CN104638717B - A kind of portable power source double temperature double control integrated circuit - Google Patents

Abstract

A kind of portable power source double temperature double control integrated circuit is by 1 controllable reference power supply part, 2 input amplifier parts, 3PI adjusters, 4 error amplifier parts, 5 comparator parts, 6 electric power detection control sections, 7 Digital Logic process parts, 8PWM boost conversions part, 9 constant-current charge parts are formed, its pin function is VREF, VCC, IN, IR, GND, PICI, LEDV, DCI, OUT, RT/CT, TFO, VFB pin, possess constant-current charge, PWM boosting, two temperature control detection, Zero-power-consumption standby, synchronously fill power etc. function；Create chip energy storage, Zero-power-consumption standby and double function of temperature control; Pyatyi electric power detection is protected; detection and overtemperature the control protection of environment temperature and battery temperature; the electric energy of energy-storage battery is not consumed during inoperative; it ensure that because shelving for a long time or the safety of accumulating; for products such as small miniature energy storage device, mobile phone power banks.

Description

A kind of portable power source double temperature double control integrated circuit

Art

Belong to the invention of portable power source technical field of integrated circuits.

Skill wood background

Portable power source be one collection storing up electricity, boosting, Charge Management in one portable set, its basic structure mainly by Three shell, motherboard circuit, energy-storage battery parts assemble and formed, and energy-storage battery typically uses lithium cell, and its voltage exists Between 2.7-4.2V, it is clear that can not be charged directly to other digital products, so portable power source outwards exports electric energy and had to There is booster system, lithium piezoelectric voltage is boosted to 5V, such as smart mobile phone, MP4, tablet personal computer, PSP, but lithium battery is to charging Discharge voltage is very sensitive, careless slightly to cause the accidents such as high temperature, high pressure, detonation, and around this problem, people application of a variety of Technological means make existing portable power source had been provided with short circuit, overcharge, cross put, constant current, the safeguard measure such as constant pressure, its core electricity Road is mainly made up of lithium electricity charging chip, DC-DC boost chips, managing electric quantity chip, is surpassed although these chips also possess itself Warm defencive function, but due to do not possess for the body of lithium battery temperature control protection, additionally, due between mainboard and lithium battery only Function of temperature control and sensor interface can not be realized by being limited to the electrical connection of both positive and negative polarity, therefore many technological deficiencies be present, by big Measure retrieval patent family technology and dissect existing product, so far can be directly against lithium battery in portable power source without discovery Body temperature control remote detection and the double temperature double control integrated chip and application example of protection, and the potential safety hazard of portable power source is exactly to come Overtemperature, detonation risk caused by coming from the super-charge super-discharge of reason battery, the defects of this potential safety hazard fully discloses prior art.

Inner is invented to hold

The invention discloses a kind of portable power source double temperature double control integrated circuit, using environment temperature compared with monitoring temperature Double temperature sensor temperature-sensitive control method realize the charge and discharge electro-temperature of remote monitoring lithium battery, and then control portable power source master Plate working condition, the defects of so as to overcome prior art, improve security and assembly efficiency, the energy-conserving and environment-protective of product.

The integrated circuit of the present invention mainly includes controllable reference power supply part 1, input amplifier part 2, pi regulator 3, Error amplifier part 4, comparator part 5, electric power detection control section 6, Digital Logic process part 7, PWM boost conversions portion Divide 8, constant-current charge part 9 forms electrical connection (as shown in Figure 1), and its body feature is can inside this IC chip Control reference power supply part 1 and form reference voltage electrical connection with error amplifier part 4, comparator part 5 respectively, pass through simultaneously Isolation control D0 and internal electric source end VCC is electrically connected, and is also formed and is electrically connected with threshold controller DZ, input amplifier part 2 form amplifier electrical connection with error amplifier 4, pi regulator 3 respectively, and error amplifier part 4 also turns with PWM boostings Parallel operation 8 realizes the electrical connection of voltage controlled duty ratio regulation and control, and the input of comparator part 5 is adjusted with controllable reference power supply part 1 and PI Device 3 is electrically connected, and output is electrically connected with Digital Logic process part 7, and electric power detection control section 6 is electric with controllable benchmark respectively Source part 1 and electric current IR connect and compose Current Voltage detection process, and connecting and composing under-voltage overvoltage with Digital Logic process part 7 protects Shield, constant-current charge part 9 are connected controlled composition constant-current charging circuit with Digital Logic process part 7, and common by 12 pins Electrical connection is formed, so as to form integrated circuit of the present invention (as shown in Figure 2), its pin function is respectively battery electricity Press input pin VREF, energy storage source access pin VCC, sensing input pin IN, current detecting input pin IR, grounding leg GND, integral adjustment Input pin PICI, battery capacity indication output pin LEDV, constant-current charge input pin DCI, boost output pin OUT, frequency input pin RT/ CT, voltage-controlled output pin TFO, detection input pin VFB are formed.

1 controllable reference power supply part of the present invention include active circuit K, threshold controller Dz, isolation controller D0, The circuits such as external energy storage source CC, constant current a reference source V-I are formed；It is characterized in that active circuit K be provided with self-starting activation voltage, one Aspect is controlled by threshold controller DZ, and it is integrated to connect and compose power circuit through isolation controller D0 and extraneous energy storage source CC all the way Circuit is powered, and activation voltage is generally 2.2V-5V, so as to the limit low pressure of ferric phosphate lithium cell is adapted to, another way and perseverance Stream a reference source V-I connects and composes error amplifier A2, compares amplifying circuit A3 a reference source offer reference power source, reference voltage one As be set in that 1.5V is more suitable, and active circuit K is automatically activated through isolation controller when cell voltage is more than more than 2.5V D0 provides power supply to extraneous energy storage source CC charging energy-storings for integrated circuit, it is established that constant current a reference source V-I benchmark electricity Pressure, active circuit K is also formed by threshold controller DZ with Digital Logical Circuits N+D in addition is connected realization startup stopping and work shape The logic control function of state, this circuit structure solve the problems, such as circuit dormancy or it is under-voltage when power consumption, realize zero energy consumption.

Input amplifier part 2 of the present invention is made up of difference amplifier A1, error amplifier part 4 electrically to be connected Connect, it is characterised in that the external remote temperature sensor Rt of in-phase input end 1N, reverse input end are defeated by error amplifier part 4 Go out and accessed as dynamic reference source, A1 output end dynamic electric voltage is electric to height when homophase input voltage is higher than reverse input voltage Position skew, to provide comparison voltage, actually constant current a reference source V-I and error amplifier A2 and long-range temperature for next stage circuit Degree sensor Rt and amplifier input resistance constitute an input dynamic network of electrical bridge of input amplifier part 2, are exactly this The detection that individual dynamic network of electrical bridge is just provided to remote temperature is accurate.

Pi regulator 3 of the present invention forms electrical connection by J-F process circuits, integrating capacitor Ci networks, its feature It is to compare track algorithm control using second order noninertia proportional, integral PI regulations, threshold values, is exported by input amplifier A1 high The external integrating capacitor Ci of potential excitation obtains integral curve point, realizes proportion integral control device adjustment control to input signal Differentiate, its output voltage be supplied to voltage comparator A3 in-phase input end and with the constant current a reference source V-I bases of inverting input Quasi- voltage-tracing, which compares, obtains high potential output.

Error amplifier part 4 of the present invention forms electrical connection by voltage amplifier A2, follow-up amplifier A4, its It is characterised by that voltage amplifier A2 is connected into in-phase amplifier, by inputting VFB, output TFO external-connected ports access local temperature and passed Sensor Dt and potential-divider network R1/R2, output termination follow-up amplifier A4, realize that voltage follow drives voltage-controlled impulse circuit, it is local Temperature sensor Dt temperature, which often raises 1 DEG C of its forward voltage drop, reduces 2mV, and voltage amplifier A2 homophase inputs termination reference voltage V- I is exported, inverting input then jointing temp sensor Dt, while form a voltage drop, so local temperature in inverting input Change will cause the change of inverting input voltage drop, so as to cause the change of voltage amplifier A2 output end voltages, this Voltage change is also superimposed with potential-divider network, realizes the dual-use function of temperature and voltage detecting and output control.

Comparator part 5 of the present invention forms electrical connection by voltage x current dual comparator A3, it is characterised in that electricity The output end that pressure, current comparator inverting input are connected to 1 controllable reference power supply forms reference voltage, in-phase input end connection Output end to integrator 3 is formed, and the inspection leakage resistance Ri that current comparator in-phase end connects IR ends forms electrical connection, adjusts benchmark The height of voltage determines a fixed height for starting to control a voltage, that is, overtemperature point, and same current comparator also just obtains One excessively stream is started to control a little.

Electric power detection control section 6 of the present invention is by variable voltage amplifier A5, voltage x current weighting processor V+I Form electrical connection, it is characterised in that variable voltage amplifier A5 voltage is derived from controllable reference power supply part 1, and electric current passes through External-connected port IR is derived from RI, and be weighted on weighting processor V+I processing obtain over-pressed, under-voltage, excessively stream trigger signal and Battery capacity indication signal, over-pressed, under-voltage, over-current signal access Digital Logical Circuits part 7 and realize over-and under-voltage overcurrent protection all the way, Another way is worked by external-connected port LEDV output driving LED1-5 indicating circuits, is improved than traditional level Four electricity display precision One grade, therefore and over-pressed, the under-voltage, overcurrent protection that obtains is more accurate.

Digital Logic process part 7 of the present invention is by delay pulse processor Y-C, repeatable steady state trigger N+D Both the logic gates that had included forms electrical connection, it is characterised in that the activation signal of circuit on the CC of energy storage source come as being obtained Activation voltage, state transition signals come as the breakdown voltage on DW, and temperature signal carrys out the electric arteries and veins as voltage comparator A3 Punching；An internal steady state trigger action of clean positive pulse triggering, trigger output are obtained after wherein delayed pulse processing Control signal access PWM boost conversions part 8 controls its working condition, if comparison amplifier 5 exports multiple unstable electricity Pulse signal, (100mS is inside set to) within the delay pulse time, delay pulse processor Y-C believes unnecessary electric pulse is excluded Number only provide a pure pulse per second (PPS) output, and Digital Logic process part 7 locking time be set in 250mS, this meaning Delay pulse processor Y-C can be with repeated trigger Digital Logic process part 7, and is allowed to keep output all the time in locking shape State, so as to avoid producing malfunction (as shown in Figure 2) to PWM boost conversions part 8.

PWM boost conversions part 8 of the present invention by voltage-controlled input translator, integral triangle wave producer, controllable apply Schmitt trigger, threshold values comparison circuit form the connection of V-F circuit electricals, it is characterised in that control signal is defeated by error amplifier A4 Enter, deliver to dead time comparator all the way, be sent to the input of voltage-controlled integrator all the way, dead time comparator has 120mV Input offset voltage, it limits minimum output dead time and is approximately equal to the 4% of sawtooth period, and maximum output dutycycle For 96%, when error amplifier A4 inputs do not connect datum, dutycycle is 48%；The dutycycle when accessing datum For 96%；It is additional when Power MOSFET can be produced on the output pulse in fixed voltage (scope is between 0-3.3V) Dead time, to control boosting efficiency, prevent from turning on entirely；Voltage-controlled electricity by external integrating capacitor CT by inverting input Press to change integral characteristic, change or select between 0-48% between 0%-96% so as to change the cycle of modulation pulsewidth Change, and pulse frequency keeps constant, voltage-controlled voltage can be in the arbitrary value between 0-1.5V, pulse frequency F ≈ 1.72/RtCt, Wherein built-in Rt=5K.

Constant-current charge part 9 of the present invention is formed and electrically connected by controllable constant current source circuit I, external positive-negative-positive driving tube Connect, it is characterised in that driving tube is positive-negative-positive, and built-in precision constant current source, constant current source current are set to 0-10MA, maximum continuous current by The current amplification factor of external driving tube determines i.e.：Current amplification factor is multiplied by maximum constant current source current value, such as to obtain 1A charging current, then the external driving tube that selection current amplification factor is 100, according to lithium battery maximum charging voltage come true Determine Constant current input voltage, lithium battery safe charging is realized by constant-current source autoconverter, adaptability, versatility are stronger, and pass The constant voltage constant current charging mode of system needs application specific integrated circuit to realize, which results in the complexity of portable power source circuit, from From the point of view of practical application, because input voltage fluctuation is larger, this segmented charging modes can not play actual effect well, nor Best mode.

The present invention can form portable power source complete circuit by a typical peripheral circuit, and it includes 00 ic core Piece, 01 start-up circuit, 02 charging circuit, 03 booster circuit, 04 accumulator, 05 local temperature control circuit, 06 long-range temperature control electricity Road, 07 battery capacity indication circuit, 08 energy-storage battery are formed (as shown in Figure 4), and circuit feature is by start-up capacitance Ct, detection Network DW, R1/R2, feedback network Dt, RT/CT, TFO, VFB, PICT pin of integrating capacitor Ci and integrated circuit connect structure respectively Into start-up circuit, the startup work of integrated circuit is determined, realizes constant-current charge, PWM boostings, two temperature control detection, zero-power It is standby, synchronously fill power supply etc. function；By the DCI pin of charging socket CZ2, power tube U1, isolating diode D2 and integrated circuit, VREF pin and lithium battery EC connect and compose charging circuit respectively, realize the charging to energy-storage battery or battery of mobile phone；By boosting Switching tube U2, inductance L, diode D1, electric capacity C0, the OUT pin and lithium battery EC of accessory power outlet CZ1 and integrated circuit connect respectively Composition booster circuit is connect, realizes boost charge of the portable power source to battery of mobile phone；By input socket CZ2, diode D3, energy storage Electric capacity CC and integrated circuit VCC pin connect and compose accumulator, realize the energy storage work of integrated circuit, Zero-power-consumption standby；By remote Journey temperature sensor Rt, local temperature sensor Dt and integrated circuit IN, TFO, VFB pin connect and compose temperature control circuit respectively, Realize the temperature control protection of the discharge and recharge of portable power source lithium battery；By battery capacity indication pipe LED1-5, inspection current load RI and integrated circuit IR, LEDV, GND connect and compose battery capacity indication circuit respectively, realize over-pressed, under-voltage, overcurrent protection in charge and discharge process and Battery electric quantity is shown.

The control mode of the present invention mainly includes the voltage-controlled integration dutycycle PWM closed loops bimodulus modulation of tracking mode, realizes boosting Voltage stabilizing is powered, local to use second order noninertia proportional, integral PI adjustment controls with remote double temperature control, realizes dual temperature environment dynamic ratio Compared with, catching micro- difference variation and be controlled by, precision constant current source built in solidification continuous current driving realizes automatic constant current quick charge, Overvoltage/undervoltage, overcurrent protection and Pyatyi electricity display management are realized in the two-parameter Weight tracking regulation of voltage x current, create chip thresholding Voltage switch control circuit, it is ensured that the energy consumption between eliminating integrated circuit startup work and exiting normally under critical condition, inside set Digital logic processing circuit has automatic activation, State Transferring, pulse differentiation, the function of delay disposal, ad hoc energy storage type zero power Dormancy control circuit is consumed, when energy-storage battery voltage is down to below integrated circuit normal working voltage, on storage capacitor CC Voltage is also released when being zero, and circuit is blocked and is stopped, and now equivalent to being separated completely with battery, and needs circuit to open When dynamic, then it is set to charge to integrated circuit normal working voltage by activating storage capacitor CC, then integrated circuit is activated, and Traditional portable power source IC chip can only accomplish micro energy lose dormancy, and not possess the functions such as dual temperature control and energy storage for power supply.

Operation principle can be described as, and when portable power source lithium battery EC voltages are in low-voltage state 2.2V-2.8V, connect Charger starts to charge up charging plug insertion CZ2, and charging voltage charges to 5V or so by D3 to storage capacitor CC first, VCC obtains 2.8V-5V supply voltage, and IC chip one Deadtime Control system sensitizing pulse of generation makes whole (as shown in Figure 3), N circuit Q- ends upset output high potential, constant-current charging circuit drives U1 after D2 isolates for individual circuit work Lithium battery EC is charged, while chip power supply also exported by inductance L, D1, C0 through CZ1 in addition through VREF ends；DW is used for examining The voltage status surveyed on C0, state is off during less than 3.2V, it is meant that now energy-storage battery needs charging can not start liter Volt circuit, DW breakdown conducting when higher than the voltage range, access voltage detecting potential-divider network R1 R2, now provided by D-W Trigger signal gives Digital Logical Circuits N+D, makes booster circuit while is activated, and by driving U2 switch, realizes simultaneously to lithium Battery EC and the function of mobile phone charging, inductance L, fast recovery diode D1, filter capacitor C0 here play at switch can work With.When battery is full close to charging, because lithium battery EC voltage flows shape close to charging voltage, constant-current source automatically into tax State, if now mobile phone is still connected to CZ1 and is in charged state, due to R1 R2 dividing points voltage it is very high, make integrated circuit Voltage controlled duty cycle circuit V-F dutycycle it is very big, U2 is nearly at off state, therefore booster circuit is not in that overvoltage is existing As；And now, cell voltage and charging and discharging currents are taken respectively from VREF points and examine leakage resistance Ri by electric quantity display circuit V+I Row weighting is handled, and passes through Pyatyi partial pressure reality illuminating state；And the work of double temperature control circuits is to detect home environment temperature by Dt Degree, Rt detect the body temperature of long-range lithium battery, and two temperature are amplified, are being compared after Integral Processing, obtain Pulse is controlled, then is differentiated by delay circuit, finally goes to control constant-current charging circuit and boosting power supply circuit normal work.

It is clear that direct be advantageous in that the portable power source and control mode that are formed according to the present invention are brought realizes perseverance Current charge, PWM boostings, two temperature control detection, Zero-power-consumption standby, synchronously fill the functions such as power supply；Especially IC chip Employ the pin pin pattern of standard 12, the chip energy storage of original creation and Zero-power-consumption standby function, double function of temperature control, Pyatyi electric power detection Protection, portable power source is set to realize the detection of over-pressed, under-voltage, overcurrent protection and environment temperature and battery temperature at work and surpass Temperature control is protected, while does not consume during inoperative the electric energy of energy-storage battery, it is ensured that because shelving for a long time or the safety of accumulating, because This has highlighted originality, novelty and the practicality of the present invention.

Brief description of the drawings

The present invention can be further described by accompanying drawing.

Accompanying drawing 1 is integrated circuit block diagram of the present invention

Accompanying drawing 2 is IC interior schematic diagram of the present invention

Accompanying drawing 3 is groundwork oscillogram of the present invention

Accompanying drawing 4 is the portable power source circuit block diagram of the present invention

Accompanying drawing 5 is circuit diagram of the embodiment of the present invention

Embodiment

Art embodiments of the present invention are further retouched as the principle described in accompanying drawing 1-5 and embodiment, it is characterised in that with collection It is circuit core into circuit chip 00, peripheral portable power source circuit is by start-up capacitance Ct, detection network DW, R1/R2, feedback network Dt, integrating capacitor Ci and integrated circuit RT/CT, TFO, VFB, PICT pin connect and compose start-up circuit 01 respectively, determine integrated The startup work of circuit, realize that constant-current charge, PWM boostings, two temperature control detection, Zero-power-consumption standby, synchronously fill the work(such as power supply Energy；By EC points of the DCI pin of charging socket CZ2, power tube U1, isolating diode D2 and integrated circuit, VREF pin and energy-storage battery Charging circuit 02 is not connected and composed, realizes the charging to energy-storage battery or battery of mobile phone；By boosted switch pipe U2, inductance L, two Pole pipe D1, electric capacity C0, the OUT pin and energy-storage battery EC of accessory power outlet CZ1 and integrated circuit connect and compose booster circuit 03 respectively, Realize boost charge of the portable power source to battery of mobile phone；By input socket CZ2, diode D3, storage capacitor CC and integrated circuit VCC pin connect and compose accumulator 04, realize the energy storage work of integrated circuit 00, Zero-power-consumption standby；By local temperature sensor TFO, VFB pin of Dt and integrated circuit connect and compose the detection that local temperature control circuit 05 realizes environment temperature, are passed by remote temperature Sensor Rt and integrated circuit IN pin connect and compose long-range temperature control circuit 06, realize that the temperature control of the discharge and recharge of portable power source lithium battery is protected Shield；Battery capacity indication electricity is connected and composed by battery capacity indication pipe LED1-5, inspection current load RI and integrated circuit IR, LEDV, GND respectively Road 07 realizes that the battery electric quantity in charge and discharge process is shown, energy-storage battery 08 is formed by lithium battery EC；It can be seen that this example is only Repertoire needed for portable power source is just formed using one piece of IC chip, and circuit realizes zero power when standby Consumption, has highlighted the advantage of the invention created, this integrated circuit may be developed that corresponding practical circuit in addition.

In summary, the present invention is by the design innovation to integrated circuit, except with over-pressed, under-voltage, overcurrent protection function Outside, the temperature control defencive function of portable power source, the chip energy storage of original creation and Zero-power-consumption standby function are added, double function of temperature control, is made Portable power source realizes overtemperature control protection at work, while does not consume the electric energy of energy-storage battery during inoperative, it is ensured that Because shelving for a long time or the safety of accumulating, portable power source has been filled up in terms of battery temperature control protection the defects of, with existing similar collection Compared into circuit, circuit is formed succinctly, and integrated level is high, and control mode is unique, and multiple functional, pragmatic general is strong, and also big Portable power source board area is reduced greatly, volume is reduced, reduces production cost.

The present invention is applied to small-sized miniature accumulation power supply, stand-by power supply, emergency power supply, especially suitable for mobile phone power bank Deng the exploitation of product.

Claims (10)

1. a kind of portable power source double temperature double control integrated circuit, its integrated circuit mainly includes controllable reference power supply part (1), input Amplifier section (2), pi regulator (3), error amplifier part (4), comparator part (5), electric power detection control section (6), Digital Logic process part (7), PWM boost conversions part (8), constant-current charge part (9) form electrical connection, its main body Be characterised by inside this IC chip controllable reference power supply part (1) respectively with error amplifier part (4), comparator portion Point (5) form reference voltage electrical connection, while are electrically connected by isolating control D0 and internal electric source end VCC, also and thresholding Controller DZ forms electrical connection, and input amplifier part (2) are formed with error amplifier (4), pi regulator (3) respectively amplifies Device is electrically connected, and error amplifier part (4) also realizes voltage-controlled electrical connection, comparator part with PWM boost conversions part (8) (5) input is electrically connected with controllable reference power supply part (1) and pi regulator (3), output and Digital Logic process part (7) electricity Gas connects, and electric power detection control section (6) connect and compose Current Voltage inspection with controllable reference power supply part (1) and electric current IR respectively Survey is handled, and under-voltage overvoltage protection is connected and composed with Digital Logic process part (7), constant-current charge part (9) with Digital Logic Reason part (7) connects controlled composition constant-current charging circuit, and collectively forms electrical connection by 12 pins, its pin function point Not Wei cell voltage input pin VREF, energy storage source access pin VCC, sensing input pin IN, current detecting input pin IR, grounding leg GND, integral adjustment input pin PICI, battery capacity indication output pin LEDV, constant-current charge input pin DCI, boost output pin OUT, frequency Rate input pin RT/CT, voltage-controlled output pin TFO, detection input pin VFB are formed；Its circuit control method is using environment temperature and prison The double temperature sensor temperature-sensitive control method that testing temperature compares realizes the charge and discharge electro-temperature of remote monitoring lithium battery, and then controls Portable power source main board work state processed, the main voltage-controlled integration dutycycle PWM closed loops bimodulus of tracking mode that includes is modulated, local and long-range Dual temperature control uses second order noninertia proportional, integral PI adjustment controls, solidification continuous current driving quick charge control, voltage x current Two-parameter Weight tracking regulation, threshold voltage switch, energy storage type zero-power dormancy control.

A kind of 2. portable power source double temperature double control integrated circuit according to claim 1, it is characterised in that described controllable base Quasi- power unit (1) includes active circuit K, threshold controller Dz, isolation controller D0, external energy storage source CC, constant current a reference source V-I circuits form electrical connection；It is characterized in that active circuit K is provided with self-starting activation voltage, on the one hand by threshold controller DZ is controlled, and it is integrated circuit to connect and compose power circuit through isolation controller D0 and extraneous energy storage source CC all the way, activation electricity Press as 2.2V-5V, so as to adapt to the limit low pressure of ferric phosphate lithium cell, another way connects and composes with constant current a reference source V-I Error amplifier A2, a reference source for comparing amplifying circuit A3 provide reference power source, and reference voltage is set in 1.5V, when 2.5V with Active circuit K is automatically activated through isolation controller D0 to extraneous energy storage source CC charging energy-storings when upper, while is carried for integrated circuit Power supply source, it is established that constant current a reference source V-I reference voltage, active circuit K is also by threshold controller DZ and Digital Logic in addition Circuit N+D form electrical connection, circuit dormancy or it is under-voltage when power consumption be zero energy consumption.

3. a kind of portable power source double temperature double control integrated circuit according to claim 1, it is characterised in that described input is put Big device part (2) forms electrical connection by difference amplifier A1, error amplifier part (4), and in-phase input end 1N is external long-range Temperature sensor Rt, reverse input end access the output of error amplifier part (4) as dynamic reference source, constant current a reference source V-I and error amplifier A2 and remote temperature sensor Rt and amplifier input resistance constitute input amplifier part (2) One input dynamic network of electrical bridge, it is exactly that the detection that this dynamic network of electrical bridge is just provided to remote temperature is accurate.

A kind of 4. portable power source double temperature double control integrated circuit according to claim 1, it is characterised in that described PI regulations Device (3) is made up of J-F process circuits, integrating capacitor Ci networks, is compared by second order noninertia proportional, integral PI regulations, threshold values Track algorithm controls, and input amplifier A1 output high potentials encourage external integrating capacitor Ci to obtain integral curve point, realize ratio Differentiation of the pi regulator adjustment control to input signal is integrated, its output voltage is supplied to voltage comparator A3 in-phase input end And high potential output is obtained compared with the constant current a reference source V-I reference voltages tracking of inverting input.

5. a kind of portable power source double temperature double control integrated circuit according to claim 1, it is characterised in that described error is put Big device part (4) forms electrical connection by voltage amplifier A2, follow-up amplifier A4, and voltage amplifier A2 is connected into mutually amplification Device, by inputting VFB, output TFO external-connected ports access local temperature sensor Dt and potential-divider network R1/R2, output termination with With amplifier A4, local temperature sensor Dt temperature, which often raises 1 DEG C of its forward voltage drop, reduces 2mV, and voltage amplifier A2 is the same as mutually defeated Enter to terminate reference voltage V-I outputs, then jointing temp sensor Dt forms electrical connection to inverting input.

A kind of 6. portable power source double temperature double control integrated circuit according to claim 1, it is characterised in that described comparator Partly (5) form electrical connection by voltage x current dual comparator A3, voltage, current comparator inverting input is connected to (1) can The output end for controlling reference power supply forms reference voltage, and the output end that in-phase input end is connected to pi regulator (3) is formed, electric current ratio The inspection leakage resistance Ri that IR ends are connect compared with device in-phase end forms electrical connection, and the height for adjusting reference voltage determines that one fixed starts to control The height i.e. overtemperature point, excessively stream of point voltage start to control a little.

A kind of 7. portable power source double temperature double control integrated circuit according to claim 1, it is characterised in that described electricity inspection Survey control section (6) and electrical connection is formed by variable voltage amplifier A5, voltage x current weighting processor V+I, variable voltage is put Big device A5 voltage is derived from controllable reference power supply part (1), and electric current is derived from RI by external-connected port IR, and in weighting processor Processing is weighted on V+I and obtains over-pressed, under-voltage, excessively stream trigger signal and battery capacity indication signal, over-pressed, under-voltage, over-current signal Digital Logical Circuits part (7) are accessed all the way, another way passes through external-connected port LEDV output driving LED1-5 indicating circuits.

8. a kind of portable power source double temperature double control integrated circuit according to claim 1, it is characterised in that described numeral is patrolled Collect process part (7) and electricity is formed by delay pulse processor Y-C, repeatable steady state trigger the N+D logic gates both included Gas connects, and the activation signal of circuit comes as on DW as the activation voltage obtained on the CC of energy storage source, state transition signals Breakdown voltage, temperature signal carrys out the electric pulse as voltage comparator A3；One is obtained after wherein delayed pulse processing to do The internal steady state trigger action of net positive pulse triggering, trigger output control signal access PWM boost conversions part (8) control Its working condition, if comparison amplifier (5) exports multiple unstable electric impulse signals, in delay pulse time 100mS, Delay pulse processor Y-C will exclude unnecessary electric impulse signal and only provide a pure pulse per second (PPS) output, and Digital Logic Process part (7) must be set in 250mS locking time, it means that delay pulse processor Y-C can be patrolled with repeated trigger numeral Process part (7) is collected, and is allowed to keep output to be in the lock state all the time, so as to avoid that PWM boost conversions part (8) is produced Malfunction.

A kind of 9. portable power source double temperature double control integrated circuit according to claim 1, it is characterised in that described PWM liters Conversion portion (8) is pressed by voltage-controlled input translator, integral triangle wave producer, controllable Schmidt trigger, threshold values comparison circuit The connection of V-F circuit electricals is formed, control signal is inputted by error amplifier A4, delivers to dead time comparator all the way, send all the way Toward the input of voltage-controlled integrator, dead time comparator has 120mV input offset voltage, and minimum output dead time is about Equal to the 4% of sawtooth period, and maximum output dutycycle is 96%, when error amplifier A4 inputs do not connect datum Dutycycle is 48%；When accessing datum, dutycycle is 96%；When Power MOSFET in fixed voltage in 0- Additional dead time can be produced between 3.3V on the output pulse, to control boosting efficiency, prevents from turning on entirely；By outer Integrating capacitor CT is met by the voltage-controlled voltage of inverting input to change integral characteristic, so as to change the cycle of modulation pulsewidth in 0%- Change between 96% or select to change between 0-48%, and pulse frequency keeps constant, voltage-controlled voltage is between 0-1.5V Arbitrary value, pulse frequency F ≈ 1.72/RtCt, wherein built-in Rt=5K.

A kind of 10. portable power source double temperature double control integrated circuit according to claim 1, it is characterised in that described constant current Live part (9) forms electrical connection by controllable constant current source circuit I, external positive-negative-positive driving tube, and driving tube is positive-negative-positive, built-in essence Close constant-current source, constant current source current are set between 0-10MA, maximum continuous current by the current amplification factor of external driving tube Lai Decision is：Current amplification factor is multiplied by maximum constant current source current value.