1231 results about "Voltage regulator" patented technology

According to the heterogeneous multi-core chip power consumption state control system and the heterogeneous multi-core chip provided by the invention, the power consumption state request of each sub power supply domain is received through the set system hardware power consumption management module, and the driving signal is sent to the corresponding sub power supply domain according to the preset hardware time sequence, so that the corresponding sub power supply domain enters the target state; generating a PMU control signal; and the power management module drives an internal voltage regulator to execute corresponding regulation operation according to the PMU control signal. A special control processor (SCP) is not needed, the system hardware power consumption management module realized by pure hardware is adopted to directly control the power consumption state of each sub power supply domain in the heterogeneous multi-core SoC, the software processing delay is eliminated, the response speed is high, the static power consumption of the power consumption management module is remarkably reduced, and the system is particularly suitable for an ultra-low power consumption scene and has a wide application prospect. And hardware-level surge current protection is realized in a multi-core power-on process.

The invention belongs to the technical field of analog integrated circuit design and memory read-write, and provides a multi-valued RRAM read-write circuit with a write-and-read function. The multi-valued RRAM read-write circuit is a multi-port device capable of performing read-write simultaneously, in write operation, a low dropout regulator is utilized to provide voltage for the RRAM circuit and the standard resistance circuit, mirror current is generated, the resistance value of the RRAM is set to be the total resistance of the standard resistance circuit, an operational amplifier is connected into the circuit through a CMOS switch, and feedback is formed to stabilize the voltage at the two ends of the RRAM; and in the read operation, the CMOS switch is used for disconnecting the operational amplifier, and the voltage at the two ends of the RRAM device is directly read. Compared with an existing multi-valued read-write circuit, the multi-valued RRAM read-write circuit has the advantages that write-and-read multi-valued RRAM read-write is realized, and meanwhile, the read-write circuit is not separated, so that the write-in speed is increased, and the area of the read-write circuit is saved.

A heel backer shaper comprises a case, a last-compressing ironing base, a last rotation mechanism, a shaping wheel, an automatic selector switch, and a footboard. One side of the upper half of the case is not closed. The last rotation mechanism is disposed on the upper half of the case. The last rotation mechanism comprises a cylinder and a rotary table; the rotary table is disposed at the top of the cylinder; the last-compressing ironing base is disposed on the top inner wall of the case and right faces the rotary table. During heel shaping, the heel backer shaper can adjust the operating performances, such as the position of the shaping wheel on a backer, knocking force, ironing temperature and delay time, according to the quality conditions of a shoe so as to acquire optimal shaping effect; during normal working, the heel backer shaper can operate in an automatic manner; an electrothermal plate on the last-compressing ironing base is controlled via a three-compartment closed-loop controlled silicon voltage regulator, temperature control precision is greatly improved, a temperature difference can be controlled within a 10 DEG C range, and the plane of the shaped backer is flat, with clear edge and smooth wrinkle-free surface.

The ultralow frequency sensor comprises a vibration detection unit, a power supply voltage stabilization unit and a signal conditioning unit, the power supply voltage stabilization unit is provided with a low dropout linear voltage regulator U20, a voltage converter U19 and a negative voltage regulator U21, and the low dropout linear voltage regulator U20 stabilizes an external power supply as a positive power supply VCC; the voltage converter U19 is used for converting positive voltage of an external power supply into negative voltage and outputting stable negative power supply VEE through the negative voltage stabilizer; the positive power supply VCC and the negative power supply VEE supply power to the signal conditioning unit; the signal conditioning unit comprises a high common mode rejection differential amplifier, a differential-to-single-ended amplifier, a band-pass filter and a differential output driver, a differential signal output by the vibration detection unit sequentially passes through the high common mode rejection differential amplifier, the differential-to-single-ended amplifier, the band-pass filter and the differential output driver, and then a differential voltage signal is output; the method has the advantages of high stability and reliability and the like.

The invention belongs to the technical field of electronic circuits, and provides a low-dropout linear voltage stabilizing circuit, a low-dropout linear voltage regulator, a power supply device and electronic equipment. The low-dropout linear voltage stabilizing circuit comprises a bias module, an input module, an intermediate stage module, an output module, a first compensation module and a second compensation module, the intermediate stage module is connected with the input module, the output module, the first compensation module, the second compensation module and the bias module, and the output module is connected with the input module, the first compensation module and a load. The input module is connected with the bias module. According to the application, the first zero point which is positively correlated with the load current and irrelevant to the output voltage is generated through the first compensation module, namely, the first zero point can be increased along with the increase of the load current, is reduced along with the reduction of the load current, and is not influenced by the output voltage; therefore, the tracking compensation of the load current is realized, and the purpose that the tracking compensation effect does not change along with the output voltage is achieved.

The invention relates to the technical field of electronic circuits, in particular to a radio frequency front-end lightning protection circuit and lightning protection equipment. The circuit comprises a primary discharge module, a radio frequency signal protection branch and a direct current power supply protection branch, the input end of the primary discharge module is connected with an antenna port, and the primary discharge module is used for discharging high-energy pulses generated by lightning stroke; the radio frequency signal protection branch is connected between the output end of the primary discharge module and a low noise amplifier of the radio frequency receiving link, and is used for coupling a radio frequency signal to the low noise amplifier and carrying out isolation and voltage limiting on a lightning stroke residual pulse; the direct current power supply protection branch circuit is connected between the output end of the primary discharge module and a power supply voltage stabilizer of the direct current power supply link, and is used for transmitting a direct current power supply to the power supply voltage stabilizer and carrying out isolation and voltage limiting on the lightning stroke residual pulse. The circuit can be combined with a radio frequency front end and used for a navigation antenna, and the lightning stroke protection capability is improved.

A voltage generator including an LDO (low dropout) regulator that supplies a current to an internal voltage node of a sense amplification circuit as feedback control based on a voltage level of the internal voltage node; and a power switch circuit including a plurality of power switches each having one end connected to an external voltage and an opposite end connected to the internal voltage node, and that supplies the current to the internal voltage node as feed-forward control based on a known number of sense amplifiers to be activated. The voltage generator may efficiently supply current according to an operation mode of the sense amplification circuit.

The invention discloses a control method for a self-adaptive voltage-regulating and energy-saving solid-state transformer of a power distribution network, which relates to the technical field of power distribution network regulation and control, and comprises the following steps: firstly, acquiring voltage, current, power and constraint information of a low-voltage side in the operation of the solid-state transformer, detecting natural voltage-regulating events such as superior tapping deflection, voltage regulator action and reactive switching, and performing voltage regulation on the solid-state transformer; establishing an evidence chain record containing a timestamp, a steady-state window and a quality identifier, and not injecting identification disturbance; secondly, intercepting a steady-state window and avoiding a transient state according to an evidence chain, estimating voltage-power elasticity, and performing confusion filtering and quality scoring; constructing a regression baseline in parallel, synthesizing a contrast baseline and an event anchoring calibration baseline, fusing to obtain anti-fact baseline power and uncertainty, and calculating energy saving amount; and finally, according to the uncertainty, the quality score, the end margin and the device constraint gating, the voltage setting is updated, and safe rollback is carried out, so that the energy-saving amount can be audited, the control is more stable, and the out-of-limit risk is reduced.

A 3D semiconductor device including: a first level including a single crystal layer, a memory control circuit, a first metal layer, a second metal layer, and a third metal layer; connection of the first transistors comprises the first, and / or the second, and / or the third metal layer; a fourth metal layer disposed atop third transistors disposed atop second transistors disposed atop said first level; a memory array including word-lines and at least four memory mini arrays which include at least four rows by four columns of memory cells, each of the memory cells includes at least one of the second transistors (at least one with a metal gate) or at least one of the third transistors; a connection path from the fourth metal to the third metal including a via disposed through the memory array; the memory control circuit includes first transistors and voltage regulators.

A light emitting diode (LED) driving system comprises at least one linear current driver configured to regulate current to a plurality of LEDs in a multi-spectral application independently of an electrical load affected by voltage fluctuations across the LEDs; and a programmable input configured to receive a current setpoint signal from a digital-to-analog converter (DAC), which defines a target current through the LEDs. The LED driving system further comprises a programmable voltage regulator configured to output a supply voltage to the least one linear current driver that includes a saturation voltage sufficient for the at least one linear current driver to regulate the current delivered to the plurality of LEDs.

The invention discloses an electrolytic bath on-line monitoring system and electrolysis equipment, the electrolytic bath on-line monitoring system comprises a plurality of distributed integrated acquisition devices, a data collection platform and a real-time monitoring platform, each distributed integrated acquisition device comprises a substrate, a positioning pin, magnetic steel and a shell; the positioning pin is arranged below the shell; the magnetic steel is embedded in the shell; the substrate is arranged in the shell, and a first probe, a second probe, a voltage stabilizing chip, a sensor and a data acquisition unit are integrated on the substrate; the tail end of the first probe is connected with the data acquisition unit through the voltage-stabilizing chip, and the head end of the first probe abuts against the interior of the electrolytic cell; the head end of the second probe abuts against a small electrolysis chamber electrode of the electrolytic bath; the sensor is connected with the tail end of the second probe; the data acquisition unit is connected with the sensor; the data collection platform is connected with the data acquisition unit; and the real-time monitoring platform is connected with the data collection platform. The device is high in integration degree, convenient to install, capable of achieving self-powered operation, comprehensive in monitoring coverage and capable of achieving real-time and accurate monitoring of parameters of the large electrolytic cell.

Techniques and apparatus for swapping a primary power source (e.g., a main battery) while using a secondary power source (e.g., a backup battery or a supercapacitor) to power a portable device. One example integrated circuit (IC) for power management generally includes a first power supply node; a second power supply node; a first port for coupling to a primary power source; a first switch coupled between the first power supply node and the first port; a second port for coupling to a secondary power source; a second switch coupled between the first power supply node and the second port; and a third switch coupled between the first and second power supply nodes. For certain aspects, the IC also includes a third power supply node, a voltage regulator coupled between the first and third power supply nodes, and a fourth switch coupled between the second and third power supply nodes.

The present disclosure proposes a switching power supply, comprising a power supply capacitor, for generating a power supply voltage to supply a control chip of the switching power supply with power, its first end being connected to the power supply terminal of the control chip of the switching power supply, its second end being grounded, and the first end generates a power supply voltage; a linear regulator circuit connected between the first end of the power supply capacitor and a common connection end of the main power transistor and the auxiliary power transistor; wherein, the voltage at the connection end between the main power transistor and the auxiliary power transistor charges the power supply capacitor through the linear voltage regulator The present disclosure can save power consumption, improve the working efficiency of switching power supply, and optimize the EMI of switching power supplies.

An example apparatus includes a first transistor having a control terminal and first and second terminals. The apparatus includes a second transistor having a control terminal and first and second terminals, the second terminal of the second transistor coupled to the second terminal of the first transistor. The apparatus includes a first amplifier having a first input, a reference input, and an output, the first input of the first amplifier coupled to the first terminal of the first transistor, the output of the first amplifier coupled to the control terminal of the first transistor. The apparatus includes a second amplifier having first and second inputs and an output, the first input of the second amplifier coupled to the first terminal of the first transistor, the second input of the second amplifier coupled to the first terminal of the second transistor, and the output of the second amplifier coupled to the control terminal of the second transistor. The apparatus includes a control circuit coupled to the control terminal and the second terminal of the second transistor and coupled to the first transistor, the control circuit capable of adjusting a voltage at the control terminal of the second transistor responsive to a current through the first transistor.

Certain aspects of the present disclosure provide techniques and apparatus for supplying power, including short circuit protection. One example power supply circuit generally includes a switching regulator including an output coupled to a first power supply node, a battery node for coupling to a battery, a switch coupled between the first power supply node and the battery node, a first transistor including a gate coupled to the first power supply node and a source coupled to a reference potential node of the power supply circuit, and a first current source or a resistive element, coupled between a power supply rail and a drain of the first transistor. The power supply circuit may be configured to detect a short circuit on the first power supply node and trigger an automatic fault protection (AFP) mode after completion of a soft start of a voltage on the first power supply node.

The invention relates to the technical field of electrical equipment testing, and discloses a high-precision anti-interference intelligent transformer short-circuit impedance testing machine which comprises an isolation power supply module and a testing host module, an electrostatic shielding layer is arranged in the isolation power supply module, a suspension working power supply isolated from power grid noise is provided for a testing host, and the anti-interference capability is improved from the source. The test host module integrates a power management and inversion module to generate a controllable three-phase AC excitation signal, and the central processing and control module performs closed-loop feedback control on a test current according to a high-precision synchronously acquired signal, so that an external voltage regulator is replaced, and automatic stabilization of a test condition is realized. According to the invention, tedious manual adjustment is not needed, full automation of the testing process is realized, and the precision, repeatability and safety of short-circuit impedance testing are remarkably improved.

The invention discloses a low output voltage detection circuit based on a low dropout linear regulator, relates to the technical field of power supply detection, and realizes accurate detection of an output voltage rising stage through cooperation of a first amplification delay circuit, a second amplification circuit and a first comparison circuit; through cooperation of a third amplification circuit, a fourth amplification time-delay circuit and a second comparison circuit, reliable monitoring of an output voltage drop stage is completed. Wherein the amplification circuit can flexibly adjust the amplification factor to adapt to wide-range output voltage detection; the time delay circuit can accurately regulate and control the signal overturning time sequence, and the system control requirement is met; the comparison circuit and the AND gate circuit construct a rigorous logic control system, and the accuracy of signal output is guaranteed. Through creative combination of the circuit modules, an efficient low-output voltage detection scheme is formed, the technical problem that the voltage establishment state cannot be reflected in a low-voltage scene is thoroughly solved, and accurate detection of the low-output voltage of the LDO is achieved.

The invention discloses a transmission tower angle steel electromagnetic pulse fastening system, which belongs to the technical field of transmission tower angle steel fastening, and is characterized in that a track subsystem is rigidly connected with an operation table to realize movement and position adjustment in an operation environment; the charging control platform comprises a power supply device, a capacitor, an SCR power voltage regulator and voltage sensors, the power supply device is connected with the capacitor, and the voltage sensors are connected to the two ends of the capacitor; the charging control platform regulates and controls the charging process of the capacitor through the SCR power voltage regulator; the electromagnetic pulse generation subsystem is connected with the charging control platform, and the electromagnetic pulse generation subsystem is used for generating electromagnetic pulses to achieve fastening operation of angle steel of the power transmission tower; the monitoring feedback subsystem is used for monitoring the operation state of the transmission tower angle steel electromagnetic pulse fastening system in real time. The electromagnetic pulse technology is combined with the field of angle steel reinforcement, and the problems that existing electromagnetic pulse crimping equipment is inconvenient to move, depends on an external power supply, is inaccurate in charging control, and is difficult to monitor the running state in real time are solved.

The embodiment of the invention provides a multi-power-domain power management method, a power management system and electronic equipment, and relates to the technical field of power consumption management. The method is applied to a power supply normally open domain of the power supply management system, the power supply management system further comprises a main low dropout linear regulator, a plurality of power supply domains, a power supply switch array and an analog domain, the main low dropout linear regulator and the analog domain are connected with an external power supply, and the main low dropout linear regulator is connected with the power supply domains through the power supply switch array. The analog domain comprises a high-speed clock; the method comprises the following steps: in response to a standby mode entering instruction, sending a first control signal to an analog domain to turn off a high-speed clock; sending a group of second control signals to the power switch array to cut off power supply to at least one target power domain; and sending a third control signal to the main low-dropout linear voltage regulator to regulate the main low-dropout linear voltage regulator to enter a low-power-consumption working mode Therefore, the time for entering the low-power-consumption mode can be reduced.

A controller for a multiphase voltage regulator in a multi-rail power supply system has a dynamic overcurrent unit and a switch control circuit. The dynamic overcurrent unit provides an overcurrent threshold based on a system-input current which indicates a total input current of the multiphase voltage regulator and at least another voltage regulator. The switch control circuit provides a plurality of switch control signals to control a plurality of switching circuits of the multiphase voltage regulator, such that an output voltage of the multiphase voltage regulator is regulated to a predetermined voltage level and an output current of the plurality of switching circuits is controlled based on the overcurrent threshold.

The utility model discloses a wireless charging device for an insulated boom truck, which relates to the technical field of engineering machinery manufacturing and comprises a vehicle-mounted wireless transmitting unit arranged on a truck body, a wireless receiving unit and a platform storage battery, the vehicle-mounted wireless transmitting unit is composed of a human-computer interface, a switching power supply, a direct-current voltage stabilizer, a high-frequency inverter, a transmitting coil and a first controller, the vehicle-mounted wireless transmitting unit is connected to a power supply, the wireless receiving unit is composed of a receiving coil, a rectifying module and a second controller, the receiving coil is arranged outside the lifting platform, and the rectifying module is connected with the second controller. The power supply comprises a chassis storage battery integrated on the vehicle body and a mains supply connected with the external part in an inserted manner. The vehicle-mounted wireless transmitting unit is mounted at the tail part of the vehicle body of the insulating bucket arm, and the wireless receiving module is mounted in the vehicle body at the upper end of the insulating arm; and the wireless charging device charges the platform storage battery by using the electric energy of the chassis storage battery.

The utility model discloses a kind of drive circuits, belong to electric bicycle instrument technical field, specifically related to a kind of electric bicycle instrument drive circuit, comprising: conversion module, output filter and high voltage surge suppression module;Output filter and high voltage surge suppression module are connected with conversion module;Conversion module includes: MOS tube Q6, MOS tube Q9, resistance R20, resistance R19, resistance R18, triode Q5 and triode Q10;Output filter includes: inductance L2, electrolytic capacitor C15, electrolytic capacitor C14, capacitor C13;High voltage surge suppression module includes: transient voltage suppression diode D5;The utility model uses wide input voltage range, high-efficiency switching power supply, replaces traditional linear voltage stabilizer, and efficiency is higher, and heat is smaller, and tolerance to input voltage fluctuation is better, while increasing greater capacity input electrolytic capacitor, effectively absorb transient surge and fill transient voltage drop, in addition, TVS diode is used to suppress high voltage surge, and self-recovery fuse is used to prevent overcurrent.

The utility model relates to the technical field of nuclear fusion, and discloses a power supply circuit for an electrostatic probe, which comprises a power supply module and a sampling module, the power supply module is connected with the electrostatic probe through the sampling module, the power supply module comprises a plurality of linear power supply branches which are input in parallel and output in series, each linear power supply branch comprises a linear voltage regulator and a voltage regulating unit, and the input end of each linear voltage regulator is connected with a corresponding external power supply; the output end of the linear voltage regulator is connected with the electrostatic probe through the voltage regulating unit, and the voltage regulating unit corresponding to the last stage of linear voltage regulator is connected between the output end of the current linear voltage regulator and the ground. And the voltage regulating unit corresponding to the previous-stage linear voltage regulator is connected between the output end of the current linear voltage regulator and the output end of the next-stage linear voltage regulator. The power supply voltage with small enough voltage ripple and high enough voltage value can be provided for the plasma acquisition device, and weak ion saturation current signals can be accurately detected.

A device in a chamber is provided. The device comprises at least one die. The at least one die comprise a first voltage generator, a dielectric layer and a first voltage regulator circuit. The first voltage generator is charged to have a first induced voltage by induced charges generated in response to a first voltage of a first electrode of a chuck in the chamber. The dielectric layer surrounds the first voltage generator to isolate the first voltage generator from the first electrode. The first voltage regulator circuit is coupled to the first voltage generator to receive the first induced voltage and generates a first power supply voltage according to the first induced voltage for a first circuit in the device.

The demodulation circuit includes a waveform regulator, a first counter, a second counter, and an SR latch. The waveform regulator generates a regulated modulation signal according to a pair of differential isolated modulation signals, which is generated according to a modulation of an input data signal with a carrier clock signal. The first counter counts cycles of the regulated modulation signal so as to generate a set signal. The second counter counts cycles of a reference clock signal so as to generate a reset signal. The SR latch includes a set terminal for receiving the set signal, a reset terminal for receiving the reset signal, and an output terminal for outputting a demodulated output signal. The SR latch is triggered by the set signal to pull up the demodulated output signal, and is triggered by the reset signal to pull down the demodulated output signal.

This disclosure presents an embodiment of a power supply device for a submarine data center. One specific embodiment of the power supply device includes a pre-stage voltage regulator / conversion component, a post-stage DC-DC converter component, and a combined protection circuit. The pre-stage voltage regulator / conversion component includes several parallel single-group voltage regulator branches, each branch connected in series with a varistor and a color-coded resistor. A thin-film capacitor is connected in parallel to the output terminal of the pre-stage voltage regulator / conversion component. The post-stage DC-DC converter component, electrically connected to the pre-stage voltage regulator / conversion component, includes at least two sets of full-bridge DC synchronous rectifier circuits. The combined protection circuit includes a pre-stage combined protection circuit, a post-stage active voltage clamping circuit connected in parallel to the output side of the post-stage DC-DC converter component, and a rectifier diode bridge connected between the constant current input port and the pre-stage voltage regulator / conversion component. The pre-stage combined protection circuit is connected in series to the input side of the rectifier diode bridge. By connecting multiple voltage regulator branches in parallel and combining them with the combined protection circuit, ripple is reduced. This embodiment can improve the power supply stability of the power supply device.

Phase-redundant voltage regulator device (300) comprising: a plurality of controller phases (126A, 126B, 227A, 227B, 227C, 227D), each containing an electrically connected controller (116) to receive an input voltage at a controller input (240) and to provide a corresponding output voltage at a controller output (242); a control logic (366); and a set of phase groups of the plural controller phases, which contains a first and a second phase group (374, 376), wherein each phase group contains: a common controller input (V IN ), which is electrically connected to the control inputs of the phase group; a common controller output (V1; V2) which is electrically connected to controller outputs of the phase group; at least one redundant control phase; at least one defined controller phase (126A, 126B) from the plurality of controller phases; at least one replacement controller phase (227C; 227D) of a set of replacement controller phases; and a multi-phase controller (MPC) (122) electrically connected to each specified controller phase of the phase group, the MPC being configured to provide phase fault signals (308A, 310A; 308B, 310B) and a shared current phase control signal (I SHARE )(304A, 306A; 304B, 306B), which were received from each specified controller phase of a corresponding phase group, is transmitted to the control logic (366); wherein the set of substitute controller phases from the plural controller phases contains a first and a second substitute controller phase (227A, 227B), wherein each substitute controller phase contains (227A, 227B, 227C, 227D): a secondary output OR switching unit (118A) which is electrically connected and configured to limit the current flow into a secondary output (206) of the substitute controller phase; a first output switching unit (217) configured to electrically connect the controller output (242) of the substitute controller phase to a first common controller output (V1) in response to a first phase enable signal (316A; 316B); and a second output switching unit (219) configured to electrically connect the controller output (242) of the substitute controller phase to a second common controller output (V2) in response to a second phase enable signal (318A; 318B); where the control logic (366) is electrically connected to: MPCs (122) of each phase group (374; 376) of the set of phase groups, wherein the control logic is configured to the I SHARE -receives phase control signals (304A, 306A; 304B, 306B) from the MPCs and exchanges phase error signals (302A, 308A, 310A; 302B, 308B, 310B) with them; and Substitute controller phases (227A, 227B) of the set of substitute controller phases, wherein the control logic is configured to activate phase enable signals (316A, 318A; 316B, 318B) to the substitute controller phases (227A, 227B) as well as I SHARE -Transmits phase control signals (314A; 314B) to these and receives phase error signals (312A; 312B) from them; wherein the control logic is configured to electrically connect a substitute controller phase (227A, 227B) to a phase group (374; 376) containing a failed controller phase (126A, 126B) in response to receiving a phase fault signal (308A, 310A; 308B, 310B) from an MPC (122).

A voltage regulator apparatus (100) is described comprising: i) a power apparatus (150) configured to receive an input signal (151) and to generate a corresponding output signal (152); ii) a comparator apparatus (110) coupled to the power apparatus (150) via a feedback path (140) and configured to receive the output signal (152) as a feedback signal (141) and to generate a comparison feedback signal (112); and iii) a digital modulation apparatus (120) arranged between the comparator apparatus (110) and the power apparatus (150) and configured to digitally modulate the comparison feedback signal (112) and to provide a digitally modulated signal (121) to the power apparatus (150), wherein the digital modulation apparatus (120) comprises: iiia) a delta-sigma (122), iiib) a quantizer (124), and iiic) a feedforward path (128) configured to feedforward the comparison feedback signal (112) outside the delta-sigma (122).

The utility model relates to the technical field of industrial semiconductors, and discloses a device for detecting the working state of a lamp holder of ultraviolet light curing equipment, which integrates temperature, wind pressure and ultraviolet light intensity detection functions by optimizing the structure of a hardware circuit. The circuit comprises a switch type capacitor voltage converter, a linear voltage regulator, a phototriode, an NTC thermistor, a partial pressure sensor and a CAN communication module. Through the bidirectional TVS diode, RC filtering and two-stage voltage stabilization design, the anti-electromagnetic interference capability is improved, and the signal transmission reliability is improved; temperature, wind pressure and illumination detection circuits are integrated on a single board, the structure is simplified, and the space is saved; the standby energy consumption of the sensor is reduced through hardware power management; by comprehensively optimizing the circuit structure and the signal transmission path, the detection reliability of the working state of the lamp holder of the ultraviolet curing equipment is improved.

A semiconductor device includes a first regulator electrically connected to a first power supply line, a second regulator electrically connected to a second power supply line, a control circuit configured to control the first and second regulators, and at least two functional circuit modules electrically connectable to the first power supply line and the second power supply line. When all the functional circuit modules are set to a power-on state (active mode), the control circuit controls the first regulator to output a voltage to the first power supply line and the second regulator to output a voltage to the second power supply line, and when some functional circuit modules are set to a power-off state (standby mode), the control circuit controls the first regulator to output a voltage to the first power supply line and the second regulator not to output a voltage to the second power supply line.