CN202840994U

CN202840994U - Unipolar and bipolar dual-purpose low power save electricity switching power supply

Info

Publication number: CN202840994U
Application number: CN 201220513269
Authority: CN
Inventors: 米万里
Original assignee: Individual
Current assignee: Individual
Priority date: 2012-10-09
Filing date: 2012-10-09
Publication date: 2013-03-27
Anticipated expiration: 2022-10-09

Abstract

The utility model provides an unipolar and bipolar dual-purpose low power save electricity switching power supply which comprises a first rectifying circuit 1, a filter circuit 2, a switching power supply power automatic control circuit 3, a high frequency transformer 4, a second rectifying circuit 5 and a second filter circuit 6, wherein, one power supply input end of the first rectifying circuit 1 is connected with one end of a power supply phase line L (N) when the unipolar alternating current power supply is started, the other power supply input end of the first rectifying circuit 1 is connected with one end of a load power supply line L (N) through a protective resistance (RF). The power supply input end of the first rectifying circuit 1 is connected with one end of a phase line of power supply L (N) when the bipolar alternating current power supply is started, the other power supply input end of the first rectifying circuit 1 is connected with one end of the other phase line of power supply N (L). The filter circuit 2 is connected with the first rectifying circuit 1, the switching power supply power automatic control circuit 3, the high frequency transformer 4, the second rectifying circuit 5 and the second filter circuit 6, output ends of the direct current are connected with each other in an electric mode.

Description

Single bipolar dual-purpose little power consumption battery-conserving switch power supply

Affiliated technical field

The utility model relates to a kind of bipolar and one pole electronic product wide operating voltage ac power supply apparatus, and particularly a kind of one pole (single live wire L or single zero line N) is controlled the electronic wall switch AC power circuit that electric light is used.

Background technology

At present, there are three large problems in existing one pole (AC power only has a live wire L or a zero line N) and bipolar (AC power has a live wire L and a zero line N) electronic product AC power:

1, existing one pole AC power, owing to only have a phase line and a lamp line in the wall embedded box, communication power supply can only pass through the leakage current of electric ballast to the one pole ac power supply, exchanging the input direct-current output current with unipolar power source by the electric ballast leakage current is directly proportional, existing one pole AC power can not automatically be adjusted according to one pole required by electronic product working direct current size and exchange the input leakage current, constant leakage current accumulation charging by electric ballast makes ballast moment work discharge, will cause the LED lamp, after turning off the light, the special light fixture such as electronic ballast lamp have frequent flash of light problem and the special light fixture of control the problems such as electricity shortage can occur.

2, existing bipolar AC power, owing to can not under one pole Alternating Current Power Supply environment, work, can't be applied directly in the one pole electronic product power source, existing bipolar AC power Alternating Current Power Supply input power consumption can not have or not size variation automatically to adjust economize on electricity according to DC load, has waste electric energy problem when making bipolar electronic product standby and work.

3, existing one pole AC power, owing to can not under bipolar Alternating Current Power Supply environment, work, can't be applied directly in the bipolar electronic product power source, existing one pole AC power operating voltage range is narrow between 185-240V, Alternating Current Power Supply input power consumption can not have or not size variation automatically to adjust economize on electricity according to DC load, has waste electric energy problem when making the standby of one pole electronic product and work.

In order to solve existing bipolar AC power and one pole AC power; since exist single bipolar can not dual-purpose compatible work problem; can not when electronic product standby and work, automatic power save waste the electric energy problem; the one pole AC power is applied to problems such as controlling the rear strobe light in LED lamp electronic ballast lamp pass in the one pole velocitron switch; technical problem to be solved in the utility model is to provide a kind of list bipolar dual-purpose little power consumption automatic electricity-saving AC/DC wide operating voltage Switching Power Supply; comprise; single bipolar dual-purpose little power consumption automatic electricity-saving AC/DC wide operating voltage switching power converters; wherein; single bipolar dual-purpose little power consumption automatic electricity-saving AC/DC switching power converters comprises: the first rectification circuit; the first filter circuit; Switching Power Supply automatic electricity-saving control circuit; high frequency transformer; the second rectification circuit; the second filter regulator circuit; its electrical connection is; during bipolar ac power supply; the first rectification circuit is full-wave rectification; the first rectification circuit two ac power input ends are connected with AC power two phase lines; during the one pole power supply; the first rectification circuit is full-wave rectification; the first rectification circuit one ac power input end is connected with load one end by protective resistance; phase line of another ac power input end of the first rectification circuit and AC power is connected; the first filter circuit is connected in parallel between the first rectification circuit direct current both positive and negative polarity output; high frequency transformer feedback winding is electrically connected with Switching Power Supply automatic electricity-saving control circuit; Switching Power Supply automatic electricity-saving control core circuit is integrated circuit; the high frequency transformer armature winding is electrically connected with the Switching Power Supply switch triode; high frequency transformer is secondary to be electrically connected with the second rectification circuit; high-frequency transformer coils is many windings; the second rectification circuit is halfwave rectifier, output DC source and the second filter regulator circuit; dc power output end is connected.

The beneficial effects of the utility model are, be applied to technique scheme bipolar and one pole electronic product AC power in, can produce beneficial effect and be:

1, technique scheme is applied in the one pole electronic product AC power, the working volts alternating current wide ranges is working properly between AC45-264V, can frequently not glisten after the special light fixtures such as LED lamp, electronic ballast lamp of monopole electronic switching control are turned off the light and can control special light fixture.

2, technique scheme is applied in the bipolar electronic product AC power, makes bipolar ac power supply input work power consumption have or not size variation automatically to adjust as required economize on electricity according to DC load, consume as required electric energy when making bipolar electronic product standby and work.

3, technique scheme is applied in the one pole electronic product AC power, make the power consumption of one pole ac power supply input work have or not size variation automatically to adjust as required economize on electricity according to DC load, consume as required electric energy when making the standby of one pole electronic product and work, can realize the two-way control function of light Intelligent programmable that one pole mechanical type wall switch can't be realized, be conducive to promote Smart Home and promote the wider application.

4, technique scheme is applied in the electronic product AC power, according to single bipolar Alternating Current Power Supply needs, need not to change direct application.

Description of drawings

The present invention is further described below in conjunction with accompanying drawing.

Fig. 1 is the bipolar dual-purpose little power consumption electricity-saving on-off circuit structure composition frame chart of list of the present utility model.

Fig. 2 is the bipolar dual-purpose little power consumption battery-conserving switch power principle block diagram of list of the present utility model.

Embodiment

In accompanying drawing 1; the utility model provides a kind of list bipolar dual-purpose little power consumption battery-conserving switch power supply; comprise: power consumption is adjusted AC/DC Switching Power Supply E automatically; wherein; power consumption is controlled AC/DC Switching Power Supply E automatically; by the first rectification circuit 1; filter circuit 2; Switching Power Supply energy consumption automatic control circuit 3; high frequency transformer 4; the second rectification circuit 5; the second filter regulator circuit 6 consists of; its electrical connection is; power consumption is adjusted among the AC/DC Switching Power Supply E automatically; during the one pole ac power supply; the first rectification circuit 1 AC power is inputted an end and is connected with one pole AC power phase line L (N) end; the first rectification circuit 1 AC power input other end is connected with load power source line one end by protective resistance RF; during bipolar ac power supply; the first rectification circuit 1 AC power is inputted an end and is connected with a phase line L of bipolar AC power (N) end; the the first rectification circuit 1 AC power input other end and bipolar AC power another root phase line N (L) end is connected; filter circuit 2 is connected to the first rectification circuit 1 direct current positive-negative output end and Switching Power Supply energy consumption automatic control circuit 3; between high frequency transformer 4 feeder ears; high frequency transformer 4 and the second rectification circuit 5; the second filter regulator circuit 6 is electrically connected the second rectification circuit 5 and the second filter regulator circuit 6; dc power output end is connected.

In accompanying drawing 2, power consumption is adjusted AC/DC Switching Power Supply E automatically, comprise: protective resistance RF, the first rectification circuit 1, filter circuit 2, Switching Power Supply energy consumption automatic control circuit 3, high frequency transformer 4, the second rectification circuit 5, the second filter regulator circuit 6, wherein, the first rectification circuit 1 is by the first diode, D1, the second diode, D2, the 3rd diode, D3, the 4th diode, D4 consists of; The second filter circuit 2 is by the first inductance, L1, the second inductance, and L2, the first electrochemical capacitor, C1, the second electrochemical capacitor, C2 consists of; Switching Power Supply energy consumption automatic control circuit 3 is by power management chip, IC, the first fet, U1, second switch triode, U2, the first resistance, R1, the second resistance, R2, the 3rd resistance, R3, the 4th resistance, R4, the 5th resistance, R5, the 6th resistance, R6, the 7th resistance, R7, the 3rd electric capacity, C3, the 4th electric capacity, C4, the 5th electric capacity, C5, the 6th electric capacity, C6, the 7th electric capacity, C7, the 5th diode, D5, the 6th diode, D6, the 7th diode, D7 consists of; High frequency transformer 4 is by the first winding, T1, the second winding, and T2, the tertiary winding, T3 consists of; The second rectification circuit 5 is by the 8th rectifier diode, and D8 consists of; The second filter regulator circuit 6 is by the 8th electrochemical capacitor, C8, the 9th electrochemical capacitor, and C9, the 8th resistance, R8, the 9th voltage stabilizing didoe, D9 consists of; Its electrical connection is, protective resistance, RF one end with exchange phase line one end, L (N) is connected, protective resistance, in the RF other end and the first rectification circuit 1, the first diode, D1 is anodal, the 3rd diode, the D3 negative pole is connected; The first diode, D1 negative pole and the second diode, D2 negative pole, in the first filter circuit 2, the first inductance, L1 one end, in the first filter circuit 2, the first electrochemical capacitor, the C1 positive pole is connected, the second diode, D2 negative pole and the first diode, the D1 negative pole, in the first filter circuit 2, the first inductance, L1 one end, in the first filter circuit 2, the first electrochemical capacitor, the C1 positive pole is connected, the second diode, anodal and the 4th diode of D2, the D4 negative pole, exchange another root phase line one end, N (L) is connected, the 3rd diode, anodal and the 4th diode of D3, D4 is anodal, in the first filter circuit 2, the second inductance, L2 one end, in the first filter circuit 2, the first electrochemical capacitor, the C1 negative pole is connected; In the first filter circuit 2, the first inductance, L1 one end and the first electrochemical capacitor, C1 is anodal, in the first rectification circuit 1, the first diode, D1 negative pole, the second diode, the D2 negative pole is connected, the first inductance, the L1 other end and the second electrochemical capacitor, C2 is anodal, in the Switching Power Supply energy consumption automatic control circuit 3, the first resistance, R1 one end, the 7th diode, D7 is anodal, the 3rd electric capacity, C3 one end, in the high frequency transformer 4, the first winding, T1 one end 1 pin is connected, the second inductance, L2 one end and the first electrochemical capacitor, the C1 negative pole, in the first rectification circuit 1, the 3rd diode, D3 is anodal, the 4th diode, the D4 positive pole is connected, the second inductance, the L2 other end and the second electrochemical capacitor, the C2 negative pole, in the Switching Power Supply energy consumption automatic control circuit 3, the 4th resistance, the R4 other end, the 5th resistance, the R5 other end, the 5th electric capacity, the C5 other end, the 6th electric capacity, the C6 other end, the 7th electric capacity, the C7 other end, power management chip, 5 pin of IC, in the high frequency transformer 4, the tertiary winding, the T3 other end 4 pin are connected; In the Switching Power Supply energy consumption automatic control circuit 3, power management chip, 1 pin of IC and the 7th electric capacity, C7 one end, the 6th electric capacity, C6 one end, the 7th resistance, R7 one end, the first fet, the source S of U1 is connected, power management chip, 2 pin of IC and the 5th electric capacity, C5 one end, the 5th resistance, R5 one end, the 6th resistance, R6 one end is connected, power management chip, 3 pin of IC and the first fet, the grid G of UI is connected, power management chip, 4 pin of IC and the 4th resistance, R4 one end, the second switch triode, the U2 emitter E is connected, power management chip, 5 pin of IC and the 5th electric capacity, the C5 other end, the 6th electric capacity, the C6 other end, the 7th electric capacity, the C7 other end, the 4th resistance, the R4 other end, the 5th resistance, the R5 other end, in the first filter circuit 2, the second inductance, the L2 other end, in the first filter circuit 2, the second electrochemical capacitor, the C2 negative pole, in the high frequency transformer 4, the tertiary winding, the T3 other end 4 pin are connected power management chip, 6 pin of IC and second switch triode, the base stage B of U2 is connected, second switch triode, the collector electrode C of U2 and the 5th diode, D5 is anodal, in the high frequency transformer 4, the first winding, the T1 other end 2 pin are connected, the 5th diode, D5 negative pole and the second resistance, the R2 other end, the 3rd resistance, the R3 other end is connected, the second resistance, R2 one end and the 7th diode, the D7 negative pole is connected, the 7th diode, anodal and the 3rd electric capacity of D7, C3 one end, the first resistance, R1 one end, in the high frequency transformer 4, the first winding, T1 one end 1 pin, in the first filter circuit 2, the first inductance, the L1 other end, in the first filter circuit 2, the second electrochemical capacitor, the C2 positive pole is connected, the 3rd resistance, R3 one end and the 3rd electric capacity, the C3 other end is connected, the 3rd electric capacity, C3 one end and the 7th diode, D7 is anodal, the first resistance, R1 one end, in the high frequency transformer 4, the first winding, T1 one end 1 pin, in the first filter circuit 2, the first inductance, the L1 other end, in the first filter circuit 2, the second electrochemical capacitor, the C2 positive pole is connected, the first resistance, the R1 other end and the first fet, the drain D of UI is connected, the 7th resistance, the R7 other end and the 6th diode, the D6 negative pole, the 4th electric capacity, C4 one end is connected, the 6th diode, anodal and the 4th electric capacity of D6, the C4 other end, the 6th resistance, the R6 other end, in the high frequency transformer 4, the tertiary winding, T3 one end 3 pin are connected; In the high frequency transformer 4, the first winding, in T1 one end, 1 pin and the Switching Power Supply energy consumption automatic control circuit 3, the 3rd electric capacity, C3 one end, the 7th diode, D7 is anodal, the first resistance, R1 one end, in the first filter circuit 2, the first inductance, the L1 other end, the second electrochemical capacitor, the C2 positive pole is connected, the first winding, in the T1 other end 2 pin and the Switching Power Supply energy consumption automatic control circuit 3, the 5th diode, D5 is anodal, the second switch triode, U2 collector electrode C is connected, the second winding, in T2 one end, 5 pin and the second rectification circuit 5, the 8th diode, the D8 positive pole is connected, the second winding, in the T2 other end 6 pin and the second filtering voltage regulation the 6th, the 8th electrochemical capacitor, C8 negative pole, the 9th electrochemical capacitor, the C9 negative pole, the 8th resistance, the R8 other end, the 9th voltage stabilizing didoe, D9 is anodal, DC power supply output negative pole GND-is connected the tertiary winding, in T3 one end, 3 pin and the Switching Power Supply energy consumption automatic control circuit 3, the 6th resistance, the R6 other end, the 6th diode, D6 is anodal, the 4th electric capacity, the C4 other end is connected, the tertiary winding, in the T3 other end 4 pin and the Switching Power Supply energy consumption automatic control circuit 3, power management chip, 5 pin of IC, the 5th electric capacity, the C5 other end, the 6th electric capacity, the C6 other end, the 7th electric capacity, the C7 other end, the 4th resistance, the R4 other end, the 5th resistance, the R5 other end, in the first filter circuit 2, the second inductance, the L2 other end, in the first filter circuit 2, the second electrochemical capacitor, the C2 negative pole is connected; In the second rectification circuit 2, the 8th diode, in D8 negative pole and the second filter regulator circuit 2, the 8th electrochemical capacitor, C8 is anodal, the 9th electrochemical capacitor, C9 is anodal, the 8th resistance, R8 one end, the 9th voltage stabilizing didoe, and D9 negative pole, DC power supply output cathode VCC+ are connected, the 8th diode, in D8 positive pole and the high frequency transformer 4, the second winding, T2 one end 5 pin are connected; In the second filter regulator circuit 2, the 8th electrochemical capacitor, anodal and the 9th electrochemical capacitor of C8, C9 is anodal, the 8th resistance, R8 one end, the 9th voltage stabilizing didoe, in D9 negative pole, the second rectification circuit 2, the 8th diode, D8 negative pole, DC power supply output cathode VCC+ are connected the 8th electrochemical capacitor, C8 negative pole and the 9th electrochemical capacitor, C9 negative pole, the 8th resistance, the R8 other end, the 9th voltage stabilizing didoe, positive pole, high frequency transformer 4 in, the second winding, the T2 other end 6 pin, DC power supply output negative pole GND-are connected.

Claims

1. bipolar dual-purpose little power consumption battery-conserving switch power supply of list, comprise: power consumption is adjusted AC/DC wide operating voltage Switching Power Supply (E) automatically, it is characterized in that, a power consumption is controlled AC/DC wide operating voltage Switching Power Supply (E) automatically, comprise, protective resistance (RF), the first rectification circuit (1), filter circuit (2), Switching Power Supply energy consumption automatic control circuit (3), high frequency transformer (4), the second rectification circuit (5), the second filter regulator circuit (6), wherein, during the one pole ac power supply, phase line one end of AC power (L or N) is connected with protective resistance (RF) end, in protective resistance (RF) other end and the first rectification circuit (1), the first diode (D1) positive pole, the 3rd diode (D3) negative pole is connected, another root phase line one end (N or L) of AC power is connected with load (RL) end, load (RL) other end and the second diode (D2) positive pole, the 4th diode (D4) negative pole is connected; During bipolar ac power supply, phase line one end of AC power (L or N) is connected with protective resistance (RF) end, in protective resistance (RF) other end and the first rectification circuit (1), the first diode (D1) is anodal, the 3rd diode (D3) negative pole is connected, and another root phase line one end (N or L) of AC power is anodal with the second diode (D2), the 4th diode (D4) negative pole is connected; The first diode (D1) negative pole and the second diode (D2) negative pole, in the first filter circuit (2), the first inductance (L1) end, in the first filter circuit (2), the first electrochemical capacitor (C1) positive pole is connected, the second diode (D2) negative pole and the first diode (D1) negative pole, in the first filter circuit (2), the first inductance (L1) end, in the first filter circuit (2), the first electrochemical capacitor (C1) positive pole is connected, anodal and the 4th diode (D4) negative pole of the second diode (D2), exchanging another root phase line one end (N or L) is connected, anodal and the 4th diode (D4) positive pole of the 3rd diode (D3), in the first filter circuit (2), the second inductance (L2) end, in the first filter circuit (2), the first electrochemical capacitor (C1) negative pole is connected; In the first filter circuit (2), the first inductance (L1) end and the first electrochemical capacitor (C1) positive pole, in the first rectification circuit (1), the first diode (D1) negative pole, the second diode (D2) negative pole is connected, the first inductance (L1) other end and the second electrochemical capacitor (C2) positive pole, in the Switching Power Supply energy consumption automatic control circuit (3), the first resistance (R1) end, the 7th diode (D7) positive pole, the 3rd electric capacity (C3) end, in the high frequency transformer (4), the first winding (T1) end (1) pin is connected, the second inductance (L2) end and the first electrochemical capacitor (C1) negative pole, in the first rectification circuit (1), the 3rd diode (D3) positive pole, the 4th diode (D4) positive pole is connected, the second inductance (L2) other end and the second electrochemical capacitor (C2) negative pole, in the Switching Power Supply energy consumption automatic control circuit (3), the 4th resistance (R4) other end, the 5th resistance (R5) other end, the 5th electric capacity (C5) other end, the 6th electric capacity (C6) other end, the 7th electric capacity (C7) other end, (5) pin of power management chip (IC), in the high frequency transformer (4), the tertiary winding (T3) other end (4) pin is connected; In the Switching Power Supply energy consumption automatic control circuit (3), (1) pin of power management chip (IC) and the 7th electric capacity (C7) end, the 6th electric capacity (C6) end, the 7th resistance (R7) end, the source electrode (S) of the first fet (U1) is connected, (2) pin of power management chip (IC) and the 5th electric capacity (C5) end, the 5th resistance (R5) end, the 6th resistance (R6) end is connected, (3) pin of power management chip (IC) is connected with the grid (G) of the first fet (UI), (4) pin of power management chip (IC) and the 4th resistance (R4) end, second switch triode (U2) emitter (E) is connected, (5) pin of power management chip (IC) and the 5th electric capacity (C5) other end, the 6th electric capacity (C6) other end, the 7th electric capacity (C7) other end, the 4th resistance (R4) other end, the 5th resistance (R5) other end, in the first filter circuit (2), the second inductance (L2) other end, in the first filter circuit (2), the second electrochemical capacitor (C2) negative pole, in the high frequency transformer (4), the tertiary winding (T3) other end (4) pin is connected, (6) pin of power management chip (IC) is connected with the base stage (B) of second switch triode (U2), the collector electrode (C) of second switch triode (U2) and the 5th diode (D5) positive pole, in the high frequency transformer (4), the first winding (T1) other end (2) pin is connected, the 5th diode (D5) negative pole and the second resistance (R2) other end, the 3rd resistance (R3) other end is connected, the second resistance (R2) end is connected with the 7th diode (D7) negative pole, anodal and the 3rd electric capacity (C3) end of the 7th diode (D7), the first resistance (R1) end, in the high frequency transformer (4), the first winding (T1) end (1) pin, in the first filter circuit (2), the first inductance (L1) other end, in the first filter circuit (2), the second electrochemical capacitor (C2) positive pole is connected, the 3rd resistance (R3) end is connected with the 3rd electric capacity (C3) other end, the 3rd electric capacity (C3) end and the 7th diode (D7) positive pole, the first resistance (R1) end, in the high frequency transformer (4), the first winding (T1) end (1) pin, in the first filter circuit (2), the first inductance (L1) other end, in the first filter circuit (2), the second electrochemical capacitor (C2) positive pole is connected, the first resistance (R1) other end is connected with the drain electrode (D) of the first fet (UI), the 7th resistance (R7) other end and the 6th diode (D6) negative pole, the 4th electric capacity (C4) end is connected, anodal and the 4th electric capacity (C4) other end of the 6th diode (D6), the 6th resistance (R6) other end, in the high frequency transformer (4), the tertiary winding (T3) end (3) pin is connected; In the high frequency transformer (4), in the first winding (T1) end (1) pin and the Switching Power Supply energy consumption automatic control circuit (3), the 3rd electric capacity (C3) end, the 7th diode (D7) positive pole, the first resistance (R1) end, in the first filter circuit (2), the first inductance (L1) other end, the second electrochemical capacitor (C2) positive pole is connected, in the first winding (T1) other end (2) pin and the Switching Power Supply energy consumption automatic control circuit (3), the 5th diode (D5) positive pole, second switch triode (U2) collector electrode (C) is connected, in the second winding (T2) end (5) pin and the second rectification circuit (5), the 8th diode (D8) positive pole is connected, in the second winding (T2) other end (6) pin and the second filtering voltage regulation (6), the 8th electrochemical capacitor (C8) negative pole, the 9th electrochemical capacitor (C9) negative pole, the 8th resistance (R8) other end, the 9th voltage stabilizing didoe (D9) positive pole, the DC power supply output negative pole (GND one) be connected, in the tertiary winding (T3) end (3) pin and the Switching Power Supply energy consumption automatic control circuit (3), the 6th resistance (R6) other end, the 6th diode (D6) positive pole, the 4th electric capacity (C4) other end is connected, in the tertiary winding (T3) other end (4) pin and the Switching Power Supply energy consumption automatic control circuit (3), (5) pin of power management chip (IC), the 5th electric capacity (C5) other end, the 6th electric capacity (C6) other end, the 7th electric capacity (C7) other end, the 4th resistance (R4) other end, the 5th resistance (R5) other end, in the first filter circuit (2), the second inductance (L2) other end, in the first filter circuit (2), the second electrochemical capacitor (C2) negative pole is connected; In the second rectification circuit (2), in the 8th diode (D8) negative pole and the second filter regulator circuit (2), the 8th electrochemical capacitor (C8) positive pole, the 9th electrochemical capacitor (C9) positive pole, the 8th resistance (R8) end, the 9th voltage stabilizing didoe (D9) negative pole, DC power supply output cathode (VCC+) are connected, in the 8th diode (D8) positive pole and the high frequency transformer (4), the second winding (T2) end (5) pin is connected; In the second filter regulator circuit (2), anodal and the 9th electrochemical capacitor (C9) positive pole of the 8th electrochemical capacitor (C8), the 8th resistance (R8) end, the 9th voltage stabilizing didoe (D9) negative pole, in the second rectification circuit (2), the 8th diode (D8) negative pole, DC power supply output cathode (VCC+) is connected, the 8th electrochemical capacitor (C8) negative pole and the 9th electrochemical capacitor (C9) negative pole, the 8th resistance (R8) other end, the 9th voltage stabilizing didoe (D9) positive pole, in the high frequency transformer (4), the second winding (T2) other end (6) pin, DC power supply output negative pole (GND-) is connected.

2. the bipolar dual-purpose little power consumption battery-conserving switch power supply of root a tree name list claimed in claim 1, it is characterized in that, described Switching Power Supply energy consumption automatic control circuit (3) is by power management chip (IC), the first fet (U1), second switch triode (U2), the first resistance (R1), the second resistance (R2), the 3rd resistance (R3), the 4th resistance (R4), the 5th resistance (R5), the 6th resistance (R6), the 7th resistance (R7), the 3rd electric capacity (C3), the 4th electric capacity (C4), the 5th electric capacity (C5), the 6th electric capacity (C6), the 7th electric capacity (C7), the 5th diode (D5), the 6th diode (D6), the 7th diode (D7) consists of.

3. the bipolar dual-purpose little power consumption battery-conserving switch power supply of root a tree name list claimed in claim 1, it is characterized in that, during the one pole ac power supply, phase line one end of AC power (L or N) is connected through the Alternating Current Power Supply input of protective resistance (RF) with single bipolar two-way switch power supply, and another root phase line one end (N or L) of AC power is connected through overload (RL) another Alternating Current Power Supply input with single bipolar two-way switch power supply; During bipolar ac power supply; phase line one end of AC power (L or N) is connected through the Alternating Current Power Supply input of protective resistance (RF) with single bipolar two-way switch power supply, and another root phase line one end (N or L) of AC power is connected with another Alternating Current Power Supply input of single bipolar two-way switch power supply.