 on the output terminal of described low output loss power regulator 1; Described power amplifier 3 input ends are connected with reference voltage 2, output terminal is connected with described load copy 8, between described power amplifier 3 and load copy 8 and be connected to charge pump 5, described charge pump 5 produces circuit 4 with multiphase clock and is connected, and between described charge pump 5 and load copy 8 and be connected to resistor current type electric pressure converter 6, between the link of described load copy 8 and load 9 and be connected to a resistor ﹠ capacitor filter 7.
Particularly, described power amplifier 3, charge pump 5, resistor current type electric pressure converter 6 and load copy 8 consist of a main voltage stabilizer, and resistor ﹠ capacitor filter 7 and load 9 consist of one from voltage stabilizer; The load copy 8 of described main voltage stabilizer is the copy of load 9, and is real load from the load 9 of voltage stabilizer.Main voltage stabilizer and one or more levels NMOS stabilivolt is arranged from voltage stabilizer, the grid voltage of the NMOS stabilivolt of main voltage stabilizer is determined by a backfeed loop; These voltages are received from the grid of voltage stabilizer after by low-pass filtering.Described main voltage stabilizer and have one to level Four from the quantity of the NMOS pipe of voltage stabilizer is usually according to area or the performance tradeoff of the best; Grid between level and level can be carried out voltage transitions by resistor current type electric pressure converter 6, and therefore, main voltage stabilizer only needs a circuit feedback.Realize as another one, can utilize the voltage between not at the same level different, utilize the body bias of pipe, can produce different threshold voltages between at the same level, therefore can save resistor current type electric pressure converter 6.A described low output loss power regulator 1 produces a stable voltage V1, and this voltage is compared extraneous power supply, and noise is little a lot; This low output loss power regulator 1 provides power supply for power amplifier 3 and multiphase clock produce circuit 4, and multiphase clock produces the clock that circuit 4 produces the leggy of adjustable frequencies, and it can be a simple leggy ring oscillator.The supply voltage of the more main voltage stabilizer internal burden of power amplifier 3 copy and the difference of reference voltage 2, ideally, will be very approaching from the supply voltage of the supply voltage of voltage stabilizer real load and main voltage stabilizer internal burden copy, what therefore, power amplifier 3 compared is exactly almost supply voltage and the reference voltage of real load.
The output of power amplifier 3 is admitted to charge pump 5, this charge pump 5 will input and output between to increase a fixing forward voltage poor, therefore the output voltage of charge pump 5 will be than the high V1 of input, and this voltage difference is exactly the output voltage V 1 of above-mentioned low output loss power regulator 1.
The door of main voltage stabilizer NMOS is delivered in charge pump 5 outputs, has formed the negative feedback loop of a sealing; Strict in area requirements, but the power noise rejection requires can dispense from voltage stabilizer in relatively not high situation; The dominant pole of this backfeed loop can be exported when output power amplifier 3, and large electric capacity is placed on power amplifier 3 outputs, helps to reduce output ripple.
This low-power dissipation power supply voltage stabilizer is low in energy consumption, can guarantee 40 decibels of volumes from the low frequency to the high frequency, guaranteed supply-voltage rejection ratio.
It is emphasized that: above is only preferred embodiment of the present utility model, be not that the utility model is done any pro forma restriction, every foundation technical spirit of the present utility model all still belongs in the scope of technical solutions of the utility model any simple modification, equivalent variations and modification that above embodiment does.
Claims (2)
1. low-power dissipation power supply voltage stabilizer, it is characterized in that: comprise low output loss power regulator (1), be connected with respectively power amplifier (3), multiphase clock generation circuit (4), load copy (8) and load (9) on the output terminal of described low output loss power regulator (1); Described power amplifier (3) input end is connected with reference voltage (2), output terminal copies (8) with described load and is connected, described power amplifier (3) and load copy between (8) and are connected to charge pump (5), described charge pump (5) and multiphase clock produce circuit (4) and are connected, and described load copies between the link of (8) and load (9) and is connected to a resistor ﹠ capacitor filter (7).
2. low-power dissipation power supply voltage stabilizer according to claim 1 is characterized in that: between described charge pump (5) and load copy (8) and be connected to resistor current type electric pressure converter (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320178055 CN203276081U (en) | 2013-04-11 | 2013-04-11 | Low-power-consumption power source voltage stabilizer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320178055 CN203276081U (en) | 2013-04-11 | 2013-04-11 | Low-power-consumption power source voltage stabilizer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203276081U true CN203276081U (en) | 2013-11-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320178055 Expired - Fee Related CN203276081U (en) | 2013-04-11 | 2013-04-11 | Low-power-consumption power source voltage stabilizer |
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| CN (1) | CN203276081U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111414033A (en) * | 2019-01-06 | 2020-07-14 | 联咏科技股份有限公司 | Low dropout voltage regulator and related method |
-
2013
- 2013-04-11 CN CN 201320178055 patent/CN203276081U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111414033A (en) * | 2019-01-06 | 2020-07-14 | 联咏科技股份有限公司 | Low dropout voltage regulator and related method |
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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: 20131106 Termination date: 20150411 |
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| EXPY | Termination of patent right or utility model |