48V storage battery-free regulator with P-end self-excitation function

Abstract

The utility model discloses a 48V storage battery-free regulator with a P-end self-excitation function, which comprises a voltage regulating module and an excitation module, and the excitation module is provided with an IG terminal and an F terminal. A generator rotor is connected between the IG terminal and the F terminal, and the IG terminal is connected with a 12-48V power supply or a P terminal of a generator. The 48V regulator provided by the utility model has the beneficial effects that the scheme of using discrete devices is provided, the realization is simple, the function is reliable, and the cost is lower; the regulator can be used for a system without a storage battery, a voltage regulating loop does not need to be connected with a refitted storage battery, electric energy can be directly output to supply power to electric equipment, the refitting cost of a vehicle can be reduced, and space is saved. The provided regulator improves the excitation module, can be suitable for excitation modes of various vehicles, is suitable for excitation of a 12V power supply, a 24V power supply and a 48V power supply, has a P-end self-excitation function, is high in expansibility, and is suitable for most modified vehicles.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of automobile regulator, concretely to a 48V batteryless regulator with P terminal self excitation function. BACKGROUND

[0002] At present, the use demand of vehicles such as motor homes and camping cars with high-power electrical load is increasing, but the ordinary 12V / 24V vehicle power supply system cannot meet its requirements. Therefore, the vehicle factory will modify the high-power vehicle and install a 48V generator system and a battery system. The application demand of 48V voltage regulator also increases, which can provide power for large vehicle electrical appliances.

[0003] The vehicle voltage regulator is used for the automobile generator and can stabilize the output voltage of the generator. It is mainly divided into a voltage regulating module and an excitation module. The main difficulty of the 48V regulator is how to distinguish the voltage regulating module and the excitation module of the regulator and can match the actual application of different vehicles. For different vehicle models, the 48V regulator has poor expandability due to different excitation methods. And because there are few types of existing 48V regulators on the market, the function is single, and the selectivity is less, so the procurement cost is generally high. The above situations will cause the following problems:

[0004] There are few types of 48V voltage regulators, less selectivity, and high cost;

[0005] The 48V regulator generally needs to be used with 4 12V batteries, which has high modification cost and occupies space in the vehicle;

[0006] The actual application of different vehicle models is different, the expandability of the 48V regulator is poor, and it is difficult to be universal.

[0007] Therefore, a 48V batteryless regulator with P terminal self excitation function is proposed. SUMMARY

[0008] The utility model aims at providing a 48V batteryless regulator with P terminal self excitation function, which can be used for vehicles with high-power electrical load such as motor homes and camping cars, provide power for them, at the same time, distinguish the excitation module and the voltage regulating module of the regulator, the excitation circuit can be applicable to 12V / 24V / 48V excitation method at the same time, in addition, the proposed regulator has P terminal self excitation function, can directly excite through P terminal, has strong expandability and is suitable for most modified vehicles, in addition, the proposed regulator can be used for batteryless system, that is, the voltage regulating module does not need to connect the modified battery and can directly output power to power the electrical equipment, which can reduce the modification cost of the vehicle and save space. The proposed regulator uses discrete device scheme, which is simple to realize, reliable in function, low in cost and can effectively solve the disadvantages of the current 48V regulator.

[0009] In order to realize the above-mentioned purpose, the utility model provides the following technical scheme:

[0010] A 48V batteryless regulator with P terminal self-excitation function, including voltage regulation module and excitation module, excitation module is equipped with IG terminal, F terminal;

[0011] IG terminal and F terminal are connected with electron emission rotor, IG end connects 12-48V power supply or generator P end.

[0012] Further, the voltage regulation module is composed of B+ terminal, resistance R1, resistance R2, triode Q2, triode Q3, voltage stabilizing tube ZD1;

[0013] B+ terminal connects resistance R1, resistance R1 connects resistance R2 and triode Q2, and resistance R2 connects triode Q4;

[0014] Triode Q2 connects voltage stabilizing tube ZD1, and voltage stabilizing tube ZD1 connects triode Q3;

[0015] Triode Q2 connects resistance R3, resistance R3 connects resistance R5, resistance R5 connects triode Q3 and triode Q5, triode Q5 connects resistance R8 and resistance R7, and resistance R7 connects triode Q4;

[0016] Resistance R8 connects excitation module;

[0017] Triode Q3 connects excitation module.

[0018] Further, the excitation module is composed of E terminal, MOS tube Q1 and diode D1;

[0019] E terminal connects MOS tube Q1, MOS tube Q1 connects triode Q3, and diode D1 connects resistance R8, IG terminal and F terminal;

[0020] F terminal connects MOS tube Q1.

[0021] Further, resistance R8 connects resistance R7.

[0022] Further, triode Q3 connects triode Q4 and resistance R2.

[0023] Further, P terminal connects resistance R6, and resistance R6 connects triode Q4.

[0024] Compared with prior art, the utility model has the beneficial effects that:

[0025] Propose a kind of 48V regulator, use the scheme of discrete device, simple, reliable function, lower cost is realized;

[0026] The proposed regulator can be used in a battery-free system, the voltage regulating loop does not need to be connected to a modified battery, can directly output electric energy to power the electric equipment, can reduce the modification cost of the vehicle, and saves space.

[0027] The proposed regulator improves the excitation module, can be suitable for excitation modes of various vehicles, is suitable for 12V power supply, 24V power supply and 48V power supply excitation, simultaneously has a P terminal self-excitation function, has strong expandability, and is suitable for most modified vehicles. BRIEF DESCRIPTION OF DRAWINGS

[0028] Figure 1 A 48V voltage regulator circuit schematic diagram is provided in the utility model.

[0029] Figure 2 A 48V voltage regulator peripheral application frame is provided in the utility model. Figure 1 ;

[0030] Figure 3 A 48V voltage regulator peripheral application frame is provided in the utility model. Figure 2 . DETAILED DESCRIPTION

[0031] The technical solutions in the embodiments of the utility model will be clearly and completely described in combination with the drawings in the embodiments of the utility model.

[0032] Embodiment 1

[0033] Referring to Figures 1-3 , the utility model provides a technical scheme:

[0034] A 48V battery-free regulator with a P terminal self-excitation function, comprising a voltage regulating module and an excitation module, the excitation module is provided with an IG terminal and an F terminal, a rotor is connected between the IG terminal and the F terminal, and the IG terminal is connected with a 12-48V power supply or a generator P terminal, wherein the voltage regulating module is composed of a B+ terminal, a resistor R1, a resistor R2, a triode Q2, a triode Q3 and a voltage stabilizing tube ZD1;

[0035] The B+ terminal is connected with the resistor R1, the resistor R1 is connected with the resistor R2 and the triode Q2, the resistor R2 is connected with the triode Q4, the triode Q2 is connected with the voltage stabilizing tube ZD1, the voltage stabilizing tube ZD1 is connected with the triode Q3, the triode Q2 is connected with the resistor R3, the resistor R3 is connected with the resistor R5, the resistor R5 is connected with the triode Q3 and the triode Q5, the triode Q5 is connected with the resistor R8 and the resistor R7, and the resistor R7 is connected with the triode Q4;

[0036] The excitation module is composed of an E terminal, a MOS tube Q1 and a diode D1.

[0037] Connect E terminal MOS tube Q1, MOS tube Q1 connects triode Q3, diode D1 connects resistance R8, IG terminal, F terminal, connect F terminal MOS tube Q1, connect resistance R8 resistance R7, connect triode Q3 triode Q4 and resistance R2;

[0038] Connect P terminal resistance R6, resistance R6 connects triode Q4.

[0039] Working principle:

[0040] The regulator is divided into voltage regulating module and excitation module, the voltage regulating module is composed of B+ terminal, resistance R1, R2, triode Q2, triode Q3, voltage stabilizing tube ZD1;The excitation module is composed of IG terminal, F terminal, E terminal, MOS tube Q1, diode D1;

[0041] Among them, the IG and F terminals are connected to the generator rotor, and the IG terminal can be connected to a 12 to 48V power supply (such as Figure 2 ) according to actual needs, or directly connected to one phase of the generator, namely P terminal (such as Figure 3 );

[0042] When the IG terminal is connected to the power supply, before the generator is rotated, the sensing signal P terminal has no induced voltage, the triode Q4 in the regulator is in the cut-off state, so the triode Q5 is in the cut-off state, the MOS tube Q1 gate is low, the MOS tube Q1 is cut off, and no excitation current passes through the generator rotor, preventing the generator from leaking electricity. After the generator is rotated, the sensing signal P terminal has an induced voltage, the triode Q4 is turned on, the triode Q5 is turned on, the MOS tube Q1 gate becomes high, the MOS tube Q1 is turned on, and the excitation current starts to flow through the generator rotor, and the generator starts to generate electricity. When the generator B+ terminal voltage is greater than the set voltage (such as 56V), the triode Q2, triode Q3 and voltage stabilizing tube ZD1 are turned on, the triode Q3 pulls down the gate potential of the MOS tube Q1, the MOS tube Q1 is cut off, and the excitation current on the rotor is cut off, the generator output voltage is reduced;When the B+ terminal voltage is reduced to below 56V, the triode Q2, triode Q3 and voltage stabilizing tube ZD1 are cut off, the MOS tube Q1 gate becomes high, the MOS tube Q1 is turned on, the excitation current is passed through the rotor, and the generator output voltage is increased, so as to cycle repeatedly, ensuring that the generator B+ output voltage is around 56V.

[0043] When the IG terminal is connected to the generator sensing signal P terminal, no additional power supply is needed, and the generator can generate electricity normally after it is rotated. After the generator is rotated, the P terminal induces a voltage, which drives the triode Q4 to start the regulator and excites the rotor at the same time as when the IG terminal is connected to the power supply.

[0044] Although the embodiments of the present application have been shown and described, it is to be understood that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A 48V battery-free regulator with P-terminal self-excitation function, characterized by: It includes a voltage regulating module and an excitation module. The excitation module is provided with an IG terminal and an F terminal. The generator rotor is connected between the IG terminal and the F terminal, and the IG terminal is connected to the 12-48V power supply or the generator P terminal.

2. The 48V battery-free regulator with P-terminal self-excitation function according to claim 1, characterized in that: The voltage regulating module consists of B+ terminal, resistor R1, resistor R2, transistor Q2, transistor Q3, and voltage regulator ZD1; The B+ terminal is connected to the resistor R1, the resistor R1 is connected to the resistor R2 and the transistor Q2, and the resistor R2 is connected to the transistor Q4; Transistor Q2 is connected to voltage regulator ZD1, and voltage regulator ZD1 is connected to transistor Q3; Transistor Q2 is connected to resistor R3, resistor R3 is connected to resistor R5, resistor R5 is connected to transistor Q3 and transistor Q5, transistor Q5 is connected to resistor R8 and resistor R7, and resistor R7 is connected to transistor Q4; Resistor R8 is connected to the excitation module; Transistor Q3 is connected to the excitation module.

3. The 48V battery-free regulator with P-terminal self-excitation function according to claim 2, characterized in that: The excitation module consists of E terminal, MOS tube Q1, and diode D1; The E terminal is connected to the MOS transistor Q1, the MOS transistor Q1 is connected to the transistor Q3, and the diode D1 is connected to the resistor R8, the IG terminal, and the F terminal; The F terminal is connected to the MOS tube Q1.

4. The 48V battery-free regulator with P-terminal self-excitation function according to claim 2, characterized in that: Resistor R8 is connected to resistor R7.

5. The 48V battery-free regulator with P-terminal self-excitation function according to claim 2, characterized in that: The transistor Q3 is connected to the transistor Q4 and the resistor R2.

6. The 48V battery-free regulator with P-terminal self-excitation function according to claim 5, characterized in that: The P terminal is connected to the resistor R6, and the resistor R6 is connected to the transistor Q4.

Images