33results about How to "Reduce output voltage" patented technology

The invention relates to the technical field of computing power cabin management and control, in particular to an energy-saving and efficient computing power cabin management and control system and method based on artificial intelligence. Comprising a computing power cabin sensing unit, a load prediction operation unit, a resource scheduling generation unit, a heat dissipation scheduling generation unit, a scheme optimization unit and a scheme comparison control unit. The computing power cabin sensing unit is used for collecting the internal temperature and the external temperature of the computing power cabin, power consumption and the load state of a server; the load prediction operation unit is used for extracting historical operation data and real-time operation data of the server; the method comprises the following steps: acquiring a temperature range of normal operation of a server as a heat dissipation standard, acquiring a load state of the server according to a resource scheduling scheme, combining an internal temperature, an external temperature and the heat dissipation standard, performing heat dissipation power analysis by using AI, and formulating heat dissipation power which enables the internal temperature to be within the heat dissipation standard and consumes least energy.

The invention belongs to the technical field of direct-current pulse power supply systems, and provides a constant-current high-frequency high-voltage direct-current pulse power supply applied to electrostatic dust collection and an implementation method thereof. The device comprises a pulse high-voltage generation circuit, a driving circuit and a control system, the pulse high-voltage generation circuit comprises a primary filter rectifier module, a high-frequency inverter circuit, a high-frequency voltage transformer T and a voltage doubling rectifier circuit; a driving circuit; according to the implementation method of the high-frequency and high-voltage direct-current pulse power supply, three-phase 380V input is subjected to controllable rectification, high-frequency inversion, boosting through the ferrite transformer and voltage doubling rectification to obtain direct-current pulse high-voltage output, the power supply works stably, the pulse voltage is high, electricity is saved by about 40% when the power supply is applied to the aspect of environmental protection, and the application range is wide. The device can be widely applied to environment-friendly equipment for smoke removal, dust removal, odor removal, moisture removal and the like under working conditions, and is remarkable in effect, stable in quality and obvious in electricity-saving effect; on the other hand, through two-stage detection and fault judgment, the pulse power supply can be well controlled and protected.

The invention is suitable for the technical field of electric energy conversion, and provides a voltage-sharing control method of a three-level circuit converter and a controller. The method comprises the following steps: acquiring average values of half-bus bias voltage and inductive current of a current switching period and a previous switching period of the three-level circuit converter; determining a duty ratio compensation amount based on the half-bus bias voltage of the current switching period; judging a corresponding compensation direction, a target compensation tube and an integral parameter for eliminating a static error based on the average values of the half-bus bias voltage and the inductive current of the current switching period and the previous switching period; and performing voltage-sharing control on the target compensation tube based on the duty ratio compensation amount, the compensation direction, the target compensation tube and the integral parameter for eliminating the static error so as to perform voltage correction. According to the method provided by the invention, the repeated debugging work of debugging personnel on the grading ring parameters due to the change of the equipment application scene can be avoided, the rectification speed and precision are improved, and the output voltage and current control precision is improved.

The present application provides a bus power supply circuit and system, which relate to the field of bus power supply technology. The bus power supply circuit includes a voltage source, a current limiting circuit, a reference voltage circuit, a voltage comparison circuit and a voltage conversion circuit. The voltage source is electrically connected to the current limiting circuit, the reference voltage circuit, the voltage comparison circuit and the voltage conversion circuit respectively, and supplies power to the current limiting circuit, the reference voltage circuit and the voltage comparison circuit. The reference voltage circuit is electrically connected to the current limiting circuit and the voltage comparison circuit respectively, and the voltage comparison circuit is electrically connected to the current limiting circuit and the voltage conversion circuit respectively. The bus power supply circuit and system provided by the present application have the advantage of protecting the electronic devices in the current limiting circuit when the slave device is short-circuited.

The invention relates to an Ethernet power supply, which is used for being coupled with load equipment. The Ethernet power supply comprises a power supply device, an output control circuit, a path control circuit and a control module, when the output control circuit detects that the load device is not coupled to the output end of the Ethernet power supply, the path control circuit breaks the power supply path from the output end to the control module, and the output control circuit adjusts the output voltage to a first voltage, so that the control module enters a forbidden state. When the output control circuit detects that the load device is coupled to the output terminal, the path control circuit short-circuits the power supply path, and the output control circuit adjusts the output voltage to the second voltage, so that the control module enters an enabled state. The invention also relates to a step-down control circuit and a control method of the Ethernet power supply.

The utility model relates to oil field casing drilling, in particular to a sensor for casing screwing-on measurement, and aims to solve the problem that the error correction result is inaccurate due to the temperature difference between the placement position of a temperature sensor and the patch position of a strain gauge and the self measurement error of the temperature sensor. According to the utility model, through the arrangement of the PCB groove, the radio frequency antenna groove and the battery hole, the number of turns of thread rotation in the threaded connection process of casing drilling equipment and the torque generated during thread matching can be monitored at the same time, and the quality of threaded connection between equipment can be ensured more effectively. And the design of a Wheatstone bridge temperature compensation circuit can be completed according to the sensitivity of the negative temperature coefficient of the strain gauge and the resistance change of the positive temperature coefficient. Through the feedback mechanism of the compensation circuit, the reduction of the output voltage of the strain gauge Wheatstone bridge circuit caused by the temperature can be effectively compensated.

The utility model relates to a dimming turn-off control circuit and a driving power supply. The dimming turn-off control circuit comprises a voltage feedback module, a dimming turn-off module, a loop feedback module and a dummy load module, the dimming turn-off module is turned on according to the dimming turn-off signal and pulls down a voltage feedback signal output by the voltage feedback module when the dimming turn-off module is turned on and controls the dummy load module to start working; the loop feedback module outputs a turn-off feedback signal to the main control chip according to the pulled-down voltage feedback signal, so that the main control chip turns off the output according to the turn-off feedback signal; and the dummy load module forms a dummy load loop during working. The output voltage of the voltage feedback module and the output voltage of the driving power supply are reduced through the dimming turn-off module, the purpose of dimming turn-off is achieved, meanwhile, a dummy load loop is formed through the dummy load module after dimming turn-off, an auxiliary power supply winding keeps certain energy, the output voltage is kept stable, the turn-off effect can be achieved, and the service life of the driving power supply is prolonged. And the problem of dimming flickering can be avoided, the reliability is good, and the cost is low.

The invention provides an analog quantity safety barrier circuit, a safety barrier system and an industrial cabinet. The analog quantity safety barrier circuit comprises a safety side circuit and a danger side circuit which are electrically isolated through transformers, the danger side circuit comprises a first signal coupling unit and a second signal coupling unit, and the input ends of the first signal coupling unit and the second signal coupling unit receive signals from a safety side through corresponding signal transformers respectively; the input ends of the first rectifying and filtering unit and the second rectifying and filtering unit are correspondingly connected to the output ends of the first signal coupling unit and the second signal coupling unit respectively, and the power supply ends receive energy from the safety side through corresponding power supply transformers respectively; and the series boosting unit is configured to take the direct-current output voltage of the first rectifying and filtering unit as the reference ground potential of the second rectifying and filtering unit, so that the output voltages of the first rectifying and filtering unit and the second rectifying and filtering unit are connected in series and superposed to form a composite power supply for supplying power to a dangerous-side field transmitter. According to the analog quantity safety barrier circuit, the power consumption of the analog quantity safety barrier circuit can be reduced.

The utility model discloses a relay power supply circuit which comprises a voltage stabilizing circuit. The input end of the voltage division circuit is connected to the output end of the voltage stabilizing circuit, and the first output end of the voltage division circuit is connected to the control end of the voltage stabilizing circuit; the first input end of the voltage division control circuit is connected to the output end of the voltage stabilizing circuit, the output end of the voltage division control circuit is connected to the first output end of the voltage division circuit, and the second input end of the voltage division control circuit is connected to the second output end of the voltage division circuit; and the voltage division control circuit controls the output voltage of the voltage stabilizing circuit to be reduced and maintained at a set voltage value after starting by controlling the voltage of the first output end of the voltage division circuit. According to the utility model, the reduced output voltage after starting can be output through the voltage division control circuit, and the effect of reducing the loss of the relay is realized by utilizing the characteristic that only lower maintaining voltage needs to be provided after the relay contact is closed.

The embodiment of the utility model provides an inverter adopting an electromagnetic compatibility design, and the inverter comprises an input side electromagnetic interference filtering module of which the input end is connected with a DC input interface; the input end of the power supply switching unit is connected with the output end of the input side electromagnetic interference filtering module; the input end of the common mode inductor is connected with the output end of the power supply switching unit; the input end of the inversion unit is connected with the output end of the common mode inductor unit; and the input end of the alternating-current inductor-capacitor-inductor filtering module is connected with the output end of the inversion unit, and the output end of the alternating-current inductor-capacitor-inductor filtering module is connected with an alternating-current load interface.

The utility model provides an excitation motor control device and an excitation motor, the excitation motor control device is provided with a first excitation winding and a second excitation winding which are connected in series, the supply reliability of excitation current is guaranteed, and a half-bridge circuit is formed by combining a first rectification circuit, a second rectification circuit, a first transistor and a second transistor. Reverse connection of the first excitation winding and the second excitation winding with the rotor winding is realized, output of the excitation motor is monitored according to the voltage sampling circuit, and reverse control of excitation current accessed to the rotor winding is controlled in combination with the half-bridge controller. According to the excitation motor control device and the excitation motor provided by the utility model, when the output voltage of the excitation motor rises due to the influence of a capacitive load, the excitation current can be reversely regulated and controlled, and the rapid reversing of an excitation magnetic field is realized, so that the output voltage of the excitation motor is rapidly reduced, the voltage stabilization control is realized, and the realization is simple and effective; the adaptive capacity of the excitation motor to a capacitive load can be effectively improved, and the performance of the motor is improved.

The invention discloses a radio frequency power supply circuit and electronic equipment. The radio frequency power supply circuit comprises a power supply module, a first inductor, a power tube, a peak value detection module and a control module. The first end of the first inductor is connected with the power module; the first end of the power tube is connected with the second end of the first inductor and coupled with a load, the second end of the power tube is grounded, and the control end of the power tube is configured to input a radio frequency signal; the peak detection module is connected with the first end of the power tube, and the peak detection module is configured to obtain the peak voltage of the first end of the power tube; the control module is connected with the peak value detection module and the power supply module, and the control module is configured to control the power supply module to reduce the output voltage when the peak value voltage is larger than a first voltage threshold value. Through the above mode, the mismatch risk of the power tube can be effectively reduced, and the overvoltage protection of the power tube can be realized.

The invention provides a modular energy-taking power supply, a sub-module and a modular multilevel converter. The modular energy-taking power supply can comprise a control module, a plurality of isolation modules and a plurality of voltage-sharing modules. The plurality of isolation modules are connected with the plurality of voltage-sharing modules in a one-to-one correspondence manner. The control module is used for sending a control signal to each isolation module. The isolation module is used for reducing the input voltage and providing the output voltage for the control system. The voltage-sharing module is used for providing input voltage for the isolation module. The size of the energy-taking power supply is greatly reduced, the power density of the energy-taking power supply is increased, and the heat dissipation speed is increased. According to the invention, the plurality of voltage-sharing modules are connected in series for voltage division, so that normal operation of the sub-modules can be maintained under the condition that a single power supply loop fails, the modular energy-taking power supply can adapt to higher working voltage, the sub-modules are prevented from using expensive power devices, and the cost of the sub-modules is reduced.

The invention provides a transmission speed automatic adjustment control circuit. The three detection branches detect whether there are transmitted articles at three positions on the transmission line and send out position detection signals when detecting the articles. The three speed regulation branches comprise resistors R1, R2 and R3 and relays K1, K2 and K3, electromagnetic coils of the relays receive position detection signals sent by the detection branch, and normally open contacts are closed when receiving the position detection signals. The output branch comprises a resistor R4 and a resistor R5, and a control signal output port is arranged between the resistor R4 and the resistor R5. On one hand, the conveying speed can be automatically and gradually increased when article conveying begins, it can be guaranteed that articles are stably placed, it can be guaranteed that the articles are conveyed at a high speed when the number of the conveyed articles is the maximum, and the conveying efficiency is improved; on the other hand, the transmission speed can be automatically and gradually reduced when transmission is about to be finished, the transmission mechanism can stably stop at a low speed when transmission is finished, and mechanical structure damage caused by high-speed sudden stop is avoided.

The invention discloses a power converter circuit protection system, which comprises an internal protection circuit module and an external protection circuit module, and is characterized in that the internal protection circuit module comprises an internal overcurrent protection circuit, an overheating protection circuit, an undervoltage protection circuit and an input overvoltage protection circuit; the external protection circuit comprises an external overcurrent protection circuit, a current-limiting protection circuit, an output overvoltage protection circuit and a soft start circuit, and the overcurrent protection circuit is used for limiting the limiting current of the power switch. The switching power supply converter protection circuit has the following advantages that the power supply chip adopts a current control mode, a compensation network is simple, and the reliability is high; an internal protection circuit module and an external protection circuit module do not need too complex peripheral circuits in field application, and a chip does not frequently switch on and switch off through an under-voltage protection circuit and an overvoltage protection circuit under the condition that input voltage fluctuates, so that normal operation of an internal control circuit is protected.

The invention discloses a preparation process of a novel electronic candle, which relates to the technical field of preparation processes of novel electronic candles and comprises an LM358 integrated circuit, an LDR (light dependent resistor), a 1M resistor, a 1K resistor, a light emitting diode, a polar tube, a 10K pot, a 12V female direct-current power jack, a 12V adapter, card paper, a perforated plate and an LM358-operational amplifier comparator. The feedstock processing comprises the following steps: the brain behind the circuit is an LM358IC, which acts as a comparator in this particular design. The sensitivity of the LDR can be adjusted by adjusting the potentiometer, the resistance of the LDR can be increased to megohm and reduced to hundreds of hundreds of hundreds of hundreds of hundreds of hundreds of hundreds of hundreds of hundreds of hundreds of hundreds of hundreds of hundreds of hundreds of hundreds of hundreds of hundreds of hundreds of hundreds of hundreds of hundreds of hundreds of hundreds of hundreds of hundreds of In the dark, the resistance of the LED can be increased to megohm, and compared with a 10K pot, the resistance of the LED can be increased to megohm, so that the LED can emit light.

A calibrable absorbance measurement circuit comprises a signal detection unit, a signal amplification unit and a signal compensation unit; the signal detection unit comprises an incident light detection circuit, a transmitted light detection circuit and a logarithmic operation circuit; the incident light detection circuit is used to detect the light intensity of the incident light; the transmitted light detection circuit is used to detect the light intensity of the transmitted light; the first input end of a logarithmic amplifier IC2 of the logarithmic operation circuit is connected to the output end of the incident light detection circuit via a resistor R3 and an adjustable resistor P1; the second input end of the logarithmic amplifier IC2 is connected to the output end of the transmitted light detection circuit via a resistor R4; the second input end of the logarithmic amplifier IC2 is connected to the output end via a capacitor C3; the output end of the logarithmic amplifier IC2 is connected to the signal amplification unit; the output end of the signal amplification unit is connected to the signal compensation unit; the absorbance is output through the signal compensation unit.

The present application provides a fast charging protection circuit, a fast charging chip, and a fast charging power supply device. The fast charging protection circuit includes a voltage conversion module, a fast charging control module, and a plug-in detection module. The fast charging control module controls the voltage conversion module to output the corresponding fast charging voltage according to the fast charging protocol signal of the external device. The plug-in detection module outputs an unplug signal when it detects that the fast charging protocol signal disappears, wherein the fast charging protocol signal disappears when the external device begins to be unplugged. The fast charging control module controls the voltage conversion module to reduce the output voltage to a preset voltage according to the unplug signal. Among them, the time required from detecting the disappearance of the fast charging protocol signal to starting to reduce the output voltage is less than the time required for the external device to be completely unplugged from the beginning of being unplugged. In this way, the unplugging action of the external device can be detected in advance, and the output voltage can be reduced before the external device is completely unplugged, thereby effectively reducing the overshoot amplitude of the output voltage.

The invention discloses an ozone frequency converter output voltage control method and a related device. The temperature rise of an IGBT (Insulated Gate Bipolar Translator) is reduced. The method comprises the following steps: acquiring a given value VACset; vACset is a given value of the peak value of the load voltage; under the condition that the duty ratio of the output voltage of the ozone frequency converter is assumed to be constant at a preset value, direct-current voltage VDCset required for achieving VACset is determined; judging whether the VDCset is lower than a lower limit value or not; if not, controlling the duty ratio to be constant at the preset value, and performing closed-loop regulation on the direct-current voltage until the deviation between the direct-current voltage and the VDCset is reduced to be within a preset range; if yes, under the condition that it is assumed that the direct-current voltage is constant at the lower limit value, the duty ratio Dset needed for achieving VACset is determined; and controlling the direct-current voltage to be constant at the lower limit value, and performing closed-loop adjustment on the duty ratio until the deviation between the duty ratio and the Dset is reduced to be within a preset range.

The application relates to a linear voltage stabilizer, which comprises a stabilizer input end, a stabilizer output end, a voltage stabilizing circuit and a low-resistance circuit. The stabilizer input end is used for connecting a voltage, the voltage stabilizing circuit is connected with the stabilizer input end and the low-resistance circuit, the low-resistance circuit is connected with the stabilizer output end, and the low-resistance circuit is used for reducing the output resistance of the linear voltage stabilizer. The output voltage is stabilized through the voltage stabilizing circuit, the output resistance is reduced through the low-resistance circuit, the output voltage ripple is reduced, and the purpose of improving the stability of the circuit can be achieved.

The invention belongs to the technical field of motor design and control, and discloses a linear oscillation motor piston stroke induction type additional winding design method, which comprises the following steps of: arranging an additional winding on stator outer teeth of a linear oscillation motor, and starting the additional winding when a working current is introduced into the linear oscillation motor to enable a motor piston to do linear reciprocating motion, permanent magnetic field induced electromotive force is generated in each coil of the additional winding; based on the total permanent magnetic field induced electromotive force generated by superposition of coils of the additional winding, the number of turns of each coil is calculated, the designed additional winding is obtained, and the fundamental wave amplitude of the output voltage of the additional winding corresponds to a piston stroke signal of the linear oscillation motor. The invention further provides a corresponding linear oscillation motor piston stroke observation method and a position-sensorless piston stroke control method of the linear oscillation motor based on the additional winding. According to the invention, the robustness and accuracy of piston stroke observation can be improved while the advantages of small size and high integration level of the linear oscillation motor are kept.

A power supply with an over-temperature derating protection function comprises a first rectification filter circuit, a power factor correction circuit, a power conversion circuit, a second rectification filter circuit, a power factor correction control circuit and a protection circuit. The temperature detection element of the protection circuit is configured to detect an operation temperature of the power supply. When the temperature detection element detects that the operating temperature of the power supply exceeds a predetermined temperature, the switch element is started to reduce the output voltage. The operating temperature of the power supply is reduced by adjusting the voltage in advance to reduce the output power, so that a protection function of stopping power supply due to over-temperature can be prevented from being triggered, the power supply can continuously supply power, and the overall circuit efficiency is effectively improved.

The present invention discloses an adaptive power supply circuit and power supply method of an asynchronous successive approximation analog-to-digital converter, belonging to the field of integrated circuit technology, wherein the asynchronous successive approximation analog-to-digital converter includes a capacitor DAC, a comparator, a delay logic, a successive approximation logic and a counter, and the adaptive power supply circuit includes a reference voltage generating circuit and a digitally controlled LDO, wherein the reference voltage generating circuit is used to provide a reference analog voltage for the capacitor DAC, and the digitally controlled LDO is used to provide an adjustable voltage for the comparator, the delay logic, the successive approximation logic and the counter through the digitally controlled LDO control logic. The present invention can realize automatic calibration of the successive approximation ADC, and can generate a clock number that meets the number of DAC conversion bits at different process temperature angles.

The invention provides a conversion circuit for converting a lithium battery into a dry battery. The conversion circuit comprises a battery cell voltage sampling module, a load current sampling module, an output voltage feedback module and a power management module, two input ends of the power management module are respectively connected with reference voltage and feedback voltage, an output end of the cell voltage sampling module is connected with the reference voltage, an output end of the output voltage feedback module is connected with the feedback voltage, and an output end of the load current sampling module is connected with one of the reference voltage and the feedback voltage. The load current sampling module is used for outputting internal resistance compensation current in direct proportion to load current. According to the conversion circuit, the output voltage can be reduced along with the reduction of the battery voltage and reduced along with the increase of the load current, and the output curve can completely fit the voltage characteristics of the dry battery.

The utility model discloses a multipath isolation power supply voltage controller, relates to the multipath power supply control technology field, and comprises a gear selection module, a control module and a power supply module which are adaptively connected, the control module comprises a plurality of control units, the power supply module comprises a plurality of power supply units, and the power supply units are connected with the gear selection module. The plurality of control units are in one-to-one correspondence with the plurality of power supply units; the gear selection module is used for selecting a target gear from a plurality of preset power supply voltage gears, the control unit comprises a plurality of switch elements, and the plurality of switch elements in the control unit are in one-to-one correspondence with the plurality of power supply voltage gears; in any control unit, the switch element corresponding to the target gear is used for controlling the corresponding power supply unit in the power supply module to output the power supply voltage corresponding to the target gear. The multipath isolation power supply voltage controller provided by the utility model can synchronously adjust the output voltage of multipath power supplies, and has the technical characteristics of high reliability, simple operation and convenient maintenance.

The invention discloses a control method of a synchronous reluctance motor and related components, and relates to the field of motor control, the direct-axis current of the synchronous reluctance motor is used as torque current, the quadrature-axis current is used as excitation current, and the torque current of the synchronous reluctance motor is adjusted according to the actual motor rotating speed and the given motor rotating speed of the synchronous reluctance motor; when the synchronous reluctance motor is in a constant-torque operation area, the absolute value of the excitation current is adjusted to be equal to that of the current torque current of the synchronous reluctance motor, the maximum torque current ratio control is achieved, it is guaranteed that the output voltage is smaller on the premise that the working condition is not affected, and control over the motor is more efficient and saves more energy; when the synchronous reluctance motor is in the weak magnetic operation area, the absolute value of the exciting current is adjusted to be equal to the absolute value of the current torque current of the synchronous reluctance motor, the current torque current of the synchronous reluctance motor is reduced, and the high dynamic response performance of the motor in the weak magnetic operation area is achieved.

This invention discloses a cholesteric liquid crystal display device and its driving method, belonging to the field of display technology. The device integrates a source switching module and an external driving module on a first substrate, respectively connected to the data leads of the driving chip, the external power supply, and the internal data lines. The driving method is executed by a timing control module. First, the external driving module is turned on to initialize the screen using an external high-voltage signal. Then, the system switches to the source switching module, using the low-voltage data signal from the driving chip and writing the image via time-division multiplexing. Finally, the display can be maintained by simultaneously turning off both modules to make the pixels float. This invention achieves safe switching of the driving source through structural innovation, effectively reducing the performance requirements of the driving chip, avoiding current backflow, and significantly reducing the number of chips used.

The invention discloses an inverter system and a direct current side ground short circuit protection method, and relates to the technical field of electronic power, the inverter system comprises a controller, an inverter, an alternating current side device and at least one direct current side device, the at least one direct current side device is connected with a direct current input side of the inverter through a bus capacitor, the alternating current output side of the inverter is connected with alternating current side equipment; the direct current side equipment comprises a direct current conversion module and a controller, and is used for controlling the direct current conversion module to reduce the output voltage of the direct current side equipment under the condition that the direct current input side of the inverter is short-circuited to the ground so as to reduce the voltage of the direct current side equipment for charging the bus capacitor; or the direct current side equipment comprises a bypass switch and a controller, and is used for controlling the bypass switch to be closed under the condition that the direct current input side of the inverter is short-circuited to the ground, so as to disconnect the charging path of the direct current side equipment to the bus capacitor. According to the invention, the overvoltage damage of the bus capacitor can be avoided at high efficiency and low cost when the direct current side is short-circuited to the ground.

The invention relates to the technical field of photovoltaic equipment, and discloses a micro energy storage photovoltaic module which comprises a photovoltaic assembly, a battery assembly and a protection assembly. The photovoltaic module comprises a bottom shell, and a reflective bottom plate is arranged on the bottom shell; the bottom shell is provided with a thin film double-sided photovoltaic panel through a thermal deformation memory alloy plate, and the thin film double-sided photovoltaic panel is located above the reflective bottom plate and used for reflecting light to the back face of the thin film double-sided photovoltaic panel; the thin film double-sided photovoltaic panel is connected with a standard photovoltaic connector lug; the battery assembly is used for storing the electric energy generated by the photovoltaic assembly; the protection assembly comprises a bypass diode, a current-limiting resistor, a bidirectional trigger tube and a reverse isolation diode. The current-limiting resistor, the bidirectional trigger tube and the battery assembly are sequentially connected in series, and the serially connected whole is connected in parallel with the bypass diode; the whole body after parallel connection is connected in parallel with a standard photovoltaic connector lug of the photovoltaic module; the reverse isolation diode is connected in parallel with the bidirectional trigger tube. The method has the advantage of improving the utilization efficiency of the power grid.

The utility model discloses an HID filament lamp compatible with an inductive ballast, which comprises a driving circuit and a filament lamp bulb light bar, and is characterized in that the driving circuit comprises an input protection unit for overcurrent protection and is connected with the inductive ballast; the pre-stage resistance-capacitance voltage reduction unit is connected with the inductive ballast and is used for receiving the output constant power of the inductive ballast and adjusting the output constant power to reduce the voltage and the current; the filtering unit is connected between the output end of the input protection unit and the input end of the pre-stage resistance-capacitance voltage reduction unit and is used for inhibiting electromagnetic interference; the rear-stage voltage doubling rectifying unit is connected with the output end of the input protection unit and the output end of the front-stage resistance-capacitance voltage reduction unit and used for boosting voltage so as to reduce front-stage energy efficiency loss, and a filament lamp bulb light bar is connected to the output end of the rear-stage voltage doubling rectifying unit; the output discharging unit is connected in parallel with the output end of the rear-stage voltage doubling rectifying unit and is used for balancing the discharging current; the utility model has the advantages of realizing perfect compatibility with North America inductance ballasts, improving the energy efficiency and reducing the cost.