Boost circuit and device

Abstract

The utility model discloses a boost circuit and equipment. The boost circuit comprises a driving module, a relay module and a clamping voltage module. The driving module accesses a pulse signal and is used for outputting a driving signal according to the pulse signal; the relay module is connected with the power supply end, the output end, the driving module and the clamping voltage module, the relay module is used for connecting the power supply end and the clamping voltage module according to the driving signal, and the clamping voltage module is used for generating clamping voltage according to the voltage of the power supply end; the relay module is further used for connecting the clamping voltage module and the output end according to the driving signal, and the output end outputs a first voltage signal. The boost circuit provided by the utility model does not need to add a power supply, and is simple in circuit structure and low in cost.

Description

TECHNICAL FIELD

[0001] The utility model relates to circuit design technical field especially relates to a kind of boost circuit and equipment. BACKGROUND

[0002] Boost circuit is widely used in various electronic devices, by the input low voltage is raised to higher voltage, can drive contactor or circuit breaker etc.

[0003] At present, boost circuit generally adopts the double output design of switching power supply, different voltage and current are output through two output ends, or two power supply outputs two voltage modes are realized, however, the above boost circuit structure is complex, leading to higher cost. UTILITY MODEL CONTENTS

[0004] The utility model provides a kind of boost circuit and equipment to solve the problem of higher cost caused by complex structure of boost circuit in prior art.

[0005] According to an aspect of the utility model, a kind of boost circuit is provided, including drive module, relay module and clamping voltage module;

[0006] The drive module is connected pulse signal, and the drive module is used to output drive signal according to the pulse signal;

[0007] The relay module is connected power supply end, output end, the drive module and the clamping voltage module, and the relay module is used to connect the power supply end and the clamping voltage module according to the drive signal, and the clamping voltage module is used to generate clamping voltage according to the voltage of the power supply end;

[0008] The relay module is also used to connect the clamping voltage module and the output end according to the drive signal, and the output end outputs first voltage signal.

[0009] Optionally, the drive module includes voltage stabilizing unit and switch unit, the first end of the voltage stabilizing unit is connected with the input end of the drive module, the voltage stabilizing unit is used to carry out voltage stabilizing treatment to the input pulse signal, the control end of the switch unit is connected with the second end of the voltage stabilizing unit, the first end of the switch unit is connected with the output end of the drive module, the second end of the switch unit is grounded, and the switch unit is used to turn on or turn off according to the signal output by the voltage stabilizing unit, and output the drive signal when turned on.

[0010] Optionally, the voltage stabilizing unit comprises a first resistor, a second resistor and a first capacitor, a first end of the first resistor is connected to a first end of the voltage stabilizing unit, a second end of the first resistor is connected to a first end of the second resistor, a first end of the first capacitor and a second end of the voltage stabilizing unit, a second end of the second resistor and a second end of the first capacitor are grounded.

[0011] Optionally, the switch unit comprises a first transistor, a control end of the first transistor is connected to a control end of the switch unit, a first end of the first transistor is connected to a first end of the switch unit, a second end of the first transistor is connected to a second end of the switch unit.

[0012] Optionally, the relay module comprises a relay, a third resistor, a fourth resistor and a fifth resistor, a first end of a coil of the relay is connected to the power supply end, a second end of the coil of the relay is connected to an output end of the driving module, a first end of a contact of the relay is connected to a first end of the clamping voltage module, a second end of the contact of the relay is connected to a first end of the third resistor, a second end of the third resistor is connected to a first end of the fourth resistor and a third end of the contact of the relay, a second end of the fourth resistor is connected to the power supply end, a fourth end of the contact of the relay is connected to the output end, a fifth end of the contact of the relay is connected to a first end of the fifth resistor, a second end of the fifth resistor is grounded, a sixth end of the contact of the relay is connected to a second end of the clamping voltage module.

[0013] Optionally, the clamping voltage module comprises an electric quantity storage unit and a clamping unit, a first end of the electric quantity storage unit is connected to a first end of the clamping voltage module and a first end of the clamping unit, a second end of the electric quantity storage unit is connected to a second end of the clamping voltage module and a second end of the clamping unit, the electric quantity storage unit is used for storing electric quantity according to voltage between two ends of the electric quantity storage unit, the clamping unit is used for clamping voltage between two ends of the electric quantity storage unit.

[0014] Optionally, the electric quantity storage unit comprises at least one capacitor, the at least one capacitor is connected in parallel between the first end of the electric quantity storage unit and the second end of the electric quantity storage unit.

[0015] Optionally, the clamping unit comprises a first voltage stabilizing tube, a first end of the first voltage stabilizing tube is connected to a first end of the clamping unit, a second end of the first voltage stabilizing tube is connected to a second end of the clamping unit.

[0016] Optionally, the voltage boosting circuit further comprises a first diode, a first end of the first diode is connected to the relay module, a second end of the first diode is connected to the driving module.

[0017] According to another aspect of the present application, there is provided an apparatus comprising the voltage boosting circuit.

[0018] The technical scheme of the present application provides a voltage boosting circuit, comprising a driving module, a relay module and a clamping voltage module; the driving module is connected to a pulse signal, and the driving module is configured to output a driving signal according to the pulse signal; the relay module is connected to a power supply end, an output end, the driving module and the clamping voltage module, and the relay module is configured to connect the power supply end and the clamping voltage module according to the driving signal, and the clamping voltage module is configured to generate a clamping voltage according to the voltage of the power supply end; the relay module is further configured to connect one end of the clamping voltage module and the output end according to the driving signal, at this time, the relay module transmits the voltage of the power supply end to the other end of the clamping voltage module, and thus the first voltage signal output by the output end is the superimposed voltage of the voltage of the power supply end and the clamping voltage, thereby achieving voltage boosting of the voltage of the power supply end without increasing the power supply, and the circuit structure is simple and the cost is low, thereby solving the problem of high cost caused by the complex structure of the voltage boosting circuit in the prior art.

[0019] It should be understood that the content described in this part is not intended to identify the key or important features of the embodiments of the present application, nor is it used to limit the scope of the present application. Other features of the present application will become apparent from the following description. BRIEF DESCRIPTION OF DRAWINGS

[0020] In order to more clearly illustrate the technical scheme in the embodiments of the present application, the drawings needed in the embodiment description will be briefly introduced as follows. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0021] Figure 1 is a structural schematic diagram of a voltage boosting circuit provided by the embodiments of the present application;

[0022] Figure 2 is a circuit diagram of a voltage boosting circuit provided by the embodiments of the present application;

[0023] Figure 3 is a structural schematic diagram of an apparatus provided by the embodiments of the present application. DETAILED DESCRIPTION

[0024] In order to make the person skilled in the art better understand the technical scheme of the present application, the technical scheme in the embodiments of the present application will be described clearly and completely below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by the person skilled in the art without creative labor should belong to the scope of protection of the present application.

[0025] It should be noted that the terms "first", "second" and the like in the specification and claims of the present application and the above drawings are used to distinguish similar objects, and do not necessarily have to be used to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged under appropriate circumstances, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "include" and "have" and any variations thereof are intended to cover non-exclusive inclusion, for example, a process, method, system, product or device including a series of steps or units does not have to be limited to those steps or units clearly listed, but can include other steps or units not clearly listed or inherent to these processes, methods, products or devices.

[0026] The embodiment of the present application provides a boost circuit, Figure 1 is a structural schematic diagram of a boost circuit provided by the embodiment of the present application, as Figure 1 shown, the boost circuit 100 comprises a driving module 110, a relay module 120 and a clamping voltage module 130; the driving module 110 is connected with a pulse signal, and the driving module 110 is used for outputting a driving signal according to the pulse signal; the relay module 120 is connected with a power supply end V1, an output end OUT, the driving module 110 and the clamping voltage module 130, and the relay module 120 is used for connecting the power supply end V1 and the clamping voltage module 130 according to the driving signal, and the clamping voltage module 130 is used for generating a clamping voltage according to the voltage of the power supply end V1; the relay module 120 is also used for connecting the clamping voltage module 130 and the output end OUT according to the driving signal, and the output end OUT outputs a first voltage signal.

[0027] In this embodiment, the boost circuit 100 is a circuit for raising the input low voltage to a higher voltage to meet the requirement of using high voltage circuit elements, for example, to drive a contactor or a circuit breaker. The drive module 110 is a module for outputting a drive signal according to a pulse signal, for example, when the pulse signal is a high level signal, the drive signal is valid, and when the pulse signal is a low level signal, the drive signal is invalid. The period of the pulse signal can be calculated according to the device specification standard of the contactor or the circuit breaker to be driven. The relay module 120 is a switching device that is turned on or turned off according to the drive signal. The relay module 120 includes elements such as a relay. The clamping voltage module is a module for generating a clamping voltage to limit the voltage across the two terminals to a fixed voltage value.

[0028] In this embodiment, when the pulse signal is a low level signal, the drive module 110 is in an off state, the drive signal is invalid, the relay module 120 is connected to the power supply end V1 and the clamping voltage module 130, the clamping voltage module 130 stores the amount of electricity according to the voltage of the power supply end V1 and generates a clamping voltage, and when the pulse signal is a high level, the drive module 110 is turned on and outputs a valid drive signal, the relay module 120 is connected to the clamping voltage module 130 and the output end OUT, and the output end OUT outputs a first voltage signal.

[0029] The technical scheme of this embodiment provides a boost circuit, which includes a drive module, a relay module, and a clamping voltage module. The drive module is connected to a pulse signal and is used to output a drive signal according to the pulse signal. The relay module is connected to a power supply end, an output end, the drive module, and the clamping voltage module. The relay module is used to connect the power supply end and the clamping voltage module according to the drive signal, and the clamping voltage module is used to generate a clamping voltage according to the voltage of the power supply end. The relay module is also used to connect one end of the clamping voltage module and the output end according to the drive signal. At this time, the relay module transmits the voltage of the power supply end to the other end of the clamping voltage module, so that the first voltage signal output by the output end is the superimposed voltage of the voltage of the power supply end and the clamping voltage. The boost circuit of this embodiment realizes the boost of the voltage of the power supply end, does not need to increase the power supply, has a simple circuit structure and low cost, and solves the problem of high cost caused by the complex structure of the boost circuit in the prior art.

[0030] Figure 2 A circuit diagram of a boost circuit is provided by the embodiment of the utility model, as shown in Figure 2 The drive module 110 includes a voltage stabilizing unit and a switching unit. The first end of the voltage stabilizing unit is connected to the input end of the drive module 110. The voltage stabilizing unit is used to stabilize the input pulse signal. The control end of the switching unit is connected to the second end of the voltage stabilizing unit. The first end of the switching unit is connected to the output end of the drive module 110. The second end of the switching unit is grounded. The switching unit is used to turn on or turn off according to the signal output by the voltage stabilizing unit and output a drive signal when turned on.

[0031] In the embodiment, the voltage stabilizing unit is a unit for performing voltage stabilization processing on the input pulse signal, for example, filtering the pulse signal and improving the stability of the pulse signal. The switching unit is a unit for turning on or off according to the pulse signal, and includes a switching element and the like. On the basis of the above embodiment, when the pulse signal is a high-level signal, the switching unit is turned on and outputs an effective driving signal, and when the pulse signal is a low-level signal, the switching unit is turned off and the output driving signal is invalid.

[0032] Specifically, the voltage stabilizing unit includes a first resistor R1, a second resistor R2, and a first capacitor C1. The first end of the first resistor R1 is connected to the first end of the voltage stabilizing unit, the second end of the first resistor R1 is connected to the first end of the second resistor R2, the first end of the first capacitor C1, and the second end of the voltage stabilizing unit, and the second end of the second resistor R2 and the second end of the first capacitor C1 are grounded. The switching unit includes a first transistor Q1. The control end of the first transistor Q1 is connected to the control end of the switching unit, the first end of the first transistor Q1 is connected to the first end of the switching unit, and the second end of the first transistor Q1 is connected to the second end of the switching unit. Among them, the first capacitor C1 is a filter capacitor, which filters the pulse signal to make the signal input to the switching unit more stable.

[0033] Referring to the above embodiment, the pulse signal is divided by the first resistor R1 and the second resistor R2, and filtered by the first capacitor C1 before being output to the control end of the first transistor Q1. When the pulse signal is a low-level signal, the first transistor Q1 is turned off, i.e. the switching unit is turned off, and the switching unit outputs an invalid driving signal. When the pulse signal is a high-level signal, the first transistor Q1 is turned on, i.e. the switching unit is turned on, and the switching unit outputs an effective driving signal, wherein the effective driving signal is a low-level signal.

[0034] Continuing to refer to Figure 2 The relay module 120 includes a relay K1, a third resistor R3, a fourth resistor R4, and a fifth resistor R5. The first end a of the coil of the relay K1 is connected to the power supply end V1, the second end b of the coil of the relay K1 is connected to the output end of the driving module 110, the first end c of the contact of the relay K1 is connected to the first end of the clamping voltage module 130, the second end d of the contact of the relay K1 is connected to the first end of the third resistor R3, the second end of the third resistor R3 is connected to the first end of the fourth resistor R4 and the third end e of the contact of the relay K1, the second end of the fourth resistor R4 is connected to the power supply end V1, the fourth end f of the contact of the relay K1 is connected to the output end OUT, the fifth end g of the contact of the relay K1 is connected to the first end of the fifth resistor R5, the second end of the fifth resistor R5 is grounded, and the sixth end h of the contact of the relay K1 is connected to the second end of the clamping voltage module 130.

[0035] On the basis of the above embodiment, when the drive module 110 is in the off state, the drive signal output by the drive module 110 is invalid, the relay K1 does not act, the first end c of the contact of the relay K1 and the second end d of the contact of the relay K1 are connected (cd is the normally closed contact of the relay K1), the fifth end g of the contact of the relay K1 and the sixth end h of the contact of the relay K1 are connected (gh is the normally closed contact of the relay K1), the voltage of the power supply end V1 is transmitted to the first end of the clamping voltage module 130 through the cd normally closed contact of the relay K1, the second end of the clamping voltage module 130 is grounded through the gh normally closed contact of the relay K1, the clamping voltage module 130 stores the electric quantity according to the voltage of the power supply end V1, and generates the clamping voltage. When the drive module 110 is in the on state, the valid drive signal output by the drive module 110, the coil of the relay K1 is powered, the relay K1 acts, the first end c of the contact of the relay K1 and the fourth end f of the contact of the relay K1 are connected (cf is the normally open contact of the relay K1), the third end e of the contact of the relay K1 and the sixth end h of the contact of the relay K1 are connected (eh is the normally open contact of the relay K1), the voltage of the power supply end V1 is transmitted to the second end of the clamping voltage module 130 through the eh normally open contact of the relay K1, the first end of the clamping voltage module 130 is connected to the output end OUT through the cf normally open contact of the relay K1, and the first voltage signal output by the output end OUT is the superposition of the voltage of the power supply end V1 and the clamping voltage.

[0036] With reference to the above Figure 2 , the clamping voltage module 130 includes an electric quantity storage unit and a clamping unit, the first end of the electric quantity storage unit is connected to the first end of the clamping voltage module and the first end of the clamping unit, the second end of the electric quantity storage unit is connected to the second end of the clamping voltage module and the second end of the clamping unit, the electric quantity storage unit is used to store electric quantity according to the voltage across the electric quantity storage unit, and the clamping unit is used to clamp the voltage across the electric quantity storage unit. Wherein, the electric quantity storage unit is a unit for storing electric quantity, and the clamping unit is connected in parallel across the electric quantity storage unit to clamp the voltage across the electric quantity storage unit, so that the electric quantity storage unit outputs a fixed clamping voltage.

[0037] Specifically, the electric quantity storage unit includes at least one capacitor, and the at least one capacitor is connected in parallel between the first end of the electric quantity storage unit and the second end of the electric quantity storage unit. For example, the electric quantity storage unit includes a second capacitor C2, a third capacitor C3, a fourth capacitor C4, and a fifth capacitor C5, the first end of the second capacitor C2, the first end of the third capacitor C3, the first end of the fourth capacitor C4, and the first end of the fifth capacitor C5 are connected to the first end of the electric quantity storage unit, and the second end of the second capacitor C2, the second end of the third capacitor C3, the second end of the fourth capacitor C4, and the second end of the fifth capacitor C5 are connected to the second end of the electric quantity storage unit. The clamping unit includes a first zener Z1, the first end of the first zener Z1 is connected to the first end of the clamping unit, and the second end of the first zener Z1 is connected to the second end of the clamping unit.

[0038] Based on the above embodiment, when the relay K1 is not actuated, the voltage of the power supply end V1 is transmitted to the first end of the second capacitor C2, the first end of the third capacitor C3, the first end of the fourth capacitor C4, and the first end of the fifth capacitor C5 through the cd normally closed contact of the relay K1, the second end of the second capacitor C2, the second end of the third capacitor C3, the second end of the fourth capacitor C4, and the second end of the fifth capacitor C5 are grounded through the gh normally closed contact of the relay K1, the second capacitor C2, the third capacitor C3, the fourth capacitor C4, and the fifth capacitor C5 store electric quantity according to the voltage of the power supply end V1, the first zener Z1 clamps the voltage across the second capacitor C2, the third capacitor C3, the fourth capacitor C4, and the fifth capacitor C5, for example, the clamping voltage of the first zener Z1 is 9V. When the relay K1 is actuated, the voltage of the power supply end V1 is transmitted to the second end of the second capacitor C2, the second end of the third capacitor C3, the second end of the fourth capacitor C4, and the second end of the fifth capacitor C5 through the eh normally open contact of the relay K1, the first end of the second capacitor C2, the first end of the third capacitor C3, the first end of the fourth capacitor C4, and the first end of the fifth capacitor C5 are connected to the output end OUT through the cf normally open contact of the relay K1, and the first voltage signal output by the output end OUT is the superposition of the voltage of the power supply end V1 and the clamping voltage, for example, the voltage of the power supply end V1 is 15V, the clamping voltage is 9V, and the first voltage signal output by the output end OUT is 24V, which effectively improves the voltage of the power supply end.

[0039] With reference to the above Figure 2 , the boost circuit further includes a first diode D1 and a sixth resistor R6, the first end of the first diode D1 is connected to the relay module 120, and the second end of the first diode D1 is connected to the driving module 110. The first end of the sixth resistor R6 is connected to the power supply end V1, and the second end of the sixth resistor R6 is connected to the first end of the first diode D1. The first diode D1 is connected between the output end of the driving module 120 and the first end of the coil of the relay K1, which can prevent the voltage of the first end of the coil of the relay K1 from flowing backward.

[0040] The embodiment of the utility model further provides a kind of equipment, Figure 3 It is the structural schematic diagram of a kind of equipment provided in the embodiment of the utility model, on the basis of above embodiment, as Figure 3 As shown in the above embodiment, the device 10 provided in the embodiment includes the boost circuit 100 provided in any of the above embodiments, has the beneficial effects of the boost circuit 100 provided in any of the above embodiments, which will not be repeated here.

[0041] It should be understood that the steps can be reordered, added, or deleted using the various forms of the flow shown above. For example, the steps described in the utility model can be executed in parallel, sequentially, or in a different order, as long as the desired results of the technical solutions of the utility model can be achieved, and this document does not limit it here.

[0042] The above specific embodiments do not constitute a limitation on the scope of protection of the utility model. Those skilled in the art should understand that various modifications, combinations, sub-combinations and substitutions can be made according to design requirements and other factors. Any modification, equivalent substitution and improvement within the spirit and principles of the utility model should be included in the scope of protection of the utility model.

Claims

1. A boost circuit, characterized by comprising: The drive module, the relay module and the clamping voltage module are included. The drive module is connected with a pulse signal, and is configured to output a drive signal according to the pulse signal. The relay module is connected with a power supply end, an output end, the drive module and the clamping voltage module, and is configured to connect the power supply end and the clamping voltage module according to the drive signal, and the clamping voltage module is configured to generate a clamping voltage according to the voltage of the power supply end. The relay module is further configured to connect the clamping voltage module and the output end according to the drive signal, and the output end outputs a first voltage signal.

2. The boost circuit of claim 1, wherein, The drive module includes a voltage stabilizing unit and a switch unit, a first end of the voltage stabilizing unit is connected with an input end of the drive module, the voltage stabilizing unit is configured to stabilize the input pulse signal, a control end of the switch unit is connected with a second end of the voltage stabilizing unit, a first end of the switch unit is connected with an output end of the drive module, a second end of the switch unit is grounded, and the switch unit is configured to be turned on or turned off according to the signal output by the voltage stabilizing unit, and output the drive signal when turned on.

3. The boost circuit of claim 2, wherein, The voltage stabilizing unit includes a first resistor, a second resistor and a first capacitor, a first end of the first resistor is connected with the first end of the voltage stabilizing unit, a second end of the first resistor is connected with a first end of the second resistor, a first end of the first capacitor and a second end of the voltage stabilizing unit, and a second end of the second resistor and a second end of the first capacitor are grounded.

4. The boost circuit of claim 2, wherein, The switch unit includes a first transistor, a control end of the first transistor is connected with the control end of the switch unit, a first end of the first transistor is connected with the first end of the switch unit, and a second end of the first transistor is connected with the second end of the switch unit.

5. The boost circuit of claim 1, wherein, The relay module includes a relay, a third resistor, a fourth resistor and a fifth resistor, a first end of a coil of the relay is connected with the power supply end, a second end of the coil of the relay is connected with the output end of the drive module, a first end of a contact of the relay is connected with a first end of the clamping voltage module, a second end of the contact of the relay is connected with a first end of the third resistor, a second end of the third resistor is connected with a first end of the fourth resistor and a third end of the contact of the relay, a second end of the fourth resistor is connected with the power supply end, a fourth end of the contact of the relay is connected with the output end, a fifth end of the contact of the relay is connected with a first end of the fifth resistor, a second end of the fifth resistor is grounded, and a sixth end of the contact of the relay is connected with a second end of the clamping voltage module.

6. The boost circuit of claim 1, wherein, The clamping voltage module includes an electric quantity storage unit and a clamping unit, a first end of the electric quantity storage unit is connected with the first end of the clamping voltage module and a first end of the clamping unit, a second end of the electric quantity storage unit is connected with a second end of the clamping voltage module and a second end of the clamping unit, the electric quantity storage unit is configured to store electric quantity according to the voltage between the two ends of the electric quantity storage unit, and the clamping unit is configured to clamp the voltage between the two ends of the electric quantity storage unit.

7. The boost circuit of claim 6, wherein, The electric quantity storage unit comprises at least one capacitor connected in parallel between the first end of the electric quantity storage unit and the second end of the electric quantity storage unit.

8. The boost circuit of claim 6, wherein, The clamping unit comprises a first Zener diode, a first end of the first Zener diode being connected to the first end of the clamping unit, and a second end of the first Zener diode being connected to the second end of the clamping unit.

9. The boost circuit of claim 1, wherein, A first diode is further included, a first end of the first diode being connected to the relay module, and a second end of the first diode being connected to the driving module.

10. An apparatus, comprising: The boost circuit comprises the relay module, the driving module, the electric quantity storage unit, the clamping unit, the first diode, the second diode, the third diode, the fourth diode, the fifth diode, the sixth diode, the seventh diode, the eighth diode, the ninth diode, the tenth diode, the eleventh diode, the twelfth diode, the thirteenth diode, the fourteenth diode, the fifteenth diode, the sixteenth diode, the seventeenth diode, the eighteenth diode, the nineteenth diode, the twentieth diode, the twenty-first diode, the twenty-second diode, the twenty-third diode, the twenty-fourth diode, the twenty-fifth diode, the twenty-sixth diode, the twenty-seventh diode, the twenty-eighth diode, the twenty-ninth diode, the thirtieth di

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