An emergency energy-saving circuit with dry batteries, lithium batteries and commercial power hybrid switching

Abstract

The utility model relates to an emergency energy -saving circuit of dry battery, lithium battery, commercial power hybrid switching, including power supply module, LED light source module, lithium battery drive module, dry battery drive module, detection module, voltage stabilizing module, LED light source module includes constant -current drive chip, electrolytic capacitor seven, electrolytic capacitor eight, inductance one, inductance five, LED light source, diode one, MOS pipe eighteen, lithium battery drive module includes solar panel connection terminal, MOS pipe eight, MOS pipe nine, MOS pipe ten, MOS pipe eleven, MOS pipe twelve, lithium battery, dry battery drive module includes MOS pipe thirteen, MOS pipe fourteen, MOS pipe fifteen, MOS pipe sixteen, MOS pipe seventeen. The utility model discloses scientific and reasonable structure design can switch low -voltage battery to supply power when commercial power supply power outage suddenly, can charge lithium battery through solar panel simultaneously, can use lithium battery power supply when the electricity is expensive, and energy -conserving environmental protection.

Description

Technical Field

[0001] This utility model belongs to the field of lighting circuits, specifically relating to an emergency energy-saving circuit that uses a hybrid switching between dry cell batteries, lithium batteries, and mains power. Background Technology

[0002] Currently, most desk lamps on the market have overly limited functionality. With the development of the times and the improvement of people's living standards, a single-function desk lamp can no longer meet the needs. The fundamental reason for this lies in the limitations of their control circuit design. There is currently a lack of lighting circuits on the market that can operate under multiple power supply methods and switch power supply according to actual conditions to cope with different working environments. Utility Model Content

[0003] The purpose of this utility model is to overcome the shortcomings of the existing technology and provide an emergency energy-saving circuit that can be used for switching between dry cell batteries, lithium batteries and mains power for table lamps.

[0004] The technical solution adopted by this utility model to solve its technical problem is: An emergency energy-saving circuit that uses a hybrid switching mechanism between dry cell batteries, lithium batteries, and AC mains power includes a power supply module, an LED light source module, a lithium battery drive module, a dry cell battery drive module, a detection module, and a voltage regulator module. The power supply module is characterized by comprising a power converter, resistors 5, 8, 9, 14, and 17, and MOSFETs 1, 2, 3, 4, 5, 6, and 7. The power converter's pin 1, one end of resistor 5, the drains of MOSFETs 2, 3, and 5 output a working voltage of DC_5V. The other end of resistor 5 and one end of resistor 8 are connected to the network label DC5V_CK. The gates of transistors 1, 2, 3, 4, 5, 6, and 7 are connected to one end of resistor 17. The sources of transistors 1, 2, 3, 4, 5, and 6 are connected to the other end of resistor 17. One end of resistor 9 and one end of resistor 14 are connected to the gate of transistor 7. The other end of resistor 9 is connected to network label DC5V_EN. The other end of resistor 14 and the source of transistor 7 are grounded. The other end of resistor 8 is grounded. Pin 2 of the power converter is grounded. The drains of transistors 1, 4, and 6 are connected to network label Vin.The LED light source module consists of a constant current driver chip, capacitors 17, 23, 24, 26, 27, and 28, electrolytic capacitors 7 and 8, inductors 1 and 5, an LED light source, diode 1, MOSFET 18, resistors 86, 87, 2, 66, 65, and 10, and sampling resistors 1 and 2. Pin 1 of the constant current driver chip is connected to one end of capacitor 24; one end of resistors 86 and 87 is connected to pin 3 of the constant current driver chip; pin 4 is connected to one end of capacitor 22; pin 5 is connected to one end of capacitor 26; one end of resistors 65 and 66 is connected to pin 6 of the constant current driver chip; and pin 7 is connected to resistor 66. Pin 11, sampling resistor 2's one end, MOSFET 18's drain connected to pin 8 of the constant current driver chip, constant current driver chip pin 9, capacitor 2's one end, inductor 1's one end, capacitor 17's one end, electrolytic capacitor 8's positive terminal connected to network label Vin, constant current driver chip pin 10 connected to resistor 2's one end, resistor 2's other end connected to MOSFET 18's gate, MOSFET 18's source, inductor 1's other end connected to diode 1's positive terminal, diode 1's negative terminal, resistor 6's other end, capacitor 2's other end, electrolytic capacitor 7's positive terminal connected to inductor 2's pin 1, resistor 10 ..., sampling resistor 1's one end connected to inductor 2's pin 3, inductor 2's pin 2 connected to LED light source's positive terminal, LED light source's negative terminal connected to inductor 2's pin 4, electrolytic capacitor 8's negative terminal, capacitor 17's other end connected to inductor 2's pin 4, electrolytic capacitor 8's negative terminal, capacitor 17's other end connected to inductor 2's pin 3, inductor 2's pin 2 connected to LED light source's positive terminal, LED light source's negative terminal connected to inductor 2's pin 4, electrolytic capacitor 8's negative terminal, capacitor 17's other end connected to inductor 2's pin 3, electrolytic capacitor 2's other end connected to LED light source's positive terminal, electrolytic The following components are connected to the solar panel connection terminal, diode 2, MOSFETs 8 and 7, resistors 8 and 7, capacitors 2 and 3, capacitors 2 and 6, sampling resistor 2, resistor 6 and 5, capacitor 2 and 7, the negative terminal of electrolytic capacitor 7, and sampling resistor 1 (one terminal grounded). The other terminal of capacitor 2 and 8 is also grounded. The other terminal of resistor 8 and 6 is connected to the network label PWM. The lithium battery drive module consists of a solar panel connection terminal, diode 2, MOSFETs 8, 9, 10, 11, and 12, resistors 16, 27, 18, 19, 21, and a lithium battery. Pin 2 of the solar panel connection terminal is connected to the positive terminal of diode 2, the negative terminal of diode 2, one terminal of resistor 16, the drain of MOSFET 9, and the drain of MOSFET 11. The positive terminal of the lithium battery is connected to network label BAT. The drain terminals of MOSFET 8 and MOSFET 10 are connected to network label Vin. The gate terminals of MOSFET 9, MOSFET 8, MOSFET 11, MOSFET 10, and MOSFET 12 are connected to one end of resistor 27. The source terminals of MOSFET 8, MOSFET 9, MOSFET 10, and MOSFET 11 are connected to the other end of resistor 27. One end of resistor 19 and one end of resistor 21 are connected to the gate terminal of MOSFET 12. The other end of resistor 19 is connected to network label BAT_EN. The other end of resistor 21 and the source terminal of MOSFET 12 are grounded. The other end of resistor 16 and one end of resistor 18 are connected to network label BAT_CK. The other end of resistor 18 is grounded to the negative terminal of the lithium battery.The dry cell battery drive module consists of MOSFETs 13, 14, 15, 16, and 17, and resistors 38, 39, and 40. The drains of MOSFETs 14 and 16 are connected to the network labeled Dry_BAT; the drains of MOSFETs 13 and 15 are connected to the network labeled Vin; the gates of MOSFETs 14, 15, 16, 13, and 17 are connected to one end of resistor 40; the sources of MOSFETs 14, 15, 16, and 13 are connected to the other end of resistor 40; one end of resistors 38 and 39 is connected to the gate of MOSFET 17; the other end of resistor 38 is connected to the network labeled Dry_BAT_EN; and the other end of resistor 39 and the source of MOSFET 17 are grounded. The detection module consists of a microcontroller, with pin 1 connected to a 2V / 8 operating voltage, and pin 5 connected to... The microcontroller is connected to the following network labels: Dry_BAT_EN, PWM (pin 6), BAT_EN (pin 7), BAT_CK (pin 8), DC5V_CK (pin 10), DC5V_EN (pin 11), and ground (pin 14). The voltage regulator module consists of a voltage regulator chip, capacitors 1, 2, 3, and 4, diodes 3, 5, and 6. Diode 3's anode is connected to the operating voltage DC_5V, diode 5's anode is connected to network label BAT, and diode 6's anode is connected to network label Dry_BAT. The voltage regulator chip's pin 1, one end of capacitors 1, 2, 3, and 4, and one end of capacitor 4 are grounded. Diodes 3's cathode, 5's cathode, 6's cathode, the other end of capacitors 1 and 2 are connected to pin 2 of the voltage regulator chip. The voltage regulator chip's pin 3, the other end of capacitors 3 and 4, output the operating voltage 2V8.

[0005] The constant current driver chip is model Hi6000B.

[0006] Compared with the prior art, this utility model has the following advantages and effects: With a scientific and reasonable structural design, it can switch to low-voltage batteries for power supply when the mains power supply suddenly fails; at the same time, the lithium battery can be charged through solar panels during the day and used to drive lighting at night. It can also be powered by lithium batteries when electricity prices are high, making it energy-saving and environmentally friendly. Attached Figure Description

[0007] Figure 1 The circuit diagram of the power supply module is shown in the example.

[0008] Figure 2 The circuit diagram of the LED light source module is shown in the example.

[0009] Figure 3The circuit diagram of the lithium battery drive module is shown in the example.

[0010] Figure 4 The circuit of the dry cell battery driving module is shown in the example.

[0011] Figure 5 The circuit of the detection module is shown in the example.

[0012] Figure 6 The circuit of the voltage regulator module is shown in the example.

[0013] The accompanying drawings, which are provided to further illustrate this application and form part of this application, illustrate exemplary embodiments of this application and are used to explain this application, but do not constitute an undue limitation of this application. Detailed Implementation

[0014] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0015] Example

[0016] like Figures 1-6 As shown, the intelligent circuit includes a power supply module, an LED light source module, a lithium battery driver module, a dry cell battery driver module, a detection module, and a voltage regulator module. The power supply module consists of a power converter P1, resistors R5, R8, R9, R14, R17, MOSFETs Q1, Q2, Q3, Q4, Q5, Q6, and Q7. The power converter P1... Pin 1, one end of resistor 5, drain of MOSFET 2 (Q2), drain of MOSFET 3 (Q3), drain of MOSFET 5 (Q5), output working voltage DC_5V. The other end of resistor 5, one end of resistor 8, is connected to network label DC5V_CK. The gates of MOSFETs 1 (Q1), 2 (Q2), 3 (Q3), 4 (Q4), 5 (Q5), 6 (Q6), and drain of MOSFET 7 (Q7) are connected to one end of resistor 17, R17. The sources of MOSFETs 1 (Q1), 2 (Q2), 3 (Q3), 4 (Q4), 5 (Q5), and 6 (Q6) are connected to the other end of resistor 17, R17. One end of resistor 9, one end of resistor 14, R14, is connected to the gate of MOSFET 7 (Q7). The other end of resistor 9, R9, is connected to network label DC5V_EN. The other end of resistor 14, R14, the source of MOSFET 7 (Q7), is grounded. The other end of resistor 8, R8, is grounded. Power converter P1 Pin 2 is grounded. The drains of MOSFET Q1, Q4, and Q6 are connected to the network label Vin.

[0017] like Figure 2 As shown, the LED light source module consists of a constant current driver chip U6, capacitors C17, C23, C24, C26, C27, C28, E7, E8, L1, L5, LED, diode D1, Q18, resistors R86, R87, R22, R66, R65, R10, sampling resistor RC1, and sampling resistor RC22. Pin 1 of the constant current driver chip U6 is connected to one end of capacitor C24; one end of resistor R86 and one end of resistor R87 are connected to pin 3 of the constant current driver chip U6; and pin 4 of the constant current driver chip U6 is connected to one end of capacitor C22. Pin 5 is connected to one end of capacitor C26 (26), one end of resistor R65 (65), and one end of resistor R66 (66) are connected to pin 6 of constant current driver chip U6. Pin 7 of constant current driver chip U6 is connected to one end of resistor R10, one end of sampling resistor RC22, and the drain of MOSFET Q18 is connected to pin 8 of constant current driver chip U6. Pin 9 of constant current driver chip U6, one end of capacitor C28 (28), one end of inductor L1, one end of capacitor C17 (17), and the positive terminal of electrolytic capacitor E8 are connected to network label Vin. Constant current driver chip U6 Pin 10 is connected to the end of resistor R21. The other end of resistor R21 is connected to the gate of MOSFET Q18. The source of MOSFET Q18 is connected to the other end of inductor L1. The anode of diode D1 is connected to the cathode of diode D1. The other end of resistor R66, the other end of capacitor C27, and the anode of electrolytic capacitor E7 are connected to pin 1 of inductor 2. The other end of resistor R10 and one end of sampling resistor RC1 are connected to pin 3 of inductor 2. Pin 2 of inductor 2 is connected to the anode of LED light source LE. The negative terminal of D is connected to pin 4 of inductor 2, the negative terminal of electrolytic capacitor 8E8, the other end of capacitor 17C17, the other end of capacitor 24C24, the other end of resistor 87R87, the other end of capacitor 23C23, the other end of capacitor 26C26, the other end of sampling resistor 2RC22, the other end of resistor 65R65, the other end of capacitor 27C27, the negative terminal of electrolytic capacitor 7E7, the other end of sampling resistor 1RC1 is grounded, the other end of capacitor 28C28 is grounded, and the other end of resistor 86R86 is connected to the network label PWM. The constant current driver chip U6 is model Hi6000B.

[0018] like Figure 3As shown, the lithium battery BATT1 drive module consists of a solar panel connection terminal P2, diode D2, MOSFETs Q8, Q9, Q10, Q11, Q12, resistors Q16, Q27, R18, R19, R21, and the lithium battery BATT1. Pin 2 of the solar panel connection terminal P2 is connected to the positive terminal of diode D2. The negative terminal of diode D2, one end of resistor Q16, the drains of MOSFETs Q9 and Q11, and the positive terminal of the lithium battery BATT1 are connected to network label BAT. The drains of MOSFETs Q8 and Q10 are connected to network label Vin. The gates of MOSFETs Q9, Q8, Q11, Q10, and Q12 are connected to one end of resistor Q27. The source of MOSFET Q8, M... The sources of MOSFETs Q9, Q10, and Q11 are connected to the other end of resistor Q27. One end of resistor R19 and one end of resistor R21 are connected to the gate of MOSFET Q12. The other end of resistor R19 is connected to network label BAT_EN. The other end of resistor R21 and the source of MOSFET Q12 are grounded. The other end of resistor Q16 and one end of resistor R18 are connected to network label BAT_CK. The other end of resistor R18 and the negative terminal of lithium battery BATT1 are grounded. like Figure 4 As shown, the dry cell battery drive module consists of MOSFETs Q13 (13), Q14 (14), Q15 (15), Q16 (16), and Q17 (17), resistors R38 (38), R39 (39), and R40 (40). The drains of MOSFETs Q14 and Q16 are connected to network labeled Dry_BAT, the drains of MOSFETs Q13 and Q15 are connected to network labeled Vin, and the gates of MOSFETs Q14 and Q15 are connected to network labeled... The gate of MOSFET Q16, the gate of MOSFET Q13, and the drain of MOSFET Q17 are connected to one end of resistor R40. The source of MOSFET Q14, the source of MOSFET Q15, the source of MOSFET Q16, and the source of MOSFET Q13 are connected to the other end of resistor R40. One end of resistor R38 and one end of resistor R39 are connected to the gate of MOSFET Q17. The other end of resistor R38 is connected to the network label Dry_BAT_EN. The other end of resistor R39 and the source of MOSFET Q17 are grounded.

[0019] like Figure 5As shown, the detection module consists of a microcontroller U1. Pin 1 of microcontroller U1 is connected to the operating voltage of 2V8, pin 5 is connected to the network label Dry_BAT_EN, pin 6 is connected to the network label PWM, pin 7 is connected to the network label BAT_EN, pin 8 is connected to the network label BAT_CK, pin 10 is connected to the network label DC5V_CK, pin 11 is connected to the network label DC5V_EN, and pin 14 is grounded.

[0020] like Figure 6 As shown, the voltage regulator module consists of a voltage regulator chip U4, capacitors C1, C2, C3, C4, diodes D3, D5, and D6. The anode of diode D3 is connected to the operating voltage DC_5V, the anode of diode D5 is connected to network label BAT, and the anode of diode D6 is connected to network label Dry_BAT. Pin 1 of voltage regulator chip U4, one end of capacitors C1, C2, C3, and C4 are grounded. The cathodes of diodes D3, D5, and D6, the other end of capacitors C1 and C2, are connected to pin 2 of voltage regulator chip U4. Pin 3 of voltage regulator chip U4, the other end of capacitors C3 and C4, and the other end of capacitor C4 output an operating voltage of 2V8.

[0021] This embodiment provides a working mode for this emergency energy-saving circuit: The power converter P1 receives AC108V-132 and outputs DC5V / 2.5A constant voltage. It uses a BATT 13.7V / 2000mAh lithium battery (which can be charged via a solar panel) or a 3V / 12000mAh dry cell battery. The voltage regulator chip U4 is powered by diodes D3, D5, and D6 to provide a working voltage of 2V8. This voltage is then used to power the microcontroller U1 to detect various voltages. The voltage detection determines the power supply method and outputs a PWM signal (network label PWM) to the constant current driver to output the corresponding current.

[0022] The above power supply methods include three corresponding cases, as detailed below: When the voltage of network label Vin is 5V, the constant voltage is boosted by the constant current driver to output a constant voltage of 9V for LED power supply. At this time, the microcontroller U1 outputs PWM=100%, and the LED current is 1A. When the voltage of network label DC5V-CK is greater than that of network label BAT-CK, the voltage of network label DC5V-EN is 2.8V, MOSFET 7 Q7 is turned on, and then MOSFETs 1 Q1, MOSFET 2 Q2, MOSFET 3 Q3, MOSFET 4 Q4, MOSFET 5 Q5, and MOSFET 6 Q6 are turned on.

[0023] When the voltage of network label Vin is the same as the voltage of network label BAT, a constant voltage of 9V is output through the constant current driver core to power the LED light source. At this time, the microcontroller U1 outputs PWM=50%, and the LED light source current is 0.5A. When the voltage of network label DC5V-CK is equal to 0V and the voltage of network label BAT-CK is greater than 1.6V, the voltage of network label BAT-EN is 2.8V, MOSFET twelve Q12 is turned on, and then MOSFET eight Q8, MOSFET nine Q9, MOSFET ten Q10, and MOSFET eleven Q11 are turned on.

[0024] When the voltage of network label Vin is the same as the voltage of network label Dry_BAT, a constant voltage of 9V is output through the constant current driver core to power the LED light source. At this time, the microcontroller U1 outputs PWM=25%, and the LED light source current is 0.25A. When the voltage of network label DC5V-CK is equal to 0V and the voltage of network label BAT-CK is less than 1.5V, the voltage of network label BAT-EN is 2.8V, MOSFET 17 Q17 is turned on, and then MOSFETs 13 Q13, 14 Q14, 15 Q15, and 16 Q16 are turned on.

[0025] The above description in this specification is merely illustrative of the present invention. Those skilled in the art to which this invention pertains may make various modifications or additions to the described specific embodiments or use similar methods to replace them, as long as they do not depart from the content of this specification or exceed the scope defined in the claims, all of which shall fall within the protection scope of this invention.

Claims

1. An emergency energy-saving circuit that uses a hybrid switching mechanism of dry cell battery, lithium battery, and mains power, comprising a power supply module, an LED light source module, a lithium battery drive module, a dry cell battery drive module, a detection module, and a voltage regulator module, characterized in that: The power supply module consists of a power converter, resistors 5, 8, 9, 14, and 17, and MOSFETs 1, 2, 3, 4, 5, 6, and 7. The power converter outputs a working voltage of DC_5V via pin 1, one end of resistor 5, the drains of MOSFETs 2, 3, and 5. The other end of resistor 5 and one end of resistor 8 are connected to the network label DC5V_CK. The gates of MOSFETs 1, 2, 3, 4, and 5 are also connected. The gate of MOSFET 6 and the drain of MOSFET 7 are connected to one end of resistor 17. The source of MOSFET 1, the source of MOSFET 2, the source of MOSFET 3, the source of MOSFET 4, the source of MOSFET 5, and the source of MOSFET 6 are connected to the other end of resistor 17. One end of resistor 9 and one end of resistor 14 are connected to the gate of MOSFET 7. The other end of resistor 9 is connected to network label DC5V_EN. The other end of resistor 14 and the source of MOSFET 7 are grounded. The other end of resistor 8 is grounded. Pin 2 of the power converter is grounded. The drain of MOSFET 1, the drain of MOSFET 4, and the drain of MOSFET 6 are connected to network label Vin. The LED light source module consists of a constant current driver chip, capacitors 17, 23, 24, 26, 27, and 28, electrolytic capacitors 7 and 8, inductors 1 and 5, an LED light source, diode 1, MOSFET 18, resistors 86, 87, 2, 66, 65, 10, sampling resistor 1, and sampling resistor 2. Pin 1 of the constant current driver chip is connected to one end of capacitor 24; one end of resistors 86 and 87 is connected to pin 3 of the constant current driver chip; pin 4 is connected to one end of capacitor 22; pin 5 is connected to one end of capacitor 26; one end of resistors 65 and 66 is connected to pin 6 of the constant current driver chip; pin 7 is connected to one end of resistor 11; one end of sampling resistor 2; the drain of MOSFET 18 is connected to pin 8 of the constant current driver chip; pin 9 of the constant current driver chip; one end of capacitor 28; and one end of inductor 1. One end of capacitor 17 and the positive terminal of electrolytic capacitor 8 are connected to the network label Vin. Pin 10 of the constant current drive chip is connected to one end of resistor 2. The other end of resistor 2 is connected to the gate of MOSFET 18. The source of MOSFET 18 is connected to the other end of inductor 1. The positive terminal of diode 1 is connected to the negative terminal of diode 1. The other end of resistor 66, the other end of capacitor 27, and the positive terminal of electrolytic capacitor 7 are connected to pin 1 of inductor 2. The other end of resistor 10 and one end of sampling resistor 1 are connected to pin 3 of inductor 2. Pin 2 of inductor 2 is connected to the positive terminal of LED light source. The negative terminal of LED light source is connected to pin 4 of inductor 2. The negative terminal of electrolytic capacitor 8, the other end of capacitor 17, the other end of capacitor 24, the other end of resistor 87, the other end of capacitor 23, the other end of capacitor 26, the other end of sampling resistor 2, the other end of resistor 65, the other end of capacitor 27, the negative terminal of electrolytic capacitor 7, the other end of sampling resistor 1 is grounded, the other end of capacitor 28 is grounded, and the other end of resistor 86 is connected to the network label PWM. The lithium battery drive module consists of a solar panel connection terminal, diode 2, MOSFETs 8, 9, 10, 11, and 12, resistors 16, 27, 18, 19, and 21, and a lithium battery. Pin 2 of the solar panel connection terminal is connected to the positive terminal of diode 2, the negative terminal of diode 2, one end of resistor 16, the drain of MOSFETs 9 and 11, and the positive terminal of the lithium battery (network labeled BAT). The drains of MOSFETs 8 and 10 are connected to the network labeled Vin. The gate of MOSFET 9 and the MOSFET... The gates of transistors 8, 11, 10, and 12 are connected to one end of resistor 27. The sources of transistors 8, 9, 10, and 11 are connected to the other end of resistor 27. One end of resistor 19 and one end of resistor 21 are connected to the gate of transistor 12. The other end of resistor 19 is connected to network label BAT_EN. The other end of resistor 21 and the source of transistor 12 are grounded. The other end of resistor 16 and one end of resistor 18 are connected to network label BAT_CK. The other end of resistor 18 is grounded to the negative terminal of the lithium battery. The dry cell battery drive module consists of MOSFETs 13, 14, 15, 16, and 17, resistors 38, 39, and 40. The drains of MOSFETs 14 and 16 are connected to network label Dry_BAT, the drains of MOSFETs 13 and 15 are connected to network label Vin, the gates of MOSFETs 14, 15, 16, 13, and 17 are connected to one end of resistor 41, the source of MOSFETs 14, 15, 16, and 13 is connected to the other end of resistor 40, one end of resistor 38 and one end of resistor 39 are connected to the gate of MOSFET 17, the other end of resistor 38 is connected to network label Dry_BAT_EN, and the other end of resistor 39 and the source of MOSFET 17 are grounded. The detection module consists of a microcontroller. Pin 1 of the microcontroller is connected to the working voltage of 2V8. Pin 5 of the microcontroller is connected to the network label Dry_BAT_EN. Pin 6 of the microcontroller is connected to the network label PWM. Pin 7 of the microcontroller is connected to the network label BAT_EN. Pin 8 of the microcontroller is connected to the network label BAT_CK. Pin 10 of the microcontroller is connected to the network label DC5V_CK. Pin 11 of the microcontroller is connected to the network label DC5V_EN. Pin 14 of the microcontroller is grounded. The voltage regulator module consists of a voltage regulator chip, capacitor 1, capacitor 2, capacitor 3, capacitor 4, diode 3, diode 5, and diode 6. The positive terminal of diode 3 is connected to the working voltage DC_5V, the positive terminal of diode 5 is connected to network label BAT, and the positive terminal of diode 6 is connected to network label Dry_BAT. Pin 1 of the voltage regulator chip, one end of capacitor 1, one end of capacitor 2, one end of capacitor 3, and one end of capacitor 4 are grounded. The negative terminals of diodes 3, 5, and 6, the other end of capacitor 1, and the other end of capacitor 2 are connected to pin 2 of the voltage regulator chip. Pin 3 of the voltage regulator chip, the other end of capacitor 3, and the other end of capacitor 4 output a working voltage of 2V8.

2. The emergency energy-saving circuit using dry cell batteries, lithium batteries, and mains power hybrid switching as described in claim 1, characterized in that: The constant current driver chip is model Hi6000B.

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