C terminal intelligent regulator based on single function

Abstract

The utility model discloses a C terminal intelligent regulator based on a single function, comprising a C terminal, the C terminal is connected with a resistor R9, a resistor R10 and a resistor R11, a triode Q3 is connected between the resistor R10 and the resistor R11, a collector electrode of the triode Q3 is connected with a resistor R1, a resistor R2 and a resistor R3, and a composite triode Q2 is connected between the resistor R1 and the resistor R2; the regulator circuit is composed of discrete components, and under the environment of chip shortage, the number of alternative schemes for realizing circuit functions is large, and the application range is wide. The regulator combines discrete components into a circuit, and is high in universality, extremely low in cost and reliable in performance. The failure rate of the regulator is low, the ECU of the whole vehicle controls power generation, more intelligence is achieved, and the experience feeling of a driver is enhanced.

Description

Technical Field

[0001] This utility model relates to the field of regulator technology, specifically to a single-function C-terminal intelligent regulator. Background Technology

[0002] Currently, the two C-segment functions are mainly based on multi-functional regulators, which primarily address the problems of difficult vehicle starting and insufficient acceleration power during overtaking. However, their application in single-functional regulators is limited. With the rapid development of automotive electronics, the requirements for automotive power generation systems are increasing, and consumers are paying more attention to driving comfort and experience while pursuing vehicle functionality. Single-functional regulators currently mainly meet the stability and reliability requirements of automotive power generation systems, but there is still significant room for improvement in terms of driver comfort. To address this, domestic and international researchers have developed multi-functional regulators. However, most multi-functional regulators rely on integrated circuits (ICs) for development. The high development cost, long development cycle, and monopolistic nature of ICs impose certain limitations on the development and design of regulators.

[0003] In light of the above situation, the regulator market currently faces the following main problems:

[0004] 1. Single-function regulators are currently unable to meet the higher demands of automotive electronic systems.

[0005] 2. There is a market gap for single-function C-terminal intelligent regulators.

[0006] 3. Insufficient chip supply makes it impossible to guarantee market demand, which puts great pressure on the development of multi-functional regulators.

[0007] 4. The functions of integrated chips are generally fixed after the design is completed, which may not be well applied to some development cases. The application scope of integrated ICs is limited, which limits their ability to meet the ever-changing customer needs in the market environment.

[0008] 5. The core of a multi-functional regulator based on an integrated IC lies in the IC itself. Once the IC is damaged, the function of the entire regulator is impaired, greatly increasing the failure rate of the regulator.

[0009] To address this, a single-function C-terminal intelligent regulator is proposed. Summary of the Invention

[0010] The purpose of this invention is to provide a single-function C-terminal intelligent regulator to solve the problems mentioned in the background art.

[0011] To achieve the above objectives, this utility model provides the following technical solution: a single-function C-terminal intelligent regulator, including a C-terminal, on which resistors R9, R10 and R11 are connected, a transistor Q3 is connected between resistors R10 and R11, resistors R1, R2 and R3 are connected to the collector of transistor Q3, and a composite transistor Q2 is connected between resistors R1 and R2;

[0012] The composite transistor Q2 is connected to a resistor R8 and a capacitor C3 and is connected to a terminal F. The terminal F is connected to the negative terminal of diode D3, the positive terminal of diode D1 and the drain of MOSFET Q1. The positive terminal of diode D3 is connected to a terminal FR.

[0013] Preferably, the negative terminal of diode D1 is connected to the D+ terminal and the negative terminal of diode D2, and the positive terminal of diode D2 is connected to the L terminal.

[0014] Preferably, the source of the MOS transistor Q1 is connected to an E terminal, and the gate of the MOS transistor Q1 is connected to a Zener diode ZD2 and a capacitor C2.

[0015] Preferably, the composite transistor Q2 is further connected to one end of resistors R5 and R7, and the other end of resistors R5 and R7 is connected to the B+ terminal.

[0016] Preferably, the other ends of resistors R1 and R9 are connected to a common cathode diode D4. One anode of the common cathode diode D4 is connected to the S terminal, and the other anode is connected to resistor R4 and connected to the D+ terminal.

[0017] Preferably, a Zener diode ZD1 is also connected to the composite transistor Q2.

[0018] Compared with the prior art, the beneficial effects of this utility model are:

[0019] 1. The regulator circuit is composed of discrete components. In the event of a chip shortage, there are many alternative solutions to realize the circuit function, and the application range is wide.

[0020] 2. The regulator uses discrete components to form a circuit, which is highly versatile, extremely low in cost, and reliable in performance.

[0021] 3. The regulator has a low failure rate, and the vehicle ECU controls power generation, making it more intelligent and enhancing the driver's experience. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the regulator circuit of this utility model;

[0023] Figure 2This is the external wiring diagram of the regulator of this utility model. Detailed Implementation

[0024] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0025] Please see Figure 1-2 This utility model provides a technical solution: a single-function C-terminal intelligent regulator, including a C-terminal, with resistors R9, R10 and R11 connected to the C-terminal, a transistor Q3 connected between resistors R10 and R11, and resistors R1, R2 and R3 connected to the collector of transistor Q3.

[0026] Resistors R9, R10, R11, transistor Q3, resistors R1, R2, and R3 constitute the C-terminal communication module. This module acts as a switch connecting the ECU and the generator communication terminal. The ECU determines the vehicle's operating status by detecting the vehicle load signal. When the vehicle is operating at high power, the load feedback terminal sends a signal to the ECU. Upon receiving this signal, the ECU outputs a high potential to the regulator's C-terminal. Receiving this high potential signal, Q3 conducts, and R3 effectively short-circuits. At this time, the voltage regulation circuit module's regulating resistors R1 and R2 are connected in series to divide the voltage. When the regulated voltage is lower than the battery voltage, the generator stops generating electricity, reducing the vehicle's load output. When the vehicle exits high-power mode, the ECU receives a signal from the load feedback terminal indicating a change in vehicle load and disconnects the C-terminal control. At this time, Q3 is turned off, and the voltage regulation circuit module's regulating resistors R1 and R2+R3 are connected in series to divide the voltage. When the regulated voltage is higher than the battery voltage, the generator continues to generate electricity to power the vehicle. Through communication between the ECU and the regulator's C-end, the working state of the vehicle's generator is intelligently controlled, so that the vehicle operates in the optimal state when overtaking or climbing. When the car accelerates or starts, the generator's output current is temporarily reduced to reduce the engine load, thus saving energy and reducing emissions.

[0027] A composite transistor Q2 is connected between resistors R1 and R2. Resistor R8 and capacitor C3 are connected to the composite transistor Q2 and connected to terminal F. One end of resistors R5 and R7 are also connected to the composite transistor Q2. The other end of resistors R5 and R7 is connected to terminal B+. Zener diode ZD1 is also connected to the composite transistor Q2.

[0028] Resistors R1, R2, and R3, along with the composite transistor Q2 and Zener diode ZD1, constitute a voltage regulating circuit. Resistor R2, connected in series with R3 and R1, forms a voltage divider. The voltage across the divider R1 and R2+R3 is the generator voltage VB. When the generator's output voltage reaches the regulated voltage, Q2 conducts, Q1 is cut off, the field winding circuit is disconnected, and the generator's output voltage drops rapidly. When the voltage drops to the lower limit of the regulated voltage, Q2 is cut off, Q1 conducts, the field winding circuit is reconnected, and the generator voltage rises. When the generator voltage rises to the upper limit of the regulated voltage, Q2 conducts, Q1 is cut off, the field winding circuit is disconnected, and the output voltage drops. When it drops to equal the lower limit of the regulated voltage U1, the field winding circuit is reconnected, and the generator voltage rises. This cycle repeats continuously, controlling the generator's output voltage within a certain range.

[0029] like Figure 1 As shown: The F terminal is connected to the cathode of diode D3, the anode of diode D1, and the drain of MOSFET Q1. The anode of diode D3 is connected to the FR terminal. The cathode of diode D1 is connected to the D+ terminal and the cathode of diode D2. The anode of diode D2 is connected to the L terminal. The source of MOSFET Q1 is connected to the E terminal. The gate of MOSFET Q1 is connected to Zener diode ZD2 and capacitor C2.

[0030] The FR terminal, diode D3, and F terminal constitute the load feedback module. This load feedback module is the FR signal feedback circuit, which provides real-time feedback on the vehicle load. It sends the vehicle load to the ECU via a PWM (Pulse Width Modulation) signal. The ECU uses this terminal to monitor the generator status and the current system load in real time.

[0031] The N-channel MOSFET Q1 and the return diode D1 constitute the power transistor drive module. Q1 is connected in series with the generator's field winding and acts as a switch to connect and disconnect the generator's excitation current. When the field winding changes from the connected to the disconnected state, a discharge circuit is formed through D1 to prevent Q1 from being damaged by breakdown.

[0032] like Figure 1 As shown: The other ends of resistors R1 and R9 are connected to a common cathode diode D4. One anode of the common cathode diode D4 is connected to the S terminal, and the other anode is connected to resistor R4 and connected to the D+ terminal.

[0033] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A single-function C-terminal intelligent regulator, comprising a C-terminal, characterized in that: Resistors R9, R10, and R11 are connected to the C terminal. A transistor Q3 is connected between resistors R10 and R11. Resistors R1, R2, and R3 are connected to the collector of transistor Q3. A composite transistor Q2 is connected between resistors R1 and R2. The composite transistor Q2 is connected to a resistor R8 and a capacitor C3 and is connected to a terminal F. The terminal F is connected to the negative terminal of diode D3, the positive terminal of diode D1 and the drain of MOSFET Q1. The positive terminal of diode D3 is connected to a terminal FR.

2. The single-function C-terminal intelligent regulator according to claim 1, characterized in that: The negative terminal of diode D1 is connected to the D+ terminal and the negative terminal of diode D2, and the positive terminal of diode D2 is connected to the L terminal.

3. The single-function C-terminal intelligent regulator according to claim 1, characterized in that: The source of the MOS transistor Q1 is connected to the E terminal, and the gate of the MOS transistor Q1 is connected to the Zener diode ZD2 and the capacitor C2.

4. A single-function C-terminal intelligent regulator according to claim 1, characterized in that: The composite transistor Q2 is also connected to one end of resistors R5 and R7 respectively, and the other end of resistors R5 and R7 is connected to the B+ terminal.

5. A single-function C-terminal intelligent regulator according to claim 1, characterized in that: The other ends of resistors R1 and R9 are connected to a common cathode diode D4. One anode of the common cathode diode D4 is connected to the S terminal, and the other anode is connected to resistor R4 and connected to the D+ terminal.

6. A single-function C-terminal intelligent regulator according to claim 1, characterized in that: A Zener diode ZD1 is also connected to the composite transistor Q2.

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