Control drive circuit based on buoy application and night buoy
By using constant current circuit and transistor Q in night fishing floats, combined with voltage stabilization module, the problem of unstable LED light brightness is solved, the working time of the float battery is extended, and the night fishing experience is improved.
Patent Information
- Application Number
- CN202420492374.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-14
- Publication Date
- 2024-12-24
- Estimated Expiration
- 2034-03-14
AI Technical Summary
The existing LED lights for night fishing floats are unstable when the battery power is consumed quickly, resulting in users being prone to halos and visual fatigue, and have short effective working time.
The constant current circuit and transistor Q are used, combined with the voltage stabilization module, to ensure that the brightness of the float LED lamp is constant before the voltage of the float battery decreases, and the brightness of the LED lamp is controlled by constant current and stable voltage.
It achieves constant brightness of LED lights, extends the effective working time of the float battery, reduces user halo and visual fatigue, and improves the night fishing experience.
Smart Images
Figure CN222235099U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a control driving circuit based on a float application and a float for night use. Background Art
[0002] The fishing float floats on the water surface and reminds the angler whether the fish has been hooked by floating or sinking. In night fishing, in order to let the angler clearly see the state of the fishing float, most of the fishing floats used for night fishing are currently equipped with LED lights, so that the fishing float can glow on the water surface, which is convenient for the angler to see.
[0003] The working voltage of the existing night float battery is generally 2V-4.3V. As the power is consumed, the voltage changes rapidly, resulting in a significant change in the float brightness. When the float battery starts to discharge, the voltage is high, the float brightness is very high, even dazzling, and the user is prone to halo and visual fatigue. In addition, the current is very large at the beginning, the battery power is consumed quickly, and the effective working time of the float battery is short. Utility Model Content
[0004] In order to solve the technical problems existing in the prior art, the utility model provides a control driving circuit based on a float application, which can solve the problem of fast power consumption of the float battery at the beginning and make the brightness of the LED lamp constant.
[0005] To this end, the control drive circuit provided by the utility model is configured with a constant current circuit and a transistor Q. The output of the floating battery forms a constant current through the constant current circuit and is connected to the base of the transistor Q; the collector of the transistor Q serves as the first connection end of the control drive circuit and is used for connecting a floating LED lamp.
[0006] In some embodiments, the constant current circuit includes a transistor Q1, a transistor Q2, a resistor R1, and a resistor R2. One end of the resistor R2 serves as the second connection end of the control drive circuit and is connected to the emitter of the transistor Q, and the other end is connected to the collector of the transistor Q1 and the base of the transistor Q2; one end of R1 serves as the third connection end of the control drive circuit and is connected to the emitter of the transistor Q1, and the other end is connected to the base of the transistor Q1 and the emitter of the transistor Q2; the collector of the transistor Q2 is connected to the base of the transistor Q.
[0007] In some embodiments, the constant current circuit includes a transistor Q1, a transistor Q2, a resistor R1, and a resistor R2. One end of R1 serves as the second connection end of the control drive circuit and is connected to the emitter of the transistor Q1, and the other end is connected to the base of the transistor Q1 and the emitter of the transistor Q2; one end of the resistor R2 serves as the third connection end of the control drive circuit and is connected to the emitter of the transistor Q, and the other end is connected to the collector of the transistor Q1 and the base of the transistor Q2; the collector of the transistor Q2 is connected to the base of the transistor Q.
[0008] Another control drive circuit provided by the utility model is configured with a voltage stabilizing module and a resistor R1. The voltage stabilizing module outputs a stable voltage and provides it to the floating LED lamp through the resistor R1, so that the floating LED lamp can maintain a constant brightness before the floating battery voltage drops to the LED tube voltage drop.
[0009] The utility model also provides a night float, which is configured with a float battery, an LED lamp and a control drive circuit that enables the LED lamp to maintain constant brightness before the float battery voltage drops to the LED tube voltage drop. The control drive circuit is the control drive circuit provided by the utility model.
[0010] In some embodiments, the LED lamp is configured as a single LED or two or more LEDs.
[0011] In some embodiments, two or more LED lamps are configured to be connected in parallel.
[0012] Beneficial effects of the utility model: The control drive circuit is configured with a constant current circuit to provide a constant current on the base of the transistor Q, and the current I on the collector of the transistor Q c Its base current I b β times, I b is the output current of the constant current circuit, so the collector current of transistor Q is I c Constant, the floating LED lamp is connected to the collector of the transistor Q, and the current flowing through the floating LED lamp is equal to I c The constant current driving the LED light can effectively solve the problem of fast power consumption of the floating battery at the beginning, and improve the effective working time of the floating battery (this time refers to the luminous time that can make the floating LED light have a certain brightness). The brightness can be kept constant before the voltage of the floating battery drops to the voltage drop of the LED tube. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] The accompanying drawings are part of this application and are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention, but do not constitute an improper limitation of the present invention. Obviously, the drawings described below are only some embodiments. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work. In the drawings:
[0014] Figure 1 One of the circuit structures of the control drive circuit provided by the utility model;
[0015] Figure 2 The second circuit structure of the control drive circuit provided by the utility model;
[0016] Figure 3 The third circuit structure of the control drive circuit provided by the utility model. DETAILED DESCRIPTION
[0017] Example embodiments of the present invention will now be described more fully with reference to the accompanying drawings.
[0018] The control driving circuit is configured with a constant current circuit and a transistor Q. The output of the floating battery forms a constant current through the constant current circuit and is connected to the base of the transistor Q. The collector of the transistor Q serves as the first connection terminal of the control driving circuit for connecting the floating LED lamp. The specific structure is described in the following embodiment:
[0019] Embodiment 1
[0020] Reference Figure 1 The control driving circuit provided in this embodiment is configured with transistor Q, transistor Q1, transistor Q2, resistor R1 and resistor R2, transistor Q is configured as a PNP tube, transistor Q1 and transistor Q2 are configured as NPN tubes; transistor Q1, transistor Q2, resistor R1 and resistor R2 form a constant current circuit, resistor R1 is a sampling resistor, resistor R2 is a bias resistor, and its circuit structure is: one end of resistor R2 serves as the second connection end of the control driving circuit and is connected to the emitter of transistor Q, and the other end is connected to the collector of transistor Q1 and the base of transistor Q2; one end of R1 serves as the third connection end of the control driving circuit and is connected to the emitter of transistor Q1, and the other end is connected to the base of transistor Q1 and the emitter of transistor Q2; the collector of transistor Q2 is connected to the base of transistor Q, and the collector of transistor Q serves as the first connection end of the control driving circuit.
[0021] Figure 1 In the structure shown, the anode and cathode of the floating LED lamp are connected to the first connection terminal and the third connection terminal respectively, and the positive and negative electrodes of the floating battery V1 are connected to the second connection terminal and the third connection terminal respectively.
[0022] After the floating battery V1 is connected, the transistor Q2 starts to conduct under the action of the resistor R2. After conduction, the emitter current of the transistor Q2 flows through the resistor R1, and a voltage drop is generated on the resistor R1. When the voltage drop reaches the base turn-on voltage of the transistor Q1, the transistor Q1 starts to conduct. After the transistor Q1 is turned on, it will lower the base voltage of the transistor Q2, thereby forming a closed-loop current negative feedback.
[0023] Since the base turn-on voltage V be It is a diode characteristic with a clamping function, that is, the voltage across the resistor R1 is constant, so the current flowing through the resistor R1 is also constant, that is: I R 1 = V be÷R1, transistor Q2 and transistor Q1 both have large amplification factors, and resistor R1 is connected in series with transistor Q2. When transistor Q2 is turned on, I R1 Approximately equal to the collector current of the transistor Q2, that is, I Q2c ≈I R1 , is a constant current.
[0024] The base of transistor Q is connected to the collector of transistor Q2, so the base current of transistor Q is equal to I Q2c , the transistor Q amplifies the current by β times, that is: I Qc =β×I Q2c ≈β×I R1 =β×(V be ÷R1), which is a constant current; the collector of the transistor Q and the floating LED lamp are in series structure, so the current flowing through the floating LED lamp is a constant current, which realizes current control and ensures the constant brightness of the LED lamp.
[0025] Embodiment 2
[0026] Reference Figure 2 The control driving circuit provided in this embodiment is configured with transistor Q, transistor Q1, transistor Q2, resistor R1 and resistor R2, transistor Q is configured as NPN transistor, transistor Q1 and transistor Q2 are configured as PNP transistor; transistor Q1, transistor Q2, resistor R1 and resistor R2 form a constant current circuit, resistor R1 is a sampling resistor, resistor R2 is a bias resistor, and its circuit structure is: one end of R1 serves as the second connection end of the control driving circuit and is connected to the emitter of transistor Q1, and the other end is connected to the base of transistor Q1 and the emitter of transistor Q2; one end of resistor R2 serves as the third connection end of the control driving circuit and is connected to the emitter of transistor Q, and the other end is connected to the collector of transistor Q1 and the base of transistor Q2; the collector of transistor Q2 is connected to the base of transistor Q; the collector of transistor Q serves as the first connection end of the control driving circuit.
[0027] Figure 2 In the structure shown, the anode and cathode of the floating LED lamp are connected to the second connection end and the first connection end respectively, and the positive and negative electrodes of the floating battery V1 are connected to the second connection end and the third connection end respectively.
[0028] The principle of the control driving circuit provided in this embodiment is the same as that of the control driving circuit in the first embodiment, and will not be described in detail here.
[0029] In addition to the structures described in Embodiment 1 and Embodiment 2, the control circuit has another circuit structure as shown in FIG. Figure 3As shown, a voltage stabilizing module and a resistor R1 are configured. The voltage stabilizing module outputs a stable voltage and provides it to the floating LED lamp through the resistor R1, so that the floating LED lamp can maintain a constant brightness before the floating battery voltage drops to the LED tube voltage drop.
[0030] The voltage regulator module refers to a circuit unit or integrated circuit that can output a stable voltage. o It only needs to be higher than the on-state voltage VLED of the floating LED lamp; if a low-voltage dropout voltage regulator integrated circuit LDO with a small static operating current (uA level) and a small voltage drop is used, or even a reference voltage source chip can be used to achieve it, the output voltage can be adjusted or fixed.
[0031] Figure 3 The principle of the circuit structure shown is: the output of the floating battery B1 is output through the voltage regulator module to output a stable voltage V o The voltage is supplied to the floating LED lamp through resistor R1. When the output voltage V o Higher than the conduction voltage V of the floating LED lamp LED That is, a current I is generated in the loop LED , the current is calculated by the following formula: I LED =(Vo-V LED )÷R1, LED conduction voltage V LED It is a fixed value within a certain current range and can be determined by the conduction curve of the LED. LED The current size mainly depends on the resistance value of R1, which can achieve constant current control.
[0032] This control drive circuit:
[0033] 1) The current flowing through the LED lamp can be kept constant in the range of the float battery power dropping from 100% to 10%, which effectively solves the problem of fast power consumption of the float battery at the beginning and improves the effective working time of the float battery as a whole. Generally, the working time of a CR316 syringe battery is increased to about 15 hours or even longer, which is much higher than the existing float effective working time of about 6 hours.
[0034] 2) Keep the brightness of LED lights constant, so users are less likely to experience glare and visual fatigue.
[0035] 3) The configuration of this control drive circuit increases the working time, and the night float can use a CR311 battery with smaller capacity and lighter weight.
[0036] This control drive circuit is composed of fewer components, small size and low cost; the constant current circuit structure varies a lot, Figure 1 , 2 The circuit structure shown is an exemplary structure, and semiconductor components and resistors and capacitors can be added to adjust the performance parameters according to the configuration requirements, and can also be used in combination; Figure 3 The circuit structure shown is an exemplary structure. Semiconductor components and resistors and capacitors can be added as needed to adjust the performance parameters. When the output voltage of the voltage regulator module is selected appropriately, R1 can be omitted.
[0037] This control drive circuit can be applied to LED lamps with working current in the range of 0.1-10mA; it can keep constant brightness before the battery voltage drops to the voltage drop of the LED tube; the constant brightness time can be increased by selecting a transistor with a smaller voltage drop; when the control drive circuit is Figure 3 In order to achieve a longer battery life, the voltage regulator module should use a low voltage dropout integrated circuit LDO with a small static operating current (uA level) and a small voltage dropout. o The constant current control drive of LED can be realized.
[0038] This article describes the transistor as an example. Those skilled in the art should understand that the purpose of the control drive circuit can be achieved by replacing it with a Darlington transistor that meets the requirements, and it should also be understood as the transistor in the control drive circuit.
[0039] This control drive circuit is applied to the float, and together with the float battery V1 / B1 (referring to the component that provides power for the LED light on the float, which can be a battery or an independent power management module) and the LED light, it constitutes a night float. The connection relationship between the float battery, the LED light and the control drive circuit is as follows: Figure 1 , 2 , 3; the LED lamp is a single or multiple LED lamp beads connected in parallel.
[0040] The present disclosure has been described by the above-mentioned relevant embodiments, but the above-mentioned embodiments are only examples for implementing the present disclosure. It must be pointed out that the disclosed embodiments do not limit the scope of the present disclosure. On the contrary, changes and modifications made without departing from the spirit and scope of the present disclosure are all within the scope of patent protection of the present disclosure.
Claims
1. A control driving circuit based on a float application, characterized in that: The circuit is configured with a constant current circuit and a transistor Q. The output of the floating battery forms a constant current through the constant current circuit and is connected to the base of the transistor Q. The collector of the transistor Q serves as the first connection terminal of the control drive circuit and is used for connecting a floating LED lamp.
2. The control driving circuit based on floating application according to claim 1 is characterized in that: The constant current circuit includes a transistor Q1, a transistor Q2, a resistor R1 and a resistor R2; one end of the resistor R2 serves as the second connection end of the control drive circuit and is connected to the emitter of the transistor Q, and the other end is connected to the collector of the transistor Q1 and the base of the transistor Q2; one end of R1 serves as the third connection end of the control drive circuit and is connected to the emitter of the transistor Q1, and the other end is connected to the base of the transistor Q1 and the emitter of the transistor Q2; the collector of the transistor Q2 is connected to the base of the transistor Q.
3. The control driving circuit based on floating application according to claim 1 is characterized in that: The constant current circuit includes a transistor Q1, a transistor Q2, a resistor R1 and a resistor R2; one end of R1 serves as the second connection end of the control drive circuit and is connected to the emitter of the transistor Q1, and the other end is connected to the base of the transistor Q1 and the emitter of the transistor Q2; one end of the resistor R2 serves as the third connection end of the control drive circuit and is connected to the emitter of the transistor Q, and the other end is connected to the collector of the transistor Q1 and the base of the transistor Q2; the collector of the transistor Q2 is connected to the base of the transistor Q.
4. A control driving circuit based on a float application, characterized in that: The circuit is configured with a voltage stabilizing module and a resistor R1. The voltage stabilizing module outputs a stable voltage and provides it to the floating LED lamp through the resistor R1, so that the floating LED lamp can maintain a constant brightness before the floating battery voltage drops to the LED tube voltage drop.
5. A night float, characterized in that: The float is configured with a float battery, an LED lamp and a control drive circuit that enables the LED lamp to maintain constant brightness before the float battery voltage drops to the LED tube voltage drop. The control drive circuit is the control drive circuit described in any one of claims 1-4.
6. The night float according to claim 5, characterized in that: The LED lamps are configured as a single lamp or two or more lamps.
7. The night float according to claim 6, characterized in that: When two or more LED lamps are configured, the LED lamps are connected in parallel.