CN202772829U - Automobile generator voltage adjusting device - Google Patents
Automobile generator voltage adjusting device Download PDFInfo
- Publication number
- CN202772829U CN202772829U CN 201220470597 CN201220470597U CN202772829U CN 202772829 U CN202772829 U CN 202772829U CN 201220470597 CN201220470597 CN 201220470597 CN 201220470597 U CN201220470597 U CN 201220470597U CN 202772829 U CN202772829 U CN 202772829U
- Authority
- CN
- China
- Prior art keywords
- circuit
- wire
- output
- input
- voltage
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Landscapes
- Control Of Eletrric Generators (AREA)
Abstract
The utility model discloses an automobile generator voltage adjusting device. The automobile generator voltage adjusting device comprises that: a power supply module is connected with a digital analog converter, a soft start circuit, a safety protection circuit, an indication lamp driving circuit and an excitation driving circuit; a system clock is connected with a counter; the counter is connected with the digital analog converter and a pulse generator; the digital analog converter is connected with a comparator; a sampling circuit is connected with a filter circuit; the filter circuit is connected with the comparator; the soft start circuit and the comparator are connected with a logic circuit; a phase processing and frequency detection circuit is connected with the soft start circuit and an error detection circuit; the pulse generator is connected with an RS trigger and the soft start circuit; the RS trigger is connected with the logic circuit; the safety protection circuit is connected with the logic circuit and the error detection circuit; the logic circuit is connected with the excitation driving circuit; the excitation driving circuit is connected with an power tube and a freewheeling diode; and an overheating protection circuit is connected with the error detection circuit and the logic circuit. Problems of out-of-control phenomena such as over generation voltage or generation interruption caused by no motor rotation, excitation circuit break, sudden increasing or decreasing load, and the like are settled, the problems may cause safety problems of operation of generation equipment, electric equipment or automobiles.
Description
Technical field
The utility model belongs to the automotive control circuit technical field, relates in particular to a kind of automobile current generator voltage regulating device.
Background technology
The rotor of AC generator for vehicle is rotated by belt drives by engine, and the rotating ratio of engine and alternating current generator is 1.7～3, therefore the rotation speed change scope of alternator rotor is very large, to cause like this output voltage of generator to occur to change in a big way, can't satisfy the job requirement of automobile electrical equipment.In order to satisfy the requirement of power consumption equipment constant voltage, the necessary adapted voltage regulator of alternating current generator makes the basic maintenance under engine all working situation of its output voltage constant.The function of adjuster is when generator speed changes, automatic regulator generator output voltage, make its not because of generator speed when high overtension burn out power consumption equipment and cause overcharge of a battery; Can not cause power consumption equipment work not normal because of the low undertension of generator speed yet.Its voltage-regulation principle is: when generator speed raise, adjuster reduced magnetic flux by reducing exciter current of generator, and the output voltage of generator is remained unchanged; When the rotating speed of generator reduced, adjuster increased magnetic flux by the exciting current that increases generator, and the output voltage of generator is remained unchanged.Because the operational environment of automobile generating system is very abominable, correspondingly, also very high to the performance requirement as the voltage regulator of automobile power system heart component, except requiring to have the good voltage-regulation performance, also have many special requirements, such as strong resistance to vibration, wide operating temperature range (approximately-40 ℃～175 ℃), resistance to chemical attack and can bear pulse shock that high pressure, heavy current impact and igniting under overload state cause etc.
At present; although popular voltage regulator has good voltage-regulation performance and some defencive functions on the market; but; because some faults in the automobile generating system; as generator do not rotate, excitation opens circuit or short circuit, uprush or prominent with heavy load etc.; this will cause the too high or out-of-control phenomenon such as generating interruption etc. of generating voltage, and the result will injure generating equipment, power consumption equipment, even the safety of automobilism.Therefore require voltage regulator to have the electricity generation system working condition is detected and suitably processes and do not cause excessive burden function to electricity generation system, present voltage regulator for automobile does not on the market possess these functions.
Summary of the invention
The technical problems to be solved in the utility model: a kind of automobile current generator voltage regulating device is provided, not have to rotate to solve generator, excitation opens circuit or short circuit, uprush or generating voltage that bust load etc. causes is too high or the out-of-control phenomenon such as the interruption of generating electricity, what cause is critical to generating equipment, power consumption equipment, even the safety problem of automobilism.
Technical solutions of the utility model:
A kind of automobile current generator voltage regulating device, it comprises:
Power module provides control voltage, is connected with digital to analog converter, soft starting circuit, safety protective circuit, drive circuit of indicator and excitation drive circuit wire;
System clock provides clock signal, is connected by wire with counter;
Counter provides the five digit number count signal, is connected wire with digital to analog converter with pulse generator and is connected;
Digital to analog converter changes the digital output signal of counter into analog signals, and this analog signals is delivered to comparator, is connected by wire with comparator;
Sample circuit is sampled to the output voltage of generator by Voltage Feedback, is connected by wire with filter circuit;
Filter circuit carries out low-pass filtering to the sampled signal of sample circuit, and filtering signal is delivered to comparator, is connected by wire with comparator;
Comparator compares the analog signals of digital to analog converter conversion and the filtering signal of filter circuit output, and controlled signal is connected by wire with logical circuit;
Phase Processing and frequency detection circuit, Phase Processing is the input according to the motor phase voltage, the sine wave signal of generator output is converted to square-wave signal, and frequency detection circuit is used for the phase voltage frequency of input is detected, and is connected wire with soft starting circuit with error detect circuit and is connected;
Soft starting circuit, according to the output signal of Phase Processing and frequency detection circuit and pulse generator, provide the pre-excitation function and the startup stage realize being connected soft start function by wire with logical circuit;
Pulse generator, by the input pulse signal that counter provides, output incision frequency and excitation frequency are connected wire with rest-set flip-flop with soft starting circuit and are connected;
Rest-set flip-flop, the frequency signal by pulse generator output produces a pulsed excitation signal, is connected by wire with logical circuit;
Safety protective circuit to voltage regulator overcurrent, overvoltage, high pressure warning, low pressure warning and under-voltage the protection, is connected wire with logical circuit with error detect circuit and is connected;
Logical circuit, output excitation duty ratio and driving indicator light transistor are connected by wire with the excitation drive circuit;
The excitation drive circuit drives the exciting power pipe, is connected by wire with exciting power pipe and fly-wheel diode;
Overheating protection circuit carries out temperature protection to indicator light transistor and adjuster integrated circuit, is connected wire with error detect circuit with logical circuit and is connected.
Described a kind of automobile current generator voltage regulating device, it also comprises:
Error detect circuit, input message according to safety protective circuit, overheating protection circuit and Phase Processing and frequency detection circuit, to the voltage regulator overvoltage, under-voltage, excitation opens circuit, short circuit, generator operating state detect, be connected by wire with drive circuit of indicator;
Drive circuit of indicator according to the output information of error detect circuit, drives corresponding indicator light bright, is connected by wire with the indicator light output circuit;
The indicator light output circuit according to the output signal of drive circuit of indicator, triggers corresponding indicator light.
Power module comprises PTAT current generating circuit, voltage lifting circuit, heavy current feedback circuit, double current feedback circuit and an out drive stage, the PTAT current generating circuit is connected with voltage lifting circuit, one heavy current feedback circuit is connected with the reference current end with the PTAT current generating circuit, the two-fold current feedback circuit is connected between the output of input power and voltage lifting circuit, and the output of voltage lifting circuit is connected to the input of drive circuit.
Comparator comprises the difference input to pipe and common-source amplifier, and the difference input is connected with the common-source amplifier wire pipe.
Soft starting circuit comprises:
Frequency detection circuit, for the operating state of judging current soft starting circuit, the frequency detection circuit input is connected with the output of pulse generator, and the frequency detection circuit output is connected with the reset terminal of the second counter circuit.
The second counter circuit, for the second D/A converting circuit provides input signal, the second counter circuit and duty detection circuit be connected D/A converting circuit and be connected, the count pulse input is connected with system clock.
The second D/A converting circuit, for generation of soft start voltage, the input of the second D/A converting circuit is connected with the output of the second counter circuit, and the output of the second D/A converting circuit is connected with the input of the second comparator circuit.
Duty detection circuit, for detection of the duty ratio in each excitation cycle, the output of duty detection circuit is connected with the several inputs of putting of the second counter circuit respectively.
The second comparator circuit is used for the sawtooth voltage that softer starting resistor and the second digital to analog converter are exported, and obtains the soft start control signal that duty ratio increases gradually.
The utility model beneficial effect:
The utility model is realized the slope compensation circuit of PWM modulation according to digital to analog converter, to improve generator output voltage stability and adjuster load regulation; After automobile key switch places ON, before car engine, generator does not rotate, duty ratio of pre-excitation circuit generation is 17% square wave driving excitation transistor work, alleviate generator to the load effect of engine, guarantee that automobile can smooth starting, in vehicle traveling process, judge by Phase Processing and frequency detection circuit whether automobile current generator works, if detect phase voltage and be zero, detect simultaneously the excitation transistor and overcurrent do not occur, illustrate that then generator does not rotate or excitation opens circuit, at this moment provide power supply by storage battery to car load, the excitation signal Duty ratio control is found when starting automobile next time and keeps in repair to address this problem in minimum value; If the excitation short circuit occurs, current foldback circuit can detect excitation transistor overcurrent, at this moment with the excitation signal Duty ratio control in minimum value, guarantee to avoid excitation transistor seal overcurrent when generator can normal power generation and to damage.
In vehicle traveling process, especially when low speed driving, uprush or the bust heavy load can cause that all generator output voltage has than great fluctuation process.At this moment sample circuit detects the B+ terminal voltage has than great fluctuation process, if fluctuation has exceeded the protection range that sets, then soft starting circuit (or soft breaking circuit) starts, make the excitation signal duty ratio progressively increase (or progressively reducing), avoid because the sudden change of excitation signal duty ratio causes larger mechanical torque to engine, thereby guarantee the operation of car load safety and steady; Error detect circuit of the present utility model, drive circuit of indicator and indicator light output circuit detect in real time mistake and export by indicator light, handled easily personnel check, the utility model has solved automobile current generator not to be had to rotate, excitation opens circuit or short circuit, uprush or generating voltage that bust load etc. causes is too high or the out-of-control phenomenon such as generating interruption, what cause is critical to generating equipment, power consumption equipment, even the safety problem of automobilism.
Description of drawings:
Fig. 1 is the utility model block diagram of system;
Fig. 2 is that soft start circuit module of the present utility model forms schematic diagram;
Fig. 3 is the utility model circuit connection schematic diagram.
Embodiment:
A kind of automobile current generator voltage regulating device, it comprises (see figure 1):
1. power module, power module is a reference source of output more than one, output voltage is DC5V, 2.5V and the reference voltage of 3.5V, it comprises the PTAT current generating circuit, voltage lifting circuit, dual current feedback circuit and out drive stage, the PTAT current generating circuit is connected with voltage lifting circuit, one heavy current feedback circuit is connected with the reference current end with the PTAT current generating circuit, the two-fold current feedback circuit is connected between the output of input power and voltage lifting circuit, the output of voltage lifting circuit is connected to the input of drive circuit, the PTAT electric current that the PTAT current generating circuit the produces voltage lifting circuit of flowing through is raised reference voltage value, simultaneously reference voltage is carried out temperature-compensating.One heavy current feedback circuit sampling PTAT electric current and reference current compare, and carry out negative feedback control with the error current amplification and to reference voltage value.The two-fold current feedback circuit is connected between the output of input power and voltage lifting circuit, flow through the total current of PTAT current generating circuit, voltage lifting circuit and a heavy current feedback circuit by negative feedback control, thereby improve the reference precision in the wide power voltage range.The output of voltage lifting circuit is connected to the input of drive circuit, is distributed the reference voltage value that needs by drive circuit, determines simultaneously the driving force of output reference.Its function is: 1, provide the 5V supply voltage for each functional module; 2, the output voltage for digital to analog converter provides the 2.5V side-play amount; for the circuit such as soft starting circuit, safety protective circuit, drive circuit of indicator and excitation drive circuit provide corresponding reference voltage, realize corresponding control function.
System clock provides clock signal, is connected by wire with counter, and system clock adopts the circuit structure of the constant current charge-discharge that is made of two voltage comparators.Constant-current generating circuit comprises technological compensa tion level and PTAT voltage compensation level.
Thereby realize technological compensa tion and temperature-compensating.The grid of the metal-oxide-semiconductor in generation current source and source electrode are connected respectively to the resistance two ends on the current source branch in the PTAT voltage compensation level in the technological compensa tion level.The function of system clock is: 1, determine the incision rotating speed of generator, melt different wires and can change clock frequency, thereby change the incision rotating speed; 2, count pulse is provided for D/A module section counter; 3, provide clock signal to soft starting circuit.The incision rotating speed of designed generator is respectively 1800rpm, 1400rpm, 1350rpm and 900rpm, then corresponding clock frequency is respectively 5.76kHz, 4.48kHz, 4.32kHz and 2.88kHz, generator incision frequency, excitation frequency and adjuster trigger rate equate, are respectively 180Hz, 140Hz, 135Hz and 90HZ.
Counter, the five digit number count signal is provided, is connected wire with digital to analog converter with pulse generator and is connected, counter adopts five subtract counters to consist of, the driving of subtract counter is driven by clock signal of system, and each step is exactly the duty cycle of an adjuster.
Digital to analog converter, change the digital output signal of counter into analog signals, and this analog signals delivered to comparator, and being connected by wire with comparator, digital to analog converter comprises overlapping resistor string, analog switch, three lines-eight line decoder and two wires-four line decoder.The output of counter is connected respectively to three lines-eight line decoder and two wires-four line decoder input, and reference voltage DC2.5V and the 3.5V of power module output are connected on respectively overlapping resistor string two ends.
Sample circuit is sampled to the output voltage of generator by Voltage Feedback, improves the adjuster load regulation.Because voltage mode control is directly from the output sampled signal, the variation of load increase and decrease can in time be reacted to the PWM controller, thereby can adjust soon the duty ratio of pulse, is connected by wire with filter circuit.
Filter circuit carries out low-pass filtering to the sampled signal of sample circuit, provides the sawtooth waveforms of a clean signal and analog to digital converter output to compare through comparator, is connected by wire with comparator.
Comparator compares controlled signal with the analog signals of digital to analog converter conversion and the filtering signal of filter circuit output, be connected by wire with logical circuit, comparator adopts two-stage to consist of, and the first order adopts the NMOS pipe to input pipe as difference, and common-source amplifier is adopted in the second level.
Phase Processing and frequency detection circuit, Phase Processing and frequency detecting, the Phase Processing circuit is converted to square-wave voltage to the sine voltage of generator output according to the input of phase voltage, provides digital signal to frequency detection circuit and error detect circuit.Frequency detection circuit is used for the phase voltage frequency is measured, and its function is: 1, when the phase voltage frequency was lower than position at ON of one times of incision speed-frequency and key switch, adjuster was in the pre-excitation state, otherwise adjuster withdraws from the pre-excitation state; If 2 phase voltage frequencies are greater than 2 times of incision speed-frequencies, when load increased, duty ratio did not increase not delay at once, and when load reduced, soft value-added tax function was inoperative; 3, to the detection of generator phase shortage; Phase Processing and frequency detection circuit comprise a 2-bit counter, delay circuit, latch, inverter and form with door.The 2-bit counter is by two d type flip flop cell formations that can reset and keep, the high position of counter is delivered to an input with door behind inverter, the low level of counter is delivered to another input with door, be linked to the input of latch with the output of door, delay circuit is connected to the RESET input of this module and two and can resets between two reset terminals of the d type flip flop unit that keeps.
Soft starting circuit, according to the output signal of Phase Processing and frequency detection circuit and pulse generator, provide the pre-excitation function and the startup stage realize being connected soft start function by wire with logical circuit.
Soft starting circuit comprises (Fig. 2): frequency detection circuit, be used for judging the operating state of current soft starting circuit, the frequency detection circuit input is connected with the output of pulse generator, the frequency detection circuit output is connected with the reset terminal of the second counter circuit, and the reference frequency pulse input end connects the narrow pulse signal that frequency is 1/2 times of incision speed-frequency.The signal of phase place input termination pulse generator is as count pulse.
The second counter circuit, for the second D/A converting circuit provides input signal, the second counter circuit and duty detection circuit be connected D/A converting circuit and be connected, the count pulse input of the second counter circuit is connected with system clock, five inputs that five outputs of the second counter circuit are corresponding with the second D/A converting circuit connect, its count pulse input is connected with the count pulse of control soft-start time, puts the number end and is connected with the output of duty detection circuit respectively for five of the second counter circuit.
The second D/A converting circuit, for generation of soft start voltage, the input of the second D/A converting circuit is connected with the output of the second counter circuit, and the output of the second D/A converting circuit is connected with the input of the second comparator circuit.Two input reference ends of the second D/A converting circuit connect respectively 3.5V and 2.5V reference voltage, with the upper voltage limit and the lower voltage limit that decide soft start voltage.Five data outputs of five data inputs and the second counter circuit are corresponding to link to each other, and the output of the second D/A converting circuit is connected with an input of comparator circuit.
Duty detection circuit, duty ratio for detection of each excitation cycle, the output of duty detection circuit is connected with the several inputs of putting of the second counter circuit respectively, five outputs of duty detection circuit are connected with the several inputs of putting of the second counter circuit respectively, the level of the output level of latch signal end and the pwm control circuit of system after oppositely is connected, and latch signal is provided and provides reset signal by delay circuit.
The second comparator circuit is used for the sawtooth voltage that softer starting resistor and the second digital to analog converter are exported, and obtains the soft start control signal that duty ratio increases gradually.
The soft starting circuit principle is the soft start voltage that the Output rusults of digital control the second D/A converting circuit of employing obtains to rise on the slope, then by the sawtooth voltage of the digital to analog converter output of soft start voltage and main circuit part is compared, thereby obtain the conducting that control signal that a duty ratio increases is gradually come the control switch pipe, reach the purpose of soft start.
Pulse generator, the input pulse signal that provides by counter, output incision frequency and excitation frequency, being connected wire with rest-set flip-flop with soft starting circuit is connected, the function of this module is: 1, in the cycle of the duty ratio of each counter, producing a duty ratio is that 3.125% narrow pulse signal is arranged on ON by the excitation transistor in the zero hour in each excitation cycle, and the frequency of this triggering equals to cut frequency and excitation frequency; Pulse generator comprises some logic gates and latch cicuit, and the different outputs of logic gates network connection counter produce the square-wave signal of certain duty ratio, this square-wave signal is delivered in the latch latched again.
2, when adjuster is in the situation such as overheated, provide a minimum 6.25% excitation duty ratio.
Rest-set flip-flop, the frequency signal by pulse generator output produces a pulsed excitation signal, is connected by wire with logical circuit; Its function is: 1, in each duty cycle at first, produce a pulse signal excitation transistor state is set to ON, until comparator output level when upset is set to OFF with excitation transistor state; 2, when being in pre-excitation, provide 29% excitation duty ratio; 3, when being in soft start and soft loading mode, the excitation duty ratio increases on original basis gradually; 4, when adjuster is in the situation such as overheated, provide a minimum 6.25% excitation duty ratio.
Safety protective circuit to voltage regulator overcurrent, overvoltage, high pressure warning, low pressure warning and under-voltage the protection, is connected wire with logical circuit with error detect circuit and is connected; Safety protective circuit mainly comprises overcurrent, overvoltage, high pressure warning, low pressure warning and under-voltage protection; 1, current foldback circuit adopts the senseFET structure; because the exciting power tube current is very large; can not directly sample with resistance, so adopt senseFET to take a sample as the proportion current source of exciting power pipe, be that voltage method realizes by the resistance sampling current conversion.2, overvoltage protection adopts classical overvoltage crowbar structure, and when voltage was elevated to 1.5 times of regulation voltages, voltage stabilizing didoe was breakdown, the triode conducting, and the output high level carries out the overvoltage protection control signal.3, high pressure warning, the high pressure acknowledge circuit mainly is made of sample resistance, comparator and delay circuit.4, low pressure warning, the low pressure acknowledge circuit mainly is made of sample resistance, comparator, delay circuit and two AND circuit.5, under-voltage protection, under-voltage protecting circuit mainly are made of sample resistance, comparator and two AND circuit.
Logical circuit, output excitation duty ratio and driving indicator light transistor are connected by wire with the excitation drive circuit; Logical circuit is made of some gate circuits, various control signals is carried out logical operation realize the transistorized reasonable control of excitation.
The excitation drive circuit drives the exciting power pipe, is connected by wire with exciting power pipe and fly-wheel diode; Excitation drive circuit and drive circuit of indicator are all realized Dead Time control by DC2.5V reference voltage and two comparators, adopt resistance and voltage-stabiliser tube that exciting power pipe input circuit is protected at output.The excitation drive circuit comprises that Dead Time produces circuit, logic control circuit, push-pull output stage formation, Dead Time produces take a sample the respectively grid potential of two metal-oxide-semiconductors of push-pull output stage of circuit, compare with reference voltage, logic control circuit carries out logical operation to the output signal of output signal and Dead Time generation circuit and realizes Dead Time control, and push-pull output stage is determined the size of drive current.
Overheating protection circuit carries out temperature protection to indicator light transistor and adjuster integrated circuit, is connected by wire with error detect circuit; Overheating protection circuit comprises that temperature sensing circuit, level produce circuit, waveform shaping circuit, hysteresis control circuit composition.Come the variation of probe temperature with the variation of the BE of NPN pipe knot cut-in voltage, and by the variation of resistor network with the variation conversion certain voltage value of temperature, level produces circuit and is realized by the one-level grounded emitter circuit, waveform shaping circuit is made of three grades of inverters, sluggish control by a NMOS pipe with in output sampling degree of the rising again testing circuit of penultimate stage inverter and consist of positive feedback and realize.
Error detect circuit, input message according to safety protective circuit, overheating protection circuit and Phase Processing and frequency detection circuit, to the voltage regulator overvoltage, under-voltage, excitation opens circuit, short circuit, generator operating state detect, be connected by wire with drive circuit of indicator; Error detect circuit comprises one five NOR gate, and its five inputs are received respectively frequency detecting output, current foldback circuit output, overvoltage crowbar output, under-voltage protecting circuit output, overheating protection circuit output.
Drive circuit of indicator according to the output information of error detect circuit, drives corresponding indicator light bright, is connected by wire with the indicator light output circuit; The structure of drive circuit of indicator is the same with the excitation drive circuit, and difference only is that the drive current that push-pull output stage provides is much smaller.
The indicator light output circuit according to the output signal of drive circuit of indicator, triggers corresponding indicator light.
Further specify below in conjunction with 3 pairs of the utility model of accompanying drawing:
Power module: it includes an input Vin, and three output V_5V, V_3.5V, V_2.5V export respectively the reference voltage of DC5V, 3.5V, 2.5V, and V_5V receives the power input Vdd that receives respectively the modules circuit; V_3.5V receives the 3.5V input of digital to analog converter and soft starting circuit; V_2.5V receives respectively the 2.5V benchmark input end R25 of 2.5V input, safety protective circuit, excitation drive circuit and the drive circuit of indicator of digital to analog converter, module soft starting circuit.
Digital to analog converter: comprise benchmark input end 2.5V, 3.5V, data input pin Q1-Q5, output OUT.2.5V, corresponding V_2.5V, V_3.5V output is connected in 3.5V input and the power module; Data input pin Q1-Q5 is connected with the data output end Q1-Q5 of counter; Output OUT be connected to the reverse input end of comparator-.
Counter: it comprises a pulse input end CP and five-digit number according to output Q1-Q5.The output terminal of clock OUT of pulse input end CP and system clock is connected; Data output end Q1-Q5 is connected the corresponding connection of input Q1-Q5 with the data input pin Q1-Q5 of digital to analog converter respectively with pulse generator.
System clock: comprise an output terminal of clock OUT.The input of this module is its power end Vdd, is connected with the V_5V end of power module.
Sample circuit: comprise an input and an output OUT.Input Vin is connected to the B+ end of automobile current generator system; Output OUT is connected to the input Vin of filter circuit.
Filter circuit: include input Vin and output OUT.Input Vin is connected to the OUT end of sample circuit; Output OUT be connected to the in the same way input of comparator+.
Pulse generator: comprise data input pin Q1-Q5, output OUT1, OUT2.The corresponding connection of input Q1-Q5 of its input Q1-Q5 and digital to analog converter; Output OUT1 is connected to the minimum duty cycle signal input part LD of logical circuit; Output OUT2 is connected to the CP end of soft starting circuit and the R end of rest-set flip-flop.
Comparator: comprise in the same way input+, reverse input end-, output OUT.Input+link to each other with the OUT of filter circuit end in the same way; Reverse input end-link to each other with the OUT end of digital to analog converter; Comparator output terminal OUT end links to each other with the PWM_in end of logical circuit.
Rest-set flip-flop: comprise input R, S, output OUT.Its input R is connected with the output OUT2 of pulse generator and the CP end of soft starting circuit; The S end links to each other with the PWM_out end of logical circuit; The OUT end of rest-set flip-flop is connected to the excitation signal input D of logical circuit.
Overheating protection circuit: it comprises an excess temperature output Tout, and the input of this module is its power input Vdd, and excess temperature output Tout is connected to the excess temperature test side TR of error detect circuit and the excess temperature control end T of logical circuit.
Safety protective circuit: it comprises 2.5V benchmark input end R25, overcurrent output C_out, overvoltage output HV_out, under-voltage output LV_out.Overcurrent output C_out end is connected to the over-current detection end CR of error detect circuit and the overcurrent control end C of logical circuit; Overvoltage output HV_out end is connected to the overvoltage test side HVR of error detect circuit and the overvoltage control end HV of logical circuit; Under-voltage output LV_out end is connected to the under-voltage test side LVR of error detect circuit and the under-voltage control end LV of logical circuit.
Soft starting circuit: include benchmark input end 2.5V, 3.5V, input end of clock CP, pwm signal duty ratio test side Duty_detect, load feedback control test side LRC, phase-detection end phase, output OUT; The OUT2 end of input end of clock CP end and pulse generator and the R end of rest-set flip-flop are connected; The OUT end of pwm signal duty ratio test side Duty_detect and rest-set flip-flop links to each other; The B+ end of load feedback control test side LRC and automobile current generator system links to each other; Phase-detection end phase end and Phase Processing and frequency detection circuit phase signal conversion output P_out link to each other; Output OUT end is connected with the soft start input soft of logical circuit.
Phase Processing and frequency detection circuit: comprise phase signal input Ph1, phase signal conversion output P_out, phase signal frequency detecting end FP.The Ph1 end connects any phase stator winding of generator; Phase signal conversion output P_out is connected to the phase end of soft starting circuit; Phase signal frequency detecting end FP end is connected to the phase signal error detection end P_detect of error detect circuit.
Error detect circuit: comprise excess temperature test side TR, over-current detection end CR, overvoltage test side HVR, under-voltage test side LVR, phase signal error detection end P_detect, output OUT.TR end in its excess temperature test side is connected to the Tout end of overheating protection circuit and the T end of logical circuit; The CR end is connected to the C_out end of safety protective circuit and the C end of logical circuit; The HVR end is connected to the HV_out end of safety protective circuit and the HV end of logical circuit; The LVR end is connected to the LV_out end of safety protective circuit and the LV end of logical circuit; The OUT end is connected to the Vin end of drive circuit of indicator.
Logical circuit: comprise pwm signal input PWM_in, soft-start signal input soft, excitation signal input D, minimum duty cycle signal input part LD, excess temperature control end T, overcurrent control end C, overvoltage control end HV, under-voltage control end LV, output OUT.Its PWM_in end links to each other with the OUT end of comparator; The soft end links to each other with the OUT end of soft starting circuit; The D end links to each other with the OUT end of rest-set flip-flop; The LD end links to each other with the OUT1 end of pulse generator; The T end links to each other with the Tout end of overheating protection circuit and the TR end of error detect circuit; The C end links to each other with the C_out end of safety protective circuit and the CR end of error detect circuit; The HV end links to each other with the HV_out end of safety protective circuit and the HVR end of error detect circuit; The LV end links to each other with the LV_out of safety protective circuit and the LVR end of error detect circuit; The OUT end links to each other with the Vin end of excitation drive circuit.
Excitation drive circuit: comprise excitation signal input Vin, excitation transistor driving signal output part OUT.Its Vin end is connected with the OUT end of logical circuit; The OUT end is connected with the grid G of exciting power pipe and fly-wheel diode.
Drive circuit of indicator: comprise indicator light signal input part Vin, indicator light transistor driving signal output part OUT.The Vin end is connected with the OUT end of error detect circuit; The OUT end is connected with the grid G of indicator light output circuit.
Exciting power pipe and fly-wheel diode: the transistorized grid G of excitation is connected to the OUT end of excitation drive circuit; The transistorized drain D of excitation is received the excitation end F of automobile current generator system; The transistorized source S of excitation is received the bonding end E of automobile current generator system; The negative pole of fly-wheel diode is connected to the cathode output end B+ of automobile current generator system.
The indicator light output circuit: the grid G of indicator light output circuit is connected to the OUT end of drive circuit of indicator; The drain D of indicator light output circuit is connected to the indicator light link L of automobile current generator system; The source S of indicator light output circuit is connected to the bonding end E of automobile current generator system.
Claims (5)
1. automobile current generator voltage regulating device, it comprises: power module, power module is connected with digital to analog converter, soft starting circuit, safety protective circuit, drive circuit of indicator and excitation drive circuit wire; It is characterized in that: system clock is connected by wire with counter; counter is connected wire with digital to analog converter with pulse generator and is connected; digital to analog converter is connected by wire with comparator; sample circuit is connected by wire with filter circuit; filter circuit is connected by wire with comparator; comparator is connected by wire with logical circuit; Phase Processing is connected wire with soft starting circuit with error detect circuit with frequency detection circuit and is connected; soft starting circuit is connected by wire with logical circuit; pulse generator is connected wire with rest-set flip-flop with soft starting circuit and is connected; rest-set flip-flop is connected by wire with logical circuit; safety protective circuit is connected wire with logical circuit with error detect circuit and is connected; logical circuit is connected by wire with the excitation drive circuit; the excitation drive circuit is connected by wire with exciting power pipe and fly-wheel diode, and overheating protection circuit is connected wire with error detect circuit with logical circuit and is connected.
2. a kind of automobile current generator voltage regulating device according to claim 1 is characterized in that it also comprises: error detect circuit, be connected by wire with drive circuit of indicator, and drive circuit of indicator is connected by wire with the indicator light output circuit.
3. a kind of automobile current generator voltage regulating device according to claim 1, it is characterized in that: power module comprises PTAT current generating circuit, voltage lifting circuit, heavy current feedback circuit, double current feedback circuit and an out drive stage, the PTAT current generating circuit is connected with voltage lifting circuit, one heavy current feedback circuit is connected with the reference current end with the PTAT current generating circuit, the two-fold current feedback circuit is connected between the output of input power and voltage lifting circuit, and the output of voltage lifting circuit is connected to the input of drive circuit.
4. a kind of automobile current generator voltage regulating device according to claim 1 is characterized in that: comparator comprises the difference input to pipe and common-source amplifier, and the difference input is connected with the common-source amplifier wire pipe.
5. a kind of automobile current generator voltage regulating device according to claim 1, it is characterized in that: soft starting circuit comprises: frequency detection circuit, the frequency detection circuit output is connected with the reset terminal of the second counter circuit, the second counter circuit and duty detection circuit be connected D/A converting circuit and be connected, the count pulse input of the second counter circuit is connected with system clock, the input of the second D/A converting circuit is connected with the output of the second counter circuit, and the output of the second D/A converting circuit is connected with the input of the second comparator circuit; The output of duty detection circuit is connected with the several inputs of putting of the second counter circuit respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220470597 CN202772829U (en) | 2012-09-17 | 2012-09-17 | Automobile generator voltage adjusting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220470597 CN202772829U (en) | 2012-09-17 | 2012-09-17 | Automobile generator voltage adjusting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202772829U true CN202772829U (en) | 2013-03-06 |
Family
ID=47779371
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220470597 Expired - Fee Related CN202772829U (en) | 2012-09-17 | 2012-09-17 | Automobile generator voltage adjusting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202772829U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103684161A (en) * | 2013-12-27 | 2014-03-26 | 南昌康富电机技术有限公司 | High-efficiency excitation generator automatic voltage regulator |
| CN104796057A (en) * | 2015-05-16 | 2015-07-22 | 意昂神州（北京）科技有限公司 | Intelligent voltage regulator |
| TWI501542B (en) * | 2014-06-16 | 2015-09-21 | ||
| CN105071724A (en) * | 2015-08-10 | 2015-11-18 | 北京佩特来电器有限公司 | Electronic voltage regulator, AC generator and engine idle speed control method |
| CN105814445A (en) * | 2013-12-09 | 2016-07-27 | 罗伯特·博世有限公司 | Method for transferring a minimum and/or a maximum value of a battery system parameter and battery system for carrying out such a method |
| US10819136B2 (en) | 2019-02-15 | 2020-10-27 | Ford Global Technologies, Llc | System and method of adaptive high voltage transient control for external loads |
-
2012
- 2012-09-17 CN CN 201220470597 patent/CN202772829U/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105814445A (en) * | 2013-12-09 | 2016-07-27 | 罗伯特·博世有限公司 | Method for transferring a minimum and/or a maximum value of a battery system parameter and battery system for carrying out such a method |
| CN105814445B (en) * | 2013-12-09 | 2019-01-15 | 罗伯特·博世有限公司 | It is used for transmission the method and system of battery system parameter |
| CN103684161A (en) * | 2013-12-27 | 2014-03-26 | 南昌康富电机技术有限公司 | High-efficiency excitation generator automatic voltage regulator |
| TWI501542B (en) * | 2014-06-16 | 2015-09-21 | ||
| CN104796057A (en) * | 2015-05-16 | 2015-07-22 | 意昂神州（北京）科技有限公司 | Intelligent voltage regulator |
| CN104796057B (en) * | 2015-05-16 | 2017-07-21 | 意昂神州（北京）科技有限公司 | Intelligent voltage regulator |
| CN105071724A (en) * | 2015-08-10 | 2015-11-18 | 北京佩特来电器有限公司 | Electronic voltage regulator, AC generator and engine idle speed control method |
| CN105071724B (en) * | 2015-08-10 | 2018-01-16 | 北京佩特来电器有限公司 | The method of electronic voltage controller, alternating current generator and Eng ine Idling Control |
| US10819136B2 (en) | 2019-02-15 | 2020-10-27 | Ford Global Technologies, Llc | System and method of adaptive high voltage transient control for external loads |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102819227B (en) | Automobile voltage regulating circuit | |
| CN202772829U (en) | Automobile generator voltage adjusting device | |
| CN105609371B (en) | The electromagnetic relay drive circuit and implementation method of a kind of PWM ripples control | |
| CN105891652A (en) | Method and apparatus for detecting alternator rectifier diode short fault | |
| CN102901919A (en) | Double-feedback type induction generating system and self-testing method of active crowbar circuit thereof | |
| CN102969918B (en) | Three-phase bridge type converter system and promptly descend short-circuit protection circuit | |
| CN103580589A (en) | Electric rotary machine for motor vehicle | |
| CN203674694U (en) | Cycle-by-cycle current-limiting protection circuit for variable-frequency drive | |
| CN105553385A (en) | Electric vehicle controller and motor over-temperature protection method thereof | |
| CN208937644U (en) | Braking resistor qualitative detection circuit and its frequency converter | |
| CN201804090U (en) | DC motor simulation detection fixture | |
| CN205381157U (en) | Electric vehicle controller | |
| CN204405726U (en) | Electric machine phase current over-current detection and over current fault output circuit | |
| CN201966577U (en) | Short-circuit protection circuit for electric load used for vehicles | |
| CN211123210U (en) | Brake resistor short circuit detection circuit | |
| CN208797863U (en) | A kind of electric truck electric machine controller | |
| CN201708750U (en) | Permanent magnet synchronous motor controller for vehicle | |
| CN206149171U (en) | Automobile -used high -power generator voltage regulator system | |
| CN203766542U (en) | Electromobile circuit and electromobile | |
| CN207819427U (en) | Overcurrent protective power driving circuit and motor-drive circuit | |
| CN108923388A (en) | A kind of fault detection circuit powering on buffer cell and method | |
| CN210775668U (en) | Three-phase three-wire phase-loss judging circuit of charger | |
| CN203888638U (en) | Digital stepping motor pointer type combined instrument for loader | |
| CN202978236U (en) | Current limiting protection circuit of AC current of photovoltaic inverter | |
| CN210898983U (en) | Safe and efficient motor drive control system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130306 Termination date: 20150917 |
|
| EXPY | Termination of patent right or utility model |