Light supplement lamp and self-adaptive power circuit thereof

Abstract

The utility model discloses a light supplement lamp and a self-adaptive power circuit thereof, the circuit comprises a TYPE-C interface module, a PD induction module, a processor module and a switching power supply module, the TYPE-C interface module is connected with the PD induction module, the PD induction module is connected with the processor module, and the processor module is connected with the switching power supply module; the switching power supply module is a boost analog dimming switching power supply circuit. According to the technical scheme, the PD induction module is used for reading the power supply data through the TYPE-C interface module and transmitting the power supply data to the processor module, the processor module controls the switching power supply module to achieve the power adjusting function of the light supplementing lamp, and a light supplementing lamp user can conveniently conduct lighting operation better.

Description

Technical Field

[0001] The utility model relates to the technical field of electronic circuits, and more specifically to a fill light and an adaptive power circuit thereof. Background Art

[0002] Fill lights are used to compensate for the lack of illumination of certain equipment or plants. Common fill lights include greenhouse fill lights, photography fill lights, and license plate fill lights. Fill lights are most widely used in the photography industry. Workers use fill lights to provide auxiliary light when shooting in the absence of light conditions, so as to obtain reasonable picture materials.

[0003] In the prior art, fill lights generally use constant current or constant voltage, but fill lights on the market are not equipped with corresponding power adjustment functions, resulting in users being unable to perform lighting operations better. Utility Model Content

[0004] In order to solve one or more of the above technical problems, the purpose of the present utility model is to provide a fill light and an adaptive power circuit thereof.

[0005] The technical solution adopted by the utility model to solve the problem is:

[0006] An adaptive power circuit of a fill light, comprising a TYPE-C interface module, a PD induction module, a processor module and a switch power module, wherein the TYPE-C interface module is connected to the PD induction module, the PD induction module is connected to the processor module, and the processor module is connected to the switch power module;

[0007] The switching power supply module is a boost type analog dimming switch power supply circuit, and the switching power supply module is configured to control the output current amplitude according to the PWM signal output by the processor module.

[0008] As a further improvement of the above technical solution, the PD induction module includes an induction chip of model HUSB238, a resistor R1 and a capacitor C1. The induction chip is configured with a power supply end, a first communication end and a second communication end. The TYPE-C interface module is configured with a power supply end and a communication end. The power supply end of the TYPE-C interface module is connected to the power supply end of the induction chip through the resistor R1, and is connected to one end of the capacitor C1 through the resistor R1. The power supply end of the TYPE-C interface module is connected to the switching power supply module, and the other end of the capacitor C1 is connected to the ground end. The communication end of the TYPE-C interface module is connected to the first communication end of the induction chip, and the second communication end of the induction chip is connected to the processor module.

[0009] As a further improvement of the above technical solution, the switching power supply module includes a dimming chip of model FP7209, an inductor L1, a diode D1, a switch tube Q1, a resistor R2, a resistor R3, a resistor R4, a resistor R5 and a capacitor C2. The dimming chip is configured with a dimming control end, a switch control end, a current sampling end, an overvoltage protection end and a feedback end. The dimming control end of the dimming chip is connected to the processor module, the switch control end of the dimming chip is connected to the gate of the switch tube Q1, the source of the switch tube Q1 is respectively connected to one end of the resistor R2 and the current sampling end of the dimming chip, and the other end of the resistor R2 is connected to the ground end. The drain of the switch tube Q1 is respectively connected to the anode of the diode D1 and one end of the inductor L1, the other end of the inductor L1 is connected to the power supply end of the TYPE-C interface module, the cathode of the diode D1 is connected to the ground end through the capacitor C2, the cathode of the diode D1 is connected to the ground end through the resistor R3 and the resistor R4 in sequence, the overvoltage protection terminal of the dimming chip is connected to the connection point of the resistor R3 and the resistor R4, the feedback end of the dimming chip is connected to one end of the resistor R5, the other end of the resistor R5 is connected to the ground end, and the cathode of the diode D1 and the feedback end of the dimming chip are connected to the outside.

[0010] The utility model also discloses a fill light, comprising a light source module and the above-mentioned adaptive power circuit, wherein the switch power supply module is connected to the light source module.

[0011] The beneficial effect of the utility model is: the technical solution utilizes the PD induction module to read the power supply data through the TYPE-C interface module and transmits it to the processor module. The processor module controls the switching power supply module to realize the power adjustment function of the fill light, which is convenient for the user of the fill light to better perform lighting operations. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] The utility model is further explained below in conjunction with the accompanying drawings and specific implementation methods.

[0013] Figure 1 It is a principle diagram of the adaptive power circuit in the utility model. DETAILED DESCRIPTION

[0014] This section will describe in detail the specific embodiments of the utility model. The preferred embodiments of the utility model are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the utility model, but it cannot be understood as a limitation on the protection scope of the utility model.

[0015] In the description of the present invention, it should be understood that the descriptions involving orientations, such as up, down, front, back, left, right, etc., and the orientations or positional relationships indicated are based on the orientations or positional relationships described in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0016] In the description of the present utility model, "several" means one or more, "more" means more than two, "greater than", "less than", "exceed" etc. are understood to exclude the number itself, and "above", "below", "within" etc. are understood to include the number itself. If there is a description of "first" or "second", it is only used for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0017] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0018] Reference Figure 1 The present application discloses an adaptive power circuit of a fill light, wherein a first embodiment thereof comprises a TYPE-C interface module, a PD induction module, a processor module and a switch power module, wherein the TYPE-C interface module is connected to the PD induction module, the PD induction module is connected to the processor module, and the processor module is connected to the switch power module;

[0019] The switching power supply module is a boost type analog dimming switch power supply circuit, and the switching power supply module is configured to control the output current amplitude according to the PWM signal output by the processor module.

[0020] Specifically, in this embodiment, the PD induction module is used to read external power supply data through the TYPE-C interface module and transmit it to the processor module. The processor module controls the switching power supply module to realize the power adjustment function of the fill light, so as to facilitate the user of the fill light to better perform lighting operations.

[0021] Further as a preferred implementation, in this embodiment, the PD induction module includes an induction chip of model HUSB238, a resistor R1 and a capacitor C1, the induction chip is configured with a power supply end, a first communication end and a second communication end, the TYPE-C interface module is configured with a power supply end and a communication end, the power supply end of the TYPE-C interface module is connected to the power supply end of the induction chip through the resistor R1, and is connected to one end of the capacitor C1 through the resistor R1, the power supply end of the TYPE-C interface module is connected to the switching power supply module, the other end of the capacitor C1 is connected to the ground end, the communication end of the TYPE-C interface module is connected to the first communication end of the induction chip, and the second communication end of the induction chip is connected to the processor module.

[0022] As a further preferred implementation, in this embodiment, the switching power supply module includes a dimming chip of model FP7209, an inductor L1, a diode D1, a switch tube Q1, a resistor R2, a resistor R3, a resistor R4, a resistor R5 and a capacitor C2. The dimming chip is configured with a dimming control terminal, a switch control terminal, a current sampling terminal, an overvoltage protection terminal and a feedback terminal. The dimming control terminal of the dimming chip is connected to the processor module, the switch control terminal of the dimming chip is connected to the gate of the switch tube Q1, the source of the switch tube Q1 is respectively connected to one end of the resistor R2 and the current sampling terminal of the dimming chip, and the other end of the resistor R2 is connected to the ground terminal. The drain of the switch tube Q1 is respectively connected to the anode of the diode D1 and one end of the inductor L1, the other end of the inductor L1 is connected to the power supply end of the TYPE-C interface module, the cathode of the diode D1 is connected to the ground through the capacitor C2, the cathode of the diode D1 is connected to the ground through the resistor R3 and the resistor R4 in sequence, the overvoltage protection terminal of the dimming chip is connected to the connection point of the resistor R3 and the resistor R4, the feedback terminal of the dimming chip is connected to one end of the resistor R5, the other end of the resistor R5 is connected to the ground, and the cathode of the diode D1 and the feedback terminal of the dimming chip are connected to the outside.

[0023] The present application also discloses a fill light, a first embodiment of which includes a light source module and a first embodiment of the adaptive power circuit, wherein the switch power module is connected to the light source module. More specifically, in this embodiment, the cathode of the diode D1 is connected to one end of the light source module, and the feedback end of the dimming chip is connected to the other end of the light source module.

[0024] The above are only preferred embodiments of the present invention, and are not intended to limit the patent scope of the present invention. All equivalent structural changes made using the contents of the present invention specification and drawings under the utility model concept, or directly or indirectly applied in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. An adaptive power circuit for a fill light, characterized in that: It includes a TYPE-C interface module, a PD induction module, a processor module and a switch power module, wherein the TYPE-C interface module is connected to the PD induction module, the PD induction module is connected to the processor module, and the processor module is connected to the switch power module; The switching power supply module is a boost type analog dimming switch power supply circuit, and the switching power supply module is configured to control the output current amplitude according to the PWM signal output by the processor module.

2. The adaptive power circuit of a fill light according to claim 1, characterized in that: The PD induction module includes an induction chip of model HUSB238, a resistor R1 and a capacitor C1. The induction chip is configured with a power supply end, a first communication end and a second communication end. The TYPE-C interface module is configured with a power supply end and a communication end. The power supply end of the TYPE-C interface module is connected to the power supply end of the induction chip through the resistor R1, and is connected to one end of the capacitor C1 through the resistor R1. The power supply end of the TYPE-C interface module is connected to the switching power supply module, and the other end of the capacitor C1 is connected to the ground end. The communication end of the TYPE-C interface module is connected to the first communication end of the induction chip, and the second communication end of the induction chip is connected to the processor module.

3. The adaptive power circuit of a fill light according to claim 2, characterized in that: The switching power supply module includes a dimming chip of model FP7209, an inductor L1, a diode D1, a switch tube Q1, a resistor R2, a resistor R3, a resistor R4, a resistor R5 and a capacitor C2. The dimming chip is configured with a dimming control terminal, a switch control terminal, a current sampling terminal, an overvoltage protection terminal and a feedback terminal. The dimming control terminal of the dimming chip is connected to the processor module, the switch control terminal of the dimming chip is connected to the gate of the switch tube Q1, the source of the switch tube Q1 is respectively connected to one end of the resistor R2 and the current sampling terminal of the dimming chip, the other end of the resistor R2 is connected to the ground terminal, and the switch tube Q The drain of 1 is respectively connected to the positive electrode of the diode D1 and one end of the inductor L1, the other end of the inductor L1 is connected to the power supply end of the TYPE-C interface module, the cathode of the diode D1 is connected to the ground end through the capacitor C2, the cathode of the diode D1 is connected to the ground end through the resistor R3 and the resistor R4 in sequence, the overvoltage protection terminal of the dimming chip is connected to the connection point of the resistor R3 and the resistor R4, the feedback end of the dimming chip is connected to one end of the resistor R5, the other end of the resistor R5 is connected to the ground end, and the cathode of the diode D1 and the feedback end of the dimming chip are connected to the outside.

4. A fill light, characterized in that: It comprises a light source module and the adaptive power circuit according to any one of claims 1 to 3, wherein the cathode of the diode D1 and the feedback end of the dimming chip are respectively connected to the light source module.

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