Boost conversion circuit

Abstract

The boost conversion circuit comprises a switch, a first diode, a first inductor, a first capacitor, a first energy storage module and a second energy storage module. The first end and the second end of the switch are respectively connected with the positive electrode of the voltage source and the first node. The first node is connected with the anode of the load. The cathode and the anode of the first diode are respectively connected with the first node and the second node. The second node is connected with the cathode of the voltage source. The first end and the second end of the first inductor are respectively connected with the second node and the third node. The first end and the second end of the first capacitor are respectively connected with the first node and the third node. The first end and the second end of the first energy storage module are respectively connected with the third node and the fourth node. The fourth node is connected with the cathode of the load. The first end and the second end of the second energy storage module are connected with the third node and the fourth node respectively.

Description

Technical Field

[0001] The invention relates to a circuit design, in particular to a circuit design of a boost conversion circuit. Background Art

[0002] Buck converter is a common circuit that has been widely used in various electronic products or lighting devices. Therefore, it has a wide range of applications and is very flexible in use.

[0003] However, since the current of the high-frequency electronic ballast is a fixed value, the power difference between the LED lighting device using the buck converter in the mains mode and the electronic ballast mode is large, which leads to a large luminous flux difference. Due to the limitation of the circuit design of the existing converter, the above problem cannot be effectively solved. Summary of the invention

[0004] According to one embodiment of the present invention, a boost converter circuit is provided, which includes a switch, a first diode, a first inductor, a first capacitor, a first energy storage module and a second energy storage module. The first end and the second end of the switch are respectively connected to the positive electrode and the first node of the voltage source. The first node is connected to the positive electrode of the load. The negative electrode and the positive electrode of the first diode are respectively connected to the first node and the second node. The second node is connected to the negative electrode of the voltage source. The first end and the second end of the first inductor are respectively connected to the second node and the third node. The first end and the second end of the first capacitor are respectively connected to the first node and the third node. The first end and the second end of the first energy storage module are respectively connected to the third node and the fourth node. The fourth node is connected to the negative electrode of the load. The first end and the second end of the second energy storage module are respectively connected to the third node and the fourth node.

[0005] In one embodiment, the boost conversion circuit further includes a rectifier module. The second end of the second energy storage module is connected to the fourth node through the rectifier module.

[0006] In one embodiment, the rectifier module is a second diode, an anode of the second diode is connected to the fourth node, and a cathode of the second diode is connected to the second end of the second energy storage module.

[0007] In one embodiment, when the switch is turned on and then turned off, the first energy storage module, the second energy storage module and the rectifier module form a loop.

[0008] In one embodiment, the first energy storage module is a second capacitor.

[0009] In one embodiment, the second energy storage module is a second inductor.

[0010] In one embodiment, when the switch is turned on, the voltage source charges the first inductor, the first capacitor and the second energy storage module.

[0011] In one embodiment, when the switch is turned off, the second energy storage module charges the first energy storage module.

[0012] In one embodiment, when the switch is turned off, the first capacitor and the first energy storage module drive the load simultaneously.

[0013] In one embodiment, the load includes a plurality of light emitting diodes.

[0014] As described above, the boost converter circuit according to the embodiment of the present invention may have one or more of the following advantages:

[0015] (1) In one embodiment of the present invention, a boost converter circuit includes a switch, a first diode, a first inductor, a first capacitor, a first energy storage module, and a second energy storage module. The first end and the second end of the switch are connected to the positive electrode and the first node of the voltage source, respectively. The first node is connected to the positive electrode of the load. The negative electrode and the positive electrode of the first diode are connected to the first node and the second node, respectively. The second node is connected to the negative electrode of the voltage source. The first end and the second end of the first inductor are connected to the second node and the third node, respectively. The first end and the second end of the first capacitor are connected to the first node and the third node, respectively. The first end and the second end of the first energy storage module are connected to the third node and the fourth node, respectively. The fourth node is connected to the negative electrode of the load. The first end and the second end of the second energy storage module are connected to the third node and the fourth node, respectively. When the switch is turned on, the voltage source charges the first inductor, the first capacitor, and the second energy storage module. When the switch is turned off, the second energy storage module charges the first energy storage module, and the first capacitor and the first energy storage module drive the load simultaneously. Through the above circuit operation mechanism, the first capacitor and the first energy storage module can drive a load that requires a high driving voltage, so that the load can achieve a higher power. Therefore, the boost converter circuit has a wider application range and can meet the needs of practical applications.

[0016] (2) In one embodiment of the present invention, the boost converter circuit can drive the load with a driving voltage close to the voltage (effective value) of the mains. Therefore, the luminous flux of the load in the electronic ballast mode can be close to or higher than the luminous flux of the load in the mains mode. Therefore, the boost converter circuit can achieve high efficiency and meet the requirements of practical applications.

[0017] (3) In one embodiment of the present invention, the boost converter circuit can drive the load with a driving voltage close to the voltage (effective value) of the mains. Therefore, the luminous flux of the load in the electronic ballast mode can be close to or higher than the luminous flux of the load in the mains mode. Therefore, the user can replace more existing light-emitting diode lighting devices with a smaller number of light-emitting diode lighting devices (using this boost converter circuit). Therefore, the use of the boost converter circuit can be more flexible.

[0018] (4) In one embodiment of the present invention, the boost converter circuit further includes a rectifier module. The second end of the second energy storage module is connected to the fourth node via the rectifier module. The rectifier module can limit the current direction to ensure that the charging circuit for the second energy storage module to charge the first energy storage module operates normally. Therefore, the above circuit design can make the operation stability of the boost converter circuit so that it can achieve the desired effect.

[0019] (5) In one embodiment of the present invention, the boost converter circuit is simple in design, so the desired effect can be achieved without significantly increasing the cost. Therefore, the boost converter circuit can achieve higher practicality and meet the needs of different applications. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 FIG. 4 is a circuit diagram of a boost converter circuit according to a first embodiment of the present invention.

[0021] Figure 2 FIG. 4 is a circuit diagram of a boost converter circuit according to a second embodiment of the present invention.

[0022] Figure 3 FIG. 4 is a circuit diagram of a boost converter circuit according to a third embodiment of the present invention.

[0023] Figure 4 It is a first schematic diagram of the operation status of the boost converter circuit according to the third embodiment of the present invention.

[0024] Figure 5 It is a second schematic diagram of the operation status of the boost converter circuit according to the third embodiment of the present invention.

[0025] Description of reference numerals:

[0026] 1-boost conversion circuit; SW-switch; D1-first diode; L1-first inductor; C1-first capacitor; C2-first energy storage module; L2-second energy storage module; D2-rectifier module; LD-load; SD-light emitting diode; N1-first node; N2-second node; N3-third node; N4-fourth node; A1, A2, A3-arrows.

[0027] The detailed features and advantages of the present invention are described in detail in the following embodiments, and the contents are sufficient to enable anyone skilled in the relevant art to understand the technical content of the present invention and implement it accordingly. Moreover, according to the contents, claims and drawings disclosed in this specification, any person skilled in the relevant art can easily understand the purposes and advantages of the present creation. DETAILED DESCRIPTION

[0028] The following will refer to the relevant drawings to illustrate the embodiments of the boost converter circuit according to the present invention. For the sake of clarity and convenience of the drawings, the components in the drawings may be exaggerated or reduced in size and proportion. In the following description and / or claims, when it is mentioned that a component is "connected" or "coupled" to another component, it may be directly connected or coupled to the other component or there may be an intervening component; and when it is mentioned that a component is "directly connected" or "directly coupled" to another component, there is no intervening component, and other words used to describe the relationship between components or layers should be interpreted in the same way. For ease of understanding, the same components in the following embodiments are illustrated with the same symbols.

[0029] See also Figure 1 , which is a circuit diagram of a boost converter circuit according to a first embodiment of the present invention. As shown in the figure, the boost converter circuit 1 includes a switch SW, a first diode D1, a first inductor L1, a first capacitor C1, a first energy storage module C2 and a second energy storage module L2.

[0030] The first end and the second end of the switch SW are connected to the positive electrode of the voltage source PS and the first node N1, respectively. In the present embodiment, the switch SW may be a metal oxide semi-conductor field effect transistor (MOSFET). In another embodiment, the switch SW may be a bipolar junction transistor (BJT) or other similar components. The first node N1 is connected to the positive electrode of the load LD. In the present embodiment, the load LD may include a plurality of light emitting diodes SD connected in series. In one embodiment, the load LD may also be formed based on a serial circuit and / or a parallel circuit.

[0031] The cathode of the first diode D1 is connected to the first node N1, and the anode of the first diode D1 is connected to the second node N2. The second node N2 is connected to the cathode of the voltage source PS. The voltage source PS can be a DC voltage source, such as a primary battery, a rechargeable battery, a switching power supply, an adapter, etc.

[0032] A first end of the first inductor L1 is connected to the second node N2 , and a second end of the first inductor L1 is connected to the third node N3 .

[0033] A first end of the first capacitor C1 is connected to the first node N1 , and a second end of the first capacitor C1 is connected to the third node N3 .

[0034] The first end of the first energy storage module C2 is connected to the third node N3, and the second end of the first energy storage module C2 is connected to the fourth node N4. The fourth node N4 is connected to the negative electrode of the load LD. In one embodiment, the first energy storage module C2 can be a capacitor. In another embodiment, the first energy storage module C2 can also be other components with energy storage function.

[0035] The first end of the second energy storage module L2 is connected to the third node N3, and the second end of the second energy storage module L2 is connected to the fourth node N4. In one embodiment, the second energy storage module L2 may be an inductor. In another embodiment, the second energy storage module L2 may also be other components with energy storage function.

[0036] When the switch SW is turned on, the voltage source PS charges the first inductor L1, the first capacitor C1 and the second energy storage module L2. When the switch SW is turned off, the second energy storage module L2 charges the first energy storage module C2. Then, the first capacitor C1 and the first energy storage module C2 can drive the load LD at the same time.

[0037] Through the above circuit operation mechanism, the first capacitor C1 and the first energy storage module C2 can drive the load LD that requires a high driving voltage, so that the load LD can achieve a higher power. Therefore, the boost converter circuit 1 is more widely used and can meet the needs of practical applications.

[0038] Of course, this embodiment is only used for illustration and does not limit the scope of the present invention. Equivalent modifications or changes made according to the boost converter circuit of this embodiment should still be included in the patent scope of the present invention.

[0039] See also Figure 2 , which is a circuit diagram of a boost converter circuit of a second embodiment of the present invention. As shown in the figure, the boost converter circuit 1 includes a switch SW, a first diode D1, a first inductor L1, a first capacitor C1, a first energy storage module C2 and a second energy storage module L2. Different from the previous embodiment, the boost converter circuit 1 of this embodiment also includes a rectifier module D2. In one embodiment, the rectifier module D2 can be a diode. In another embodiment, the rectifier module D2 can also be other various circuits with current limiting function.

[0040] A first terminal and a second terminal of the switch SW are connected to the positive electrode of the voltage source PS and the first node N1 respectively.

[0041] The cathode of the first diode D1 is connected to the first node N1, and the anode of the first diode D1 is connected to the second node N2. The second node N2 is connected to the cathode of the voltage source PS.

[0042] A first end of the first inductor L1 is connected to the second node N2 , and a second end of the first inductor L1 is connected to the third node N3 .

[0043] A first end of the first capacitor C1 is connected to the first node N1 , and a second end of the first capacitor C1 is connected to the third node N3 .

[0044] The first end of the first energy storage module L2 is connected to the third node N3, and the second end of the first energy storage module C2 is connected to the fourth node N4. The fourth node N4 is connected to the negative electrode of the load LD.

[0045] A first end of the second energy storage module L2 is connected to the third node N3, and a second end of the second energy storage module L2 is connected to the fourth node N4 via the rectifier module D2.

[0046] When the switch SW is turned on, the voltage source PS charges the first inductor L1, the first capacitor C1 and the second energy storage module L2. When the switch SW is turned off, the first energy storage module C2, the second energy storage module L2 and the rectifier module D2 form a loop, so that the second energy storage module L2 charges the first energy storage module C2. The above-mentioned rectifier module D2 can limit the current direction to ensure that the charging loop for the second energy storage module L2 to charge the first energy storage module C2 operates normally. Then, the first capacitor C1 and the first energy storage module C2 can drive the load LD at the same time.

[0047] Through the above circuit operation mechanism, the first capacitor C1 and the first energy storage module C2 can drive the load LD that requires a high driving voltage, so that the load LD can achieve a higher power. Therefore, the boost converter circuit 1 is more widely used and can meet the needs of practical applications.

[0048] Of course, this embodiment is only used for illustration and does not limit the scope of the present invention. Equivalent modifications or changes made according to the boost converter circuit of this embodiment should still be included in the patent scope of the present invention.

[0049] It is worth mentioning that, since the current of the high-frequency electronic ballast is a fixed value, the power difference between the light-emitting diode SD lighting device using the buck converter in the mains mode and the electronic ballast mode is large, which leads to a very high luminous flux difference. Due to the limitation of the circuit design of the existing converter, the above-mentioned problem cannot be effectively solved. In contrast, according to an embodiment of the present invention, the boost conversion circuit includes a switch SW, a first diode D1, a first inductor L1, a first capacitor C1, a first energy storage module C2 and a second energy storage module L2. The first end and the second end of the switch SW are respectively connected to the positive electrode of the voltage source and the first node N1. The first node N1 is connected to the positive electrode of the load LD. The cathode and the anode of the first diode D1 are respectively connected to the first node N1 and the second node N2. The second node N2 is connected to the negative electrode of the voltage source. The first end and the second end of the first inductor L1 are respectively connected to the second node N2 and the third node N3. The first end and the second end of the first capacitor C1 are respectively connected to the first node N1 and the third node N3. The first end and the second end of the first energy storage module C2 are respectively connected to the third node N3 and the fourth node N4. The fourth node N4 is connected to the negative electrode of the load LD. The first end and the second end of the second energy storage module L2 are connected to the third node N3 and the fourth node N4, respectively. When the switch SW is turned on, the voltage source charges the first inductor L1, the first capacitor C1 and the second energy storage module L2. When the switch SW is turned off, the second energy storage module L2 charges the first energy storage module C2, and the first capacitor C1 and the first energy storage module C2 drive the load LD at the same time. Through the above-mentioned circuit operation mechanism, the first capacitor C1 and the first energy storage module C2 can drive the load LD that requires a high driving voltage, so that the load LD can achieve a higher power, thereby achieving the power consistency between the electronic ballast state and the mains state. Therefore, the boost converter circuit is more widely used and can meet the needs of practical applications.

[0050] Furthermore, according to an embodiment of the present invention, the boost converter circuit can drive the load LD with a driving voltage close to the voltage (effective value) of the mains. Therefore, the luminous flux of the load LD in the electronic ballast mode can be close to or higher than the luminous flux of the load LD in the mains mode. Therefore, the boost converter circuit can achieve high efficiency and meet the requirements of practical applications.

[0051] In addition, according to the embodiment of the present invention, the boost converter circuit can drive the load LD with a driving voltage close to the voltage (effective value) of the mains. Therefore, the luminous flux of the load LD in the electronic ballast mode can be close to or higher than the luminous flux of the load LD in the mains mode. Therefore, the user can replace more existing light-emitting diode SD lighting devices with a smaller number of light-emitting diode SD lighting devices (using this boost converter circuit). Therefore, the use of the boost converter circuit can be more flexible.

[0052] In addition, according to an embodiment of the present invention, the boost converter circuit 1 further includes a rectifier module D2. The second end of the second energy storage module L2 is connected to the fourth node N4 through the rectifier module D2. The rectifier module D2 can limit the current direction to ensure that the charging circuit of the second energy storage module L2 charging the first energy storage module C2 operates normally. Therefore, the above circuit design can make the operation stability of the boost converter circuit so that it can achieve the desired effect.

[0053] Furthermore, according to the embodiment of the present invention, the design of the boost converter circuit is simple, so the desired effect can be achieved without significantly increasing the cost. Therefore, the boost converter circuit can achieve higher practicality and meet the requirements of different applications. From the above, it can be seen that the boost converter circuit according to the embodiment of the present invention can indeed achieve excellent technical effects.

[0054] See also Figure 3 , which is a circuit diagram of a boost converter circuit of a third embodiment of the present invention. As shown in the figure, the boost converter circuit 1 includes a switch SW, a first diode D1, a first inductor L1, a first capacitor C1, a first energy storage module C2, a second energy storage module L2 and a rectifier module D2.

[0055] A first terminal and a second terminal of the switch SW are connected to the positive electrode of the voltage source PS and the first node N1 respectively.

[0056] The cathode of the first diode D1 is connected to the first node N1, and the anode of the first diode D1 is connected to the second node N2. The second node N2 is connected to the cathode of the voltage source PS.

[0057] A first end of the first inductor L1 is connected to the second node N2 , and a second end of the first inductor L1 is connected to the third node N3 .

[0058] A first end of the first capacitor C1 is connected to the first node N1 , and a second end of the first capacitor C1 is connected to the third node N3 .

[0059] The first end of the first energy storage module L2 is connected to the third node N3, and the second end of the first energy storage module C2 is connected to the fourth node N4. In this embodiment, the first energy storage module C2 is a second capacitor.

[0060] The fourth node N4 is connected to the cathode of the load LD.

[0061] The first end of the second energy storage module L2 is connected to the third node N3, and the second end of the second energy storage module L2 is connected to the fourth node N4 through the rectifier module D2. In this embodiment, the second energy storage module L2 is a second inductor. In this embodiment, the rectifier module D2 is a second diode.

[0062] Of course, this embodiment is only used for illustration and does not limit the scope of the present invention. Equivalent modifications or changes made according to the boost converter circuit of this embodiment should still be included in the patent scope of the present invention.

[0063] See also Figure 4 , which is a first schematic diagram of the operating state of the boost converter circuit of the third embodiment of the present invention. As shown in the figure, when the switch SW is turned on, the voltage source PS charges the first inductor L1, the first capacitor C1 and the second energy storage module L2, and the current direction is shown by the arrows A1 and A2 in the figure. At this time, although there is current passing through the load LD, this voltage is not enough to drive the load LD.

[0064] Of course, this embodiment is only used for illustration and does not limit the scope of the present invention. Equivalent modifications or changes made according to the boost converter circuit of this embodiment should still be included in the patent scope of the present invention.

[0065] See also Figure 5 , which is a second schematic diagram of the operating state of the boost converter circuit of the third embodiment of the present invention. As shown in the figure, when the switch SW is turned off, the first energy storage module C2, the second energy storage module L2 and the rectifier module D2 form a loop, so that the second energy storage module L2 charges the first energy storage module C2, and the current direction is shown by the arrow A3 in the figure; the first inductor L1 and the second energy storage module L2 (the second inductor) have the characteristic of resisting current changes. The above-mentioned rectifier module D2 can limit the current direction to ensure that the charging loop for the second energy storage module L2 to charge the first energy storage module C2 operates normally. Then, the first capacitor C1 and the first energy storage module C2 can drive the load LD at the same time; at this time, the first diode D1, the load LD, the rectifier module D2, the second energy storage module L2 and the first inductor L1 form a loop to drive the load LD. For example, the first capacitor C1 can be charged to about 60V~70V (V1), and the first energy storage module C2 can be charged to about 30V (V2); of course, the above voltage values ​​are only for example. Therefore, the load LD can obtain a driving voltage of about 90V to 100V (V1+V2).

[0066] Through the above circuit operation mechanism, the first capacitor C1 and the first energy storage module C2 can drive the load LD that requires a high driving voltage, so that the load LD can reach a higher power, thereby achieving the same power in the electronic ballast state and the mains state. Therefore, the boost converter circuit 1 is more widely used and can meet the needs of practical applications.

[0067] In addition, in this embodiment, the boost converter circuit 1 can drive the load LD with a driving voltage close to the voltage (effective value) of the mains. Therefore, the luminous flux of the load LD in the electronic ballast mode can be close to or higher than the luminous flux of the load LD in the mains mode. Therefore, the boost converter circuit 1 can achieve high efficiency and meet the requirements of practical applications.

[0068] In addition, in this embodiment, the boost converter circuit 1 can drive the load LD with a driving voltage close to the voltage (effective value) of the mains. Therefore, the luminous flux of the load LD in the electronic ballast mode can be close to or higher than the luminous flux of the load LD in the mains mode. Therefore, the user can replace more existing light-emitting diode SD lighting devices with a smaller number of light-emitting diode SD lighting devices (using this boost converter circuit). Therefore, the use of the boost converter circuit 1 can be more flexible.

[0069] Of course, this embodiment is only used for illustration and does not limit the scope of the present invention. Equivalent modifications or changes made according to the boost converter circuit of this embodiment should still be included in the patent scope of the present invention.

[0070] In summary, according to an embodiment of the present invention, the boost converter circuit 1 includes a switch SW, a first diode D1, a first inductor L1, a first capacitor C1, a first energy storage module C2 and a second energy storage module L2. The first end and the second end of the switch SW are respectively connected to the positive electrode of the voltage source and the first node N1. The first node N1 is connected to the positive electrode of the load LD. The negative electrode and the positive electrode of the first diode D1 are respectively connected to the first node N1 and the second node N2. The second node N2 is connected to the negative electrode of the voltage source. The first end and the second end of the first inductor L1 are respectively connected to the second node N2 and the third node N3. The first end and the second end of the first capacitor C1 are respectively connected to the first node N1 and the third node N3. The first end and the second end of the first energy storage module C2 are respectively connected to the third node N3 and the fourth node N4. The fourth node N4 is connected to the negative electrode of the load LD. The first end and the second end of the second energy storage module L2 are respectively connected to the third node N3 and the fourth node N4. When the switch SW is turned on, the voltage source charges the first inductor L1, the first capacitor C1 and the second energy storage module L2. When the switch SW is turned off, the second energy storage module L2 charges the first energy storage module C2, and the first capacitor C1 and the first energy storage module C2 drive the load LD at the same time. Through the above circuit operation mechanism, the first capacitor C1 and the first energy storage module C2 can drive the load LD that requires a high driving voltage, so that the load LD can achieve a higher power. Therefore, the boost converter circuit 1 is more widely used and can meet the needs of practical applications.

[0071] Furthermore, according to the embodiment of the present invention, the boost converter circuit 1 can drive the load LD with a driving voltage close to the voltage (effective value) of the mains. Therefore, the luminous flux of the load LD in the electronic ballast mode can be close to or higher than the luminous flux of the load LD in the mains mode. Therefore, the boost converter circuit 1 can achieve high efficiency and meet the requirements of practical applications.

[0072] In addition, according to the embodiment of the present invention, the boost converter circuit 1 can drive the load LD with a driving voltage close to the voltage (effective value) of the mains. Therefore, the luminous flux of the load LD in the electronic ballast mode can be close to or higher than the luminous flux of the load LD in the mains mode. Therefore, the user can replace more existing light-emitting diode SD lighting devices with a smaller number of light-emitting diode SD lighting devices (using this boost converter circuit 1). Therefore, the use of the boost converter circuit 1 can be more flexible.

[0073] In addition, according to an embodiment of the present invention, the boost converter circuit 1 further includes a rectifier module D2. The second end of the second energy storage module C2 is connected to the fourth node N4 through the rectifier module D2. The rectifier module D2 can limit the current direction to ensure that the charging circuit of the second energy storage module C2 charging the first energy storage module L2 operates normally. Therefore, the above circuit design can make the operation stability of the boost converter circuit 1 so that it can achieve the desired effect.

[0074] Furthermore, according to the embodiment of the present invention, the boost converter circuit 1 is simple in design, so the desired effect can be achieved without significantly increasing the cost. Therefore, the boost converter circuit 1 can achieve higher practicality and meet the requirements of different applications.

[0075] It should be noted that, although the above embodiments have been described in this article, the scope of patent protection of the present invention is not limited thereby. Therefore, based on the innovative concept of the present invention, changes and modifications made to the embodiments described herein, or equivalent structures or equivalent process changes made using the contents of the present specification and drawings, directly or indirectly applying the above technical solutions to other related technical fields are all included in the scope of protection of the patent of the present invention.

Claims

1. A boost converter circuit, characterized in that: include: A switch, wherein a first end and a second end of the switch are respectively connected to the positive electrode of the voltage source and a first node, and the first node is connected to the positive electrode of the load; a first diode, wherein a cathode and an anode of the first diode are connected to the first node and a second node respectively, and the second node is connected to a cathode of the voltage source; a first inductor, wherein a first end and a second end of the first inductor are connected to the second node and a third node respectively; A first capacitor, wherein a first end and a second end of the first capacitor are connected to the first node and a third node respectively; a first energy storage module, wherein a first end and a second end of the first energy storage module are respectively connected to the third node and a fourth node, and the fourth node is connected to the negative electrode of the load; and A second energy storage module, wherein a first end and a second end of the second energy storage module are connected to the third node and the fourth node respectively.

2. The boost converter circuit according to claim 1, wherein: It also includes a rectifier module, and the second end of the second energy storage module is connected to the fourth node through the rectifier module.

3. The boost converter circuit according to claim 2, wherein: The rectifier module is a second diode, the anode of the second diode is connected to the fourth node, and the cathode of the second diode is connected to the second end of the second energy storage module.

4. The boost converter circuit according to claim 2, wherein: When the switch is turned on and then turned off, the first energy storage module, the second energy storage module and the rectifier module form a loop.

5. The boost converter circuit according to claim 1, wherein: The first energy storage module is a second capacitor.

6. The boost converter circuit according to claim 1, wherein: The second energy storage module is a second inductor.

7. The boost converter circuit according to claim 1, wherein: When the switch is turned on, the voltage source charges the first inductor, the first capacitor and the second energy storage module.

8. The boost converter circuit according to claim 7, wherein: When the switch is turned off, the second energy storage module charges the first energy storage module.

9. The boost converter circuit according to claim 8, characterized in that: When the switch is turned off, the first capacitor and the first energy storage module drive the load simultaneously.

10. The boost converter circuit according to claim 1, wherein: The load includes a plurality of light emitting diodes.

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