Novel commercial power floating charger
By designing a novel AC floating charger, which utilizes components such as rectifiers, current limiting circuits, voltage regulators, and relay switching circuits, the problems of overcharging and deep discharging of batteries are solved, achieving continuous battery protection and status indication, and extending battery life.
Patent Information
- Application Number
- CN202423106156.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-17
- Publication Date
- 2025-12-16
- Estimated Expiration
- 2034-12-17
AI Technical Summary
In existing technologies, batteries are susceptible to overcharging and deep discharging, which can shorten battery life and cause inconvenience due to the inability of traditional chargers to maintain a continuous connection.
A novel AC-powered float charger was designed, comprising a rectifier section, a current limiting circuit, a voltage regulator circuit, an automatic cutoff section, and a relay switch circuit. It utilizes components such as an LM317 variable voltage regulator, an LM317 variable voltage regulator, an LM358 operational amplifier, and transistors to achieve automatic charging and protection functions.
It achieves continuous battery charging protection, avoids overcharging and deep discharging, extends battery life, and provides convenient charging management by indicating battery status via LEDs.
Smart Images
Figure CN223680800U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to intelligent charger technical field, concretely relates to a novel commercial power float charging. BACKGROUND
[0002] Commercial power float charging is also called intelligent charger, it charges the battery with the same rate as the battery self-discharge, protects the battery from overcharging and deep discharge. Therefore, the float charger circuit can be connected to the battery indefinitely, that is, the charger circuit and the battery do not need to be disconnected. SUMMARY
[0003] In view of the above problems, the utility model provides a novel commercial power float charging for continuous charging of the battery. The utility model discloses a novel commercial power float charging, which comprises a rectifier part, a current limiting circuit (IC1), a voltage stabilizer circuit (IC2), an automatic cutoff section, a relay switch circuit and a light emitting LED.
[0004] The rectifier part comprises a step-down transformer, a bridge rectifier and a capacitor C1. The step-down transformer is used to reduce the alternating current power to 15V alternating current. The bridge rectifier is composed of four rectifier diodes. The bridge rectifier converts alternating current into pulsating direct current. The capacitor C1 filters the pulsating part of the direct current.
[0005] The current limiting circuit (IC1) is constructed by using an LM317 variable voltage regulator IC.
[0006] The voltage stabilizer circuit (IC2) is constructed by using an LM317 variable voltage stabilizer IC.
[0007] The automatic cutoff section is constructed by using an operational amplifier LM358. The operational amplifier LM358 is configured in comparator mode. The power supply of the operational amplifier LM358 is provided by a linear voltage stabilizer (IC3) LM7805.
[0008] The relay switch circuit comprises a relay, a transistor (T1) and a transistor (T2). The relay is controlled by the transistor (T1). The transistor (T1) is an NPN transistor BC547. The transistor (T2) is a PNP transistor, which connects the base of the transistor (T1) BC547 to ground and controls the output of the transistor (T1).
[0009] The light emitting LED1 is the power supply of the blue indicating circuit. The light emitting LED2 is red, indicating that the battery is charging. The light emitting LED3 is green, indicating that the battery is fully charged. BRIEF DESCRIPTION OF DRAWINGS
[0010] Figure 1 The utility model circuit diagram. DETAILED DESCRIPTION
[0011] As Figure 1 shown, in the embodiment of the utility model, a novel city power float charging, include: rectifier part (1), current limiting circuit (IC1) (2), voltage stabilizer circuit (IC2) (3), automatic cut-off section (4) and relay switch circuit (5), novel city power float charging is used to protect battery from overcharging and deep discharge.
[0012] Rectifier part (1) includes: step-down transformer and bridge rectifier, step-down transformer is used to reduce 15V alternating current to alternating current power supply, bridge rectifier rectifies alternating current into pulsating direct current, capacitor C1 filters pulsating part of direct current, and bridge rectifier is built by four rectifier diodes.
[0013] Current limiting circuit (IC1) (2) adopts LM317 variable voltage regulator IC.
[0014] Voltage stabilizer circuit (IC2) (3) is built by LM317 variable voltage stabilizer IC.
[0015] Automatic cut-off section (4) is built by operational amplifier LM358, operational amplifier LM358 is configured as comparator mode, and operational amplifier LM358 power supply is provided with stable 5V power supply by linear voltage stabilizer (IC3) LM7805.
[0016] Relay switch circuit (5) includes: relay, transistor (T1) and transistor (T2), relay is controlled by transistor (T1), transistor (T1) adopts NPN transistor BC547, when battery is charging, transistor (T1) starts to connect, thereby energizing relay.When the battery is fully charged, transistor (T1) is turned off, and the relay is powered off.Transistor (T2) adopts PNP transistor to ground the base of transistor (T1) BC547, and controls the output of transistor (T1).
[0017] Light-emitting LED1 is the power supply of blue indicating circuit, light-emitting LED2 is red indicating that the battery is charging, and light-emitting LED3 is green indicating that the battery is fully charged.
Claims
1. A novel utility float comprising: The rectifier part, current limiting circuit (IC1), voltage stabilizer circuit (IC2), automatic cut-off section, relay switch circuit and light-emitting LED are characterized in that the new mains float charging is used for protecting the battery from overcharging and deep discharging.
2. The novel utility float charging according to claim 1, characterized in that: The rectifier part comprises a step-down transformer, a bridge rectifier and a capacitor C1, the step-down transformer is used for reducing the AC power to 15V AC, the bridge rectifier is constructed by four rectifier diodes, the bridge rectifier rectifies the AC power into pulsating DC power, and the capacitor C1 filters the pulsating part of the DC power.
3. The novel utility float charger as claimed in claim 1, wherein: The current limiting circuit (IC1) is constructed by an LM317 variable voltage regulator IC.
4. The novel utility float charger as claimed in claim 1, wherein: The voltage stabilizer circuit (IC2) is constructed by an LM317 variable voltage stabilizer IC.
5. The novel utility float charger as claimed in claim 1, wherein: The automatic cut-off section is constructed by an operational amplifier LM358, the operational amplifier LM358 is configured in a comparator mode, and the operational amplifier LM358 is powered by a linear voltage stabilizer (IC3) LM7805.
6. The novel utility float charger as claimed in claim 1, wherein: The relay switch circuit comprises a relay, a transistor (T1) and a transistor (T2), the relay is controlled by the transistor (T1), the transistor (T1) is an NPN transistor BC547, and the transistor (T2) is a PNP transistor, the base of the transistor (T1) BC547 is grounded, and the output of the transistor (T1) is controlled.
7. The novel utility float charger as claimed in claim 1, wherein: The light-emitting LED comprises a light-emitting LED1, a light-emitting LED2 and a light-emitting LED3, the light-emitting LED1 is a power supply of a blue indicating circuit, the light-emitting LED2 is a red indicating circuit that the battery is charging, and the light-emitting LED3 is a green indicating circuit that the battery is fully charged.