CN109560589B - Iron tower computer lab stand-by battery power supply system that makes good use of - Google Patents
Iron tower computer lab stand-by battery power supply system that makes good use of Download PDFInfo
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- CN109560589B CN109560589B CN201910004860.5A CN201910004860A CN109560589B CN 109560589 B CN109560589 B CN 109560589B CN 201910004860 A CN201910004860 A CN 201910004860A CN 109560589 B CN109560589 B CN 109560589B
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J9/00—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting
- H02J9/04—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source
- H02J9/06—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems
- H02J9/061—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems for DC powered loads
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J2207/00—Indexing scheme relating to details of circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J2207/20—Charging or discharging characterised by the power electronics converter
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J9/00—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting
- H02J9/04—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source
- H02J9/06—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems
- H02J9/068—Electronic means for switching from one power supply to another power supply, e.g. to avoid parallel connection
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Abstract
The invention discloses a power supply system for a spare battery of an iron tower machine room, which is characterized by comprising a single chip microcomputer, a change-over switch, a voltage sensor, a power supply module, an electromagnetic circuit breaker B, a surge protector, a charging module, a lithium battery, a voltage adjusting module, a voltage converter, a power supply and an electromagnetic circuit breaker A. The invention has simple structure and strong practicability, can effectively charge, and is provided with the voltage adjusting module at the output end of the lithium battery, and the voltage adjusting module can adjust the voltage and current output by the lithium battery, so that the voltage output by the lithium battery can be kept stable, and the electric equipment of the iron tower machine room can work more stably.
Description
Technical Field
The invention relates to a power supply system, in particular to a power supply system for utilizing a standby battery in an iron tower machine room.
Background
With the increasing quantity of electric automobiles, the offline amount of lithium batteries used by the electric automobiles is also increased continuously, most of the offline lithium batteries have discharge time and discharge amount which cannot meet the use standard of the electric automobiles, and most of the offline lithium batteries have discharge time and discharge amount which can meet the electricity utilization requirements of general electric equipment, namely most of the offline lithium batteries can be reused, and the offline lithium batteries are usually used for replacing standby storage batteries of iron tower machine rooms. The lithium battery that rolls off the production line through using replaces the original battery of iron tower computer lab, can effectual reduction iron tower computer lab use cost. However, the lithium battery power supply system has the problem that output current is easy to be unstable, so that equipment in an iron tower machine room is unstable in working, and the iron tower machine room cannot normally operate.
Disclosure of Invention
The invention aims to overcome the defects of a power supply system for an offline lithium battery of an electric automobile and provides a power supply system for an iron tower machine room standby battery.
The purpose of the invention is realized by the following technical scheme: a stand-by battery old-recycling power supply system for an iron tower machine room comprises a single chip microcomputer, a change-over switch, a voltage sensor, a power supply module, an electromagnetic circuit breaker B, a surge protector, a charging module, a lithium battery, a voltage adjusting module, a voltage converter, a power supply and an electromagnetic circuit breaker A, wherein the voltage sensor, the power supply module and the electromagnetic circuit breaker B are all connected with the single chip microcomputer; the electromagnetic circuit breaker A is connected with a power supply, and the lithium battery is respectively connected with the power supply module and the electromagnetic circuit breaker B.
The voltage adjusting module comprises a transformer T1, a resistor R1 with one end connected with the dotted end of a primary inductance coil of the transformer T1 and the other end grounded, a polar capacitor C1 with the anode connected with the non-dotted end of a secondary inductance coil of the transformer T1 and the cathode grounded, a control circuit respectively connected with the cathode of the polar capacitor C1 and the dotted end of the secondary inductance coil of the transformer T1, a voltage adjusting circuit connected with control current, and a voltage stabilizing controllable circuit respectively connected with the voltage adjusting circuit and the control circuit; the non-dotted terminal of the primary side inductance coil of the transformer T1 is connected with the electromagnetic circuit breaker B; the voltage-stabilizing controllable circuit is connected with the change-over switch.
Further, the lithium battery is an offline battery of the electric automobile.
The control circuit comprises a unidirectional thyristor VL, a resistor R2, a capacitor C2 and a light-emitting diode DL, wherein one end of the resistor R2 is connected with the P pole of the unidirectional thyristor VL, the other end of the resistor R2 is connected with the end of the transformer T1 secondary side inductance coil with the same name after passing through a relay K, one end of the capacitor C2 is connected with the adjusting end of the unidirectional thyristor VL, the other end of the capacitor C2 is connected with the N pole of the unidirectional thyristor VL, the N pole of the capacitor C is connected with the N pole of the unidirectional thyristor VL, and the P pole of the capacitor C is connected with the B contact of the relay K after passing through a resistor R3; the negative electrode of the polar capacitor C1 is connected with the N pole of the unidirectional thyristor VL; the contact A of the relay K is connected with the voltage-stabilizing controllable circuit; and the regulating end of the unidirectional thyristor VL is connected with the voltage regulating circuit.
Still further, the voltage regulating circuit comprises a triode Q1, a triode Q3, an adjustable resistor R4 with one end connected with the collector of the triode Q1 and the other end connected with the base of the triode Q1, a polar capacitor C3 with the positive electrode connected with the collector of the triode Q1 after passing through a resistor R5 and the negative electrode connected with the emitter of the triode Q1, a polar capacitor C4 with the negative electrode connected with the emitter of the triode Q1 and the positive electrode connected with the base of the triode Q3 sequentially through a resistor R6 and a resistor R7; the collector of the triode Q3 is electrically connected with the adjusting end of the unidirectional thyristor VL, and the emitter of the triode Q3 is connected with the positive electrode of the polar capacitor C3; the emitting electrode of the triode Q1 is connected with the adjusting end of the adjustable resistor R4; the emitter of the triode Q3 and the collector of the triode Q1 are respectively connected with a voltage-stabilizing controllable circuit; the connection point of the resistor R6 and the resistor R7 is connected with the voltage-stabilizing controllable circuit.
The voltage-stabilizing controllable circuit comprises a voltage-stabilizing chip U1, a triode Q2, and a diode D1, wherein the N pole of the diode D1 is connected with the VIN pin of the voltage-stabilizing chip U1, and the P pole of the diode D1 is connected with the VOUT pin of the voltage-stabilizing chip U1; the VIN pin of the voltage stabilizing chip U1 is connected with the contact A of the relay K, and the ACV pin of the voltage stabilizing chip U1 is connected with the collector electrode of the triode Q1; the emitter of the triode Q3 is connected with the base of the triode Q2; an emitter of the triode Q2 is connected with a connection point of the resistor R6 and the resistor R7, a collector of the triode Q2 is connected with a VIN pin of the voltage stabilizing chip U1, and an emitter of the triode Q2 serves as an output end of the voltage stabilizing controllable circuit; and the VOUT pin of the voltage stabilizing chip U1 is connected with the base electrode of the triode Q2.
Furthermore, the voltage regulation chip U1 is an LM317 integrated chip.
Compared with the prior art, the invention has the following advantages and beneficial effects:
(1) the invention has simple structure and strong practicability, can effectively charge, and is provided with the voltage adjusting module at the output end of the lithium battery, and the voltage adjusting module can adjust the voltage and current output by the lithium battery, so that the voltage output by the lithium battery can be kept stable, and the electric equipment of the iron tower machine room can work more stably.
(2) The voltage regulation module of the invention combines the control circuit, the voltage regulation circuit and the voltage-stabilizing controllable circuit, the voltage regulation circuit can regulate the static bias current in the voltage output by the lithium battery, and the voltage-stabilizing controllable circuit can improve the precision of the output voltage, thereby ensuring the stability of the output voltage and current.
Drawings
FIG. 1 is a block diagram of the present invention.
Fig. 2 is a schematic circuit diagram of the voltage adjustment module according to the present invention.
Detailed Description
The present invention will be described in further detail with reference to examples, but the embodiments of the present invention are not limited thereto.
Examples
As shown in fig. 1 and 2, the invention discloses a power supply system for iron tower machine room standby battery utilization, which comprises a single chip microcomputer, a change-over switch, a voltage sensor, a power supply module, an electromagnetic circuit breaker B, a surge protector, a charging module, a lithium battery, a voltage adjusting module, a voltage converter, a power supply and an electromagnetic circuit breaker A. The voltage regulation module is shown in fig. 2, and includes a transformer T1, a resistor R1, a polar capacitor C1, a control circuit, a voltage regulation controllable circuit, and a voltage regulation circuit.
And the voltage sensor, the power supply module and the electromagnetic circuit breaker B are all connected with the singlechip. The surge protector is connected with the voltage sensor. The charging module is connected with the surge protector. The lithium battery is connected with the charging module. The voltage adjusting module is connected in series between the electromagnetic circuit breaker B and the change-over switch. The voltage converter is connected with the change-over switch. The power supply is connected with the surge protector. The electromagnetic cut-off switch A is connected with the voltage converter. The electromagnetic circuit breaker A is connected with a power supply, and the lithium battery is respectively connected with the power supply module and the electromagnetic circuit breaker B. The lithium battery is an offline battery of the electric automobile.
During implementation, the lithium battery is used as energy storage equipment of the power supply system, and meanwhile, the lithium battery is also an important power supply for working of equipment in an iron tower machine room. The power supply is 220V commercial power, when the power supply outputs voltage, the electromagnetic circuit-breaking switch A is conducted, 220V alternating current voltage is converted through the voltage converter, the voltage converter is the prior art, the voltage converter converts the 220V alternating current voltage into 48V direct current voltage and transmits the 48V direct current voltage to the change-over switch, at the moment, the switch group connected with the voltage converter is conducted, and the iron tower machine room equipment is electrified. Meanwhile, the voltage output by the power supply is loaded on the surge protector, the surge protector can restrain instantaneous high current generated when the power supply is output, and the surge protector provides stable voltage for the charging module. The charging module is connected with the lithium battery and outputs charging current for the lithium battery. The lithium battery is also used as a working power supply of the single chip microcomputer, and the lithium battery provides 3.5V working voltage required by the single chip microcomputer after the power supply module is used for regulating voltage for the single chip microcomputer.
When the voltage sensor inputs the voltage in the morning, namely the power supply stops outputting the voltage due to power failure, at the moment, the electromagnetic circuit breaker A is cut off when power is lost, and the change-over switch is cut off when power is lost. The voltage on the detection port of the singlechip is reduced, and the singlechip outputs control current to the connected electromagnetic circuit breaker B. The electromagnetic circuit breaker B is electrified and conducted, and the voltage output by the lithium battery is loaded on the voltage adjusting module through the electromagnetic circuit breaker B. The voltage adjusting module adjusts static bias current in the voltage output by the lithium battery and outputs high-precision 48V voltage to the change-over switch. The switch group connected with the voltage adjusting module by the change-over switch is electrified and conducted, so that the lithium battery provides stable 48V working voltage for the iron tower machine room equipment, and the iron tower machine room equipment can also keep stable work after losing commercial power.
Further, as shown in fig. 2, the voltage regulation module includes a transformer T1, a resistor R1 with a resistance of 100k Ω, a polar capacitor C1 with a capacitance of 0.1 μ F, a control circuit, a voltage regulation circuit, and a voltage regulation controllable circuit.
When the transformer T1 primary side inductance coil is connected, one end of the resistor R1 is connected with the end with the same name of the primary side inductance coil of the transformer T1, and the other end of the resistor R1 is grounded. The positive pole of the polar capacitor C1 is connected with the non-dotted terminal of the secondary inductance coil of the transformer T1, and the negative pole is grounded. The control circuit is respectively connected with the cathode of the polar capacitor C1 and the dotted terminal of the secondary side inductance coil of the transformer T1. The voltage regulating circuit is connected with the control current. The voltage-stabilizing controllable circuit is respectively connected with the voltage regulating circuit and the control circuit. The non-dotted terminal of the primary side inductance coil of the transformer T1 is connected with the electromagnetic circuit breaker B; the voltage-stabilizing controllable circuit is connected with the change-over switch.
The control circuit comprises a unidirectional thyristor VL with the model number of 2N65S, a resistor R2 with the resistance value of 510K omega, a resistor R3 with the resistance value of 2K omega, a relay K with bidirectional switching, a polar capacitor C2 with the capacitance value of 0.01 mu F and a light emitting diode DL.
When the three-phase current transformer is connected, one end of the resistor R2 is connected with the P pole of the unidirectional thyristor VL, and the other end of the resistor R2 is connected with the end with the same name of the secondary inductance coil of the transformer T1 after passing through the relay K. One end of the capacitor C2 is connected with the adjusting end of the unidirectional thyristor VL, and the other end is connected with the N pole of the unidirectional thyristor VL. The N pole of the light emitting diode DL is connected with the N pole of the unidirectional thyristor VL, and the P pole of the light emitting diode DL is connected with the contact B of the relay K after passing through the resistor R3. The negative electrode of the polar capacitor C1 is connected with the N pole of the unidirectional thyristor VL; the contact A of the relay K is connected with the voltage-stabilizing controllable circuit; and the regulating end of the unidirectional thyristor VL is connected with the voltage regulating circuit.
Still further, the voltage regulating circuit comprises a triode Q1 with the model number of 3DG12, a triode Q3 with the model number of 3AX81, an adjustable resistor R4 with the resistance value of 3.9k omega, a resistor R5 with the resistance value of 200 omega, a resistor R6 with the resistance value of 10k omega, a resistor R7 with the resistance value of 1k omega, a capacitor C3 with the capacitance value of 10 muF polarity and a capacitor C4 with the capacitance value of 220 muF polarity.
When the adjustable resistor R4 is connected, one end of the adjustable resistor R4 is connected with the collector of the triode Q1, and the other end of the adjustable resistor R4 is connected with the base of the triode Q1. The positive pole of the polar capacitor C3 is connected with the collector of the triode Q1 after passing through the resistor R5, and the negative pole is connected with the emitter of the triode Q1. The negative electrode of the polar capacitor C4 is connected with the emitter of the triode Q1, and the positive electrode is connected with the base of the triode Q3 through the resistor R6 and the resistor R7 in sequence.
The collector of the triode Q3 is electrically connected with the adjusting end of the unidirectional thyristor VL, and the emitter of the triode Q3 is connected with the positive electrode of the polar capacitor C3; the emitting electrode of the triode Q1 is connected with the adjusting end of the adjustable resistor R4; the emitter of the triode Q3 and the collector of the triode Q1 are respectively connected with a voltage-stabilizing controllable circuit; the connection point of the resistor R6 and the resistor R7 is connected with the voltage-stabilizing controllable circuit.
The voltage regulation controllable circuit comprises a voltage regulation chip U1, a triode Q2 and a diode D1. The voltage stabilizing chip U1 in this embodiment is implemented by an integrated chip of the type LM 317; the triode Q2 is realized by adopting a triode with the model number of 3DG 12; and the diode D1 adopts a diode with the model number of 1N 4013.
When the diode D1 is connected, the N pole is connected with the VIN pin of the voltage stabilizing chip U1, and the P pole is connected with the VOUT pin of the voltage stabilizing chip U1. The VIN pin of the voltage stabilizing chip U1 is connected with the contact A of the relay K, and the ACV pin of the voltage stabilizing chip U1 is connected with the collector electrode of the triode Q1; the emitter of the triode Q3 is connected with the base of the triode Q2; an emitter of the triode Q2 is connected with a connection point of the resistor R6 and the resistor R7, a collector of the triode Q2 is connected with a VIN pin of the voltage stabilizing chip U1, and an emitter of the triode Q2 serves as an output end of the voltage stabilizing controllable circuit; and the VOUT pin of the voltage stabilizing chip U1 is connected with the base electrode of the triode Q2.
When the lithium battery runs, the voltage output by the lithium battery is reduced through the transformer T, the resistor R1 of the lithium battery is the reduction resistor of the transformer T, and the voltage output by the secondary side of the transformer T is filtered through the polar capacitor C1 serving as the filter capacitor to obtain direct-current voltage of about 48V and then the direct-current voltage is sent to the control circuit. When the polar capacitor C1 is filtered to obtain stable 48V direct current voltage, the contact A of the bidirectional contact of the relay K is conducted, the voltage-stabilizing controllable circuit is electrified, the voltage-stabilizing chip U1 is realized by adopting an LM317 integrated chip, the maximum output current of the LM317 integrated chip is 10A, and the integrated chip is easy to have the defect of overlarge input-output end voltage difference, so that the output current is expanded by adopting a high-power triode Q2 to be consistent with the reference voltage, the stabilized voltage is transmitted to the emitter change-over switch through a triode Q2, and the change-over switch is conducted to provide stable 48V working voltage for iron tower equipment.
When the DC voltage filtered by the polar capacitor C1 is not higher than 48V, the contact B of the bidirectional contact of the relay K is conducted, the contact A is disconnected, the resistor R3 is electrified, and the light-emitting diode DL is lightened to indicate that the current limiting state is realized. At this time, the level on the P pole of the unidirectional thyristor VL is increased to turn on the regulating end of the unidirectional thyristor VL, and the polar capacitor C2 on the N pole of the unidirectional thyristor VL plays a role in anti-interference, so that the false triggering of the thyristor can be reduced. When the voltage regulating circuit is electrified, the triode Q3 is conducted, and the ACV pin of the voltage stabilizing chip U1 obtains high voltage, so that the switch tube in the voltage stabilizing chip U1 is cut off. The diode Q2 is normally in the off state, and the adjustable resistor R4 is a wire-wound potentiometer, so that the output voltage can be accurately adjusted. At this time, the adjustable resistor R4 provides a bias voltage for the base of the transistor Q2, the transistor Q2 is turned on, so that the voltage on the ACV pin of the voltage regulation chip U is reduced, the switching tube in the voltage regulation chip U is turned on, and the voltage regulation chip U1 outputs a stable 48V dc voltage.
As described above, the present invention can be preferably realized.
Claims (4)
1. A stand-by battery old-recycling power supply system of an iron tower machine room is characterized by comprising a single chip microcomputer, a change-over switch, a voltage sensor, a power supply module, an electromagnetic circuit breaker B, a surge protector, a charging module, a lithium battery, a voltage adjusting module, a voltage converter, a power supply and an electromagnetic circuit breaker A, wherein the voltage sensor, the power supply module and the electromagnetic circuit breaker B are all connected with the single chip microcomputer; the electromagnetic circuit breaker A is connected with a power supply, and the lithium battery is respectively connected with the power supply module and the electromagnetic circuit breaker B;
the voltage adjusting module comprises a transformer T1, a resistor R1 with one end connected with the dotted end of a primary inductance coil of the transformer T1 and the other end grounded, a polar capacitor C1 with the anode connected with the non-dotted end of a secondary inductance coil of the transformer T1 and the cathode grounded, a control circuit respectively connected with the cathode of the polar capacitor C1 and the dotted end of the secondary inductance coil of the transformer T1, a voltage adjusting circuit connected with control current, and a voltage stabilizing controllable circuit respectively connected with the voltage adjusting circuit and the control circuit; the non-dotted terminal of the primary side inductance coil of the transformer T1 is connected with the electromagnetic circuit breaker B; the voltage-stabilizing controllable circuit is connected with the change-over switch;
the control circuit comprises a unidirectional thyristor VL, a resistor R2, a capacitor C2 and a light-emitting diode DL, wherein one end of the resistor R2 is connected with the P pole of the unidirectional thyristor VL, the other end of the resistor R2 is connected with the end of the transformer T1 secondary side inductance coil with the same name after passing through a relay K, one end of the capacitor C2 is connected with the adjusting end of the unidirectional thyristor VL, the other end of the capacitor C2 is connected with the N pole of the unidirectional thyristor VL, the N pole of the capacitor C is connected with the N pole of the unidirectional thyristor VL, and the P pole of the capacitor C is connected with the B contact of the relay K after passing through a resistor R3; the negative electrode of the polar capacitor C1 is connected with the N pole of the unidirectional thyristor VL; the contact A of the relay K is connected with the voltage-stabilizing controllable circuit; the adjusting end of the unidirectional thyristor VL is connected with the voltage adjusting circuit;
the voltage regulating circuit comprises a triode Q1, a triode Q3, an adjustable resistor R4, a polar capacitor C3, a cathode of which is connected with the collector of the triode Q1 after passing through a resistor R5, and an emitter of the triode Q1, and a polar capacitor C4, an anode of which is connected with the emitter of the triode Q1 and an anode of which is connected with the base of the triode Q3 through a resistor R6 and a resistor R7 in sequence, wherein one end of the adjustable resistor R4 is connected with the collector of the triode Q1, and the other end of the adjustable resistor R4 is connected with the base of the triode Q1; the collector of the triode Q3 is electrically connected with the adjusting end of the unidirectional thyristor VL, and the emitter of the triode Q3 is connected with the positive electrode of the polar capacitor C3; the emitting electrode of the triode Q1 is connected with the adjusting end of the adjustable resistor R4; the emitter of the triode Q3 and the collector of the triode Q1 are respectively connected with a voltage-stabilizing controllable circuit; the connection point of the resistor R6 and the resistor R7 is connected with the voltage-stabilizing controllable circuit.
2. The iron tower machine room backup battery old-fashioned power supply system according to claim 1, characterized in that: the lithium battery is an offline battery of the electric automobile.
3. The iron tower machine room backup battery old-fashioned power supply system according to claim 2, characterized in that: the voltage-stabilizing controllable circuit comprises a voltage-stabilizing chip U1, a triode Q2, and a diode D1, wherein the N pole of the diode D1 is connected with the VIN pin of the voltage-stabilizing chip U1, and the P pole of the diode D1 is connected with the VOUT pin of the voltage-stabilizing chip U1; the VIN pin of the voltage stabilizing chip U1 is connected with the contact A of the relay K, and the ACV pin of the voltage stabilizing chip U1 is connected with the collector electrode of the triode Q1; the emitter of the triode Q3 is connected with the base of the triode Q2; an emitter of the triode Q2 is connected with a connection point of the resistor R6 and the resistor R7, a collector of the triode Q2 is connected with a VIN pin of the voltage stabilizing chip U1, and an emitter of the triode Q2 serves as an output end of the voltage stabilizing controllable circuit; and the VOUT pin of the voltage stabilizing chip U1 is connected with the base electrode of the triode Q2.
4. The iron tower machine room backup battery old-fashioned power supply system according to claim 3, characterized in that: the voltage stabilizing chip U1 is an LM317 integrated chip.
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| CN201910004860.5A CN109560589B (en) | 2019-01-03 | 2019-01-03 | Iron tower computer lab stand-by battery power supply system that makes good use of |
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| CN201910004860.5A CN109560589B (en) | 2019-01-03 | 2019-01-03 | Iron tower computer lab stand-by battery power supply system that makes good use of |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101247053A (en) * | 2008-01-22 | 2008-08-20 | 艾默生网络能源有限公司 | Battery-connected voltage-boosting and reducing converting circuit and device, DC back-up power device |
| CN104967309A (en) * | 2015-07-09 | 2015-10-07 | 哈尔滨工业大学 | Series-input voltage equalization control method of independent-output direct current converter |
| CN204967289U (en) * | 2015-09-01 | 2016-01-13 | 国网新疆电力公司经济技术研究院 | Electric current mutual inductance of wide current range work is got can power |
| CN206698005U (en) * | 2017-04-25 | 2017-12-01 | 深圳市中旭源科技有限公司 | Dual input double startup exports voltage regulation type uninterrupted switch power supply |
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2019
- 2019-01-03 CN CN201910004860.5A patent/CN109560589B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101247053A (en) * | 2008-01-22 | 2008-08-20 | 艾默生网络能源有限公司 | Battery-connected voltage-boosting and reducing converting circuit and device, DC back-up power device |
| CN104967309A (en) * | 2015-07-09 | 2015-10-07 | 哈尔滨工业大学 | Series-input voltage equalization control method of independent-output direct current converter |
| CN204967289U (en) * | 2015-09-01 | 2016-01-13 | 国网新疆电力公司经济技术研究院 | Electric current mutual inductance of wide current range work is got can power |
| CN206698005U (en) * | 2017-04-25 | 2017-12-01 | 深圳市中旭源科技有限公司 | Dual input double startup exports voltage regulation type uninterrupted switch power supply |
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