86 results about "Regulatory circuit" patented technology

A motor power source regulation circuit, a control method and an electronic device are provided. The motor power source regulation circuit includes a power factor correction circuit, an isolation circuit, a first power source conversion circuit, a second power source conversion circuit and a control circuit. The isolation circuit includes a first switch sub-circuit and an isolation transformer. The power factor correction circuit regulates an AC input signal to a first DC signal. The first switch sub-circuit converts the first DC signal to a first AC signal. The isolation transformer converts the first AC signal to two or more second AC signals. The first power source conversion circuit converts the second AC signal to a DC drive signal and outputs it to a DC motor. The second power source conversion circuit converts the second AC signal to an AC drive signal and outputs it to an AC motor.

A voltage regulation circuit, device, and method are disclosed, which relate to the field of electronic technologies, to reduce a voltage regulation time, and improve a system response and user experience. The voltage regulation circuit (1) includes: a first power supply circuit (11), configured to receive a voltage setting signal (SSET), and output a first supply voltage (V1) and a second reference voltage (VREF2) according to the voltage setting signal (SSET) and a difference between a first feedback voltage (VF1) and a second feedback voltage (VF2), where the first feedback voltage (VF1) is used to indicate the first supply voltage (V1), and the second feedback voltage (VF2) is used to indicate a second supply voltage (V2); and a second power supply circuit (12), configured to output the second supply voltage (V2) based on the second reference voltage (VREF2).

This invention discloses a charge regulation circuit and related products. The charge regulation circuit is used to regulate the neutralization current during the stimulation and neutralization cycle of nerve tissue. The charge regulation circuit includes an accumulation charge storage module that stores the charge accumulated on the nerve tissue due to stimulation and neutralization, and generates a first voltage based on the accumulated charge. A first voltage acquisition module acquires the first voltage in real time during the neutralization process on the nerve tissue. A first control module outputs a first control signal in response to the first voltage meeting a first preset condition, and outputs a second control signal when the first voltage meets a second preset condition. The charge regulation module adjusts the parameters of the neutralization current on the nerve tissue according to the first or second control signal to make the charge amounts of the two oppositely polarized charges accumulated on the nerve tissue equal. This solution can achieve long-term charge balance.

The application discloses a current regulating circuit, a first control module is arranged between the gate of a first PMOS and the gate of a second PMOS, when receiving a first closing instruction, the first control module controls the gate of the second PMOS to be connected with the gate of the first PMOS, the second PMOS is turned on, the first PMOS and the second PMOS are connected in common-gate to form a current mirror and output current; when receiving a first opening instruction, the first control module controls the second PMOS to be turned off, and the second PMOS cannot output current. When the second PMOS is turned on, the current output by the drain of the second PMOS directly flows into the output end of the current regulating circuit, the second PMOS is prevented from being affected by the on-voltage drop, so that the second PMOS stably works in a saturation region, the working condition of the second PMOS as the current mirror is met, and the stability of the current regulating circuit is ensured.

The invention discloses an efficient and energy-saving electromagnetic control circuit, belonging to the technical field of contactors, comprising: a full-bridge drive chip U1 for controlling the function of the contactor, an energy storage circuit connected to a power supply, a voltage stabilizing circuit connected to the energy storage circuit and stabilizing an input voltage and sending it to the full-bridge drive chip U1, a voltage signal detection and regulation circuit connected to the power supply and used for detecting and regulating the input voltage signal and filtering overvoltage protection, a three-level inverter connected to the voltage signal detection and regulation circuit, a pull-in delay regulation circuit for controlling the output of the pull-in voltage so that the coil of the contactor KM is energized in the forward direction and then delayed to be turned off, and a release delay regulation circuit for controlling the output of the release voltage so that the coil of the contactor KM is energized in the reverse direction and then delayed to be turned off; the efficient and energy-saving contactor control circuit has obvious energy-saving effect, and the energy-saving effect can reach more than 98%; and single-line inching control opening and closing is realized.

Examples of the present disclosure provide a level shifter, a memory, a memory system, and an electronic apparatus. The level shifter includes: an input circuit, a shifter and an output circuit that are coupled sequentially, wherein the input circuit is configured to generate a first input signal in response to a first level signal; and a regulation circuit coupled to the input circuit and the shifter separately, wherein the regulation circuit is configured to regulate a first control signal output by the shifter in response to the first input signal, wherein a voltage domain of the shifter is different from a voltage domain of the input circuit; and the output circuit is configured to output a second level signal in response to the regulated first control signal, wherein a voltage level of the second level signal is higher than a voltage level of the first level signal.

The present disclosure provides a primary side feedback converter and a dynamic response optimization method and device thereof. The device comprises a synchronous rectification driver, a synchronous rectification tube and a regulating circuit. The drain of the synchronous rectification tube is connected to the drain voltage input end of the regulating circuit. The source of the synchronous rectification tube is connected to the source voltage input end of the regulating circuit. The drain voltage output end of the regulating circuit is connected to the drain voltage input end of the synchronous rectification driver. The source voltage output end of the regulating circuit is connected to the source voltage input end of the synchronous rectification driver. The drain voltage and the source voltage of the synchronous rectification tube are input into the regulating circuit. The drain voltage and the source voltage are processed by the regulating circuit and output as regulated drain voltage and source voltage. The regulated drain voltage and source voltage are input into the synchronous rectification driver to trigger the synchronous rectification driver to output the driving control signal of the synchronous rectification tube.

A voltage regulator includes a pre-regulation circuit and a low drop-out voltage regulator. The pre-regulation circuit is configured to generate a first power supply voltage based on an input voltage. The low drop-out voltage regulator is configured to generate a second power supply voltage based on the first power supply voltage. Additionally, the low drop-out voltage regulator is configured to filter a low-frequency component of the first power supply voltage.

A voltage regulating system comprises a voltage regulator and an overshoot and undershoot regulating circuit. The voltage regulator includes a gate terminal having a gate voltage, and an output terminal having an output voltage. The overshoot and undershoot adjusting circuit comprises an inverting amplifier and a capacitor. The inverting amplifier has an output end for outputting a feedback voltage in response to the change of the output voltage. The capacitor has a first terminal coupled to the gate terminal and a second terminal coupled to the output terminal of the inverting amplifier.

The present invention provides an SRAM word line voltage regulation circuit, comprising: a first n-input NAND gate, whose input receives a row decoding signal from a word line decoding circuit; a first PMOS transistor, whose source is connected to a power supply voltage, and whose output signal from the first n-input NAND gate passes through two stages of inverters and is then input into the gate of the first PMOS transistor; a second n-input NAND gate, whose input receives the row decoding signal; a NOR gate, whose input receives the output signal of the second n-input NAND gate and a read / write control signal; and a second PMOS transistor, whose source and drain are short-circuited and connected to the drain of the first PMOS transistor, and which outputs the regulation signal from the word line decoding circuit. The output signal from the NOR gate passes through a single stage of inverters and is then input into the gate of the second PMOS transistor. The present invention can control the SRAM word line voltage without requiring an external control signal, reducing the circuit's control difficulty. Furthermore, by using the second PMOS transistor for charging, capacitors can be eliminated, thereby reducing occupied area.

A pen for interacting with a touch screen of a computing device includes an alternating current coupling circuit and a sense-regulation circuit. The alternating current coupling circuit receives a sense signal from the touch screen. The alternating current coupling circuit transmits a transmit signal to the touch screen. The sense-regulation circuit generates a comparison signal based on the sense signal and a representation of transmit data. The sense-regulation circuit converts the representation of the transmit data into the transmit signal.

A first voltage regulation circuit is coupled to a second voltage regulation circuit. Control circuitry is coupled to the first voltage regulation circuit and the second voltage regulation circuit. The control circuitry determines that a signal criterion is met, and controls application of a voltage signal generated by the second voltage regulation circuit to stabilize a voltage signal generated by the first voltage regulation circuit.

The present application discloses a driving control circuit of a power transistor, a lighting control circuit and a lighting circuit. The control circuit includes a protocol conversion circuit and a driving regulation circuit. The protocol conversion circuit stores received input data signal as multi-channel digital signals and converts the multi-channel digital signals into a plurality of regulation parameters. The driving regulation circuit adjusts the driving current and driving voltage of the power transistor according to a plurality of regulation parameters so as to match various types of power transistors. The control circuit according to the present disclosure converts the input data signal into a plurality of regulation parameters, adjusts the driving current and driving voltage of the power transistor to match various types of power transistors, and improves driving capability, compatibility, and adaptability of the circuit.

Disclosed herein is a circuit for regulating current flow and power dissipation. The circuit includes a power transistor generating a load current, a sense transistor producing a scaled version of the load current, and a regulation circuit equalizing drain-to-source voltages of both transistors. A current comparison circuit generates a feedback current based on the difference between a reference current and the scaled load current. A feedback circuit adjusts the power transistor's control voltage based on this feedback current. When the scaled load current is below the reference current, the feedback circuit decreases the power transistor's on-resistance, reducing power dissipation. Conversely, when the scaled load current exceeds the reference current, the feedback circuit increases the power transistor's on-resistance, limiting current flow. This dynamic adjustment mechanism optimizes power efficiency and current regulation, making the circuit suitable for applications requiring precise current control and minimal power loss.

A backup power device includes a power board and a regulation board. The regulation board is perpendicularly disposed on a surface of the power board. The power board includes a conductive wire and a switching component. The regulation board includes a semi-closed Rogowski coil and a regulation circuit. The semi-closed Rogowski coil crosses the conductive wire, and is configured to: induce a current in the conductive wire and generate an induction signal. The regulation circuit is configured to performing operation processing on the induction signal for output. The power board assembly further includes a controller, where the controller is connected to the regulation circuit and the switching component, and is configured to control on or off of the switching component based on an output signal of the regulation circuit.

Disclosed are a control circuit and a circuit of multi-speed ceiling fan with light. The control circuit includes a unidirectional controllable circuit, a bidirectional controllable circuit, and a regulation circuit. The unidirectional controllable circuit is connected to a mechanical switch and a load. The regulation circuit is connected to the unidirectional controllable circuit and the bidirectional controllable circuit, and the bidirectional controllable circuit is also connected to the mechanical switch and the load. The unidirectional controllable circuit is configured to transmit the negative half-wave voltage of the AC power source of the mechanical switch to the load. The bidirectional controllable circuit is configured to transmit both the positive half-wave voltage and the negative half-wave voltage of the AC power source of the mechanical switch to the load.

A regulation circuit includes: an operational amplifier, a first regulation unit, a second regulation unit, a first resistor, and a second resistor. The input of the first regulation unit is adapted to receive a ramp signal, and the output of the first regulation unit is connected to the input of the second regulation unit and the negative input of the operational amplifier. The output of the second regulation unit is connected to the output of the operational amplifier and the first end of the first resistor. The second end of the first resistor is connected to the first end of the second resistor and the output of the regulation circuit. The second end of the second resistor is adapted to be grounded. The first regulation unit includes a sampling capacitor, and the second regulation unit includes a feedback capacitor and a first switch; alternatively, the first regulation unit includes a sampling resistor, and the second regulation unit includes a feedback resistor.

A single-inductor multi-output DC-DC converter includes a regulation circuit that controls a switch to alternately charge at least two capacitors associated with at least two DC output voltages via a single inductor from a DC input port. The regulation circuit determines whether the DC-DC converter operates in continuous conduction mode (CCM) or discontinuous conduction mode (DCM). In CCM mode, the regulation circuit regulates the charging duty cycle of a first output voltage and generates an initial charging duty cycle for each of the other output voltages by scaling the first output voltage duty cycle. In DCM mode, the regulation circuit independently regulates the charging duty cycle of each output voltage and stores each duty cycle to be used for the next charging period of the same output voltage. The regulation circuit detects and handles undershoot and overshoot conditions to accelerate recovery at the output port.

This disclosure provides an adjustment circuit and an amplifier circuit for a stacked power amplifier. The stacked power amplifier includes multiple stacked transistors, with the output of one transistor connected to the input of the next transistor. The adjustment circuit includes: a voltage swing detection module connected to the output of each transistor, comprising a voltage detection unit and a difference unit, for detecting and comparing the voltage swing between the transistor input and output, and outputting multiple voltage swings; a limiting comparison module connected to the voltage swing detection module, for comparing a preset threshold voltage with the voltage swing of any one or more transistors, and outputting a comparison result; the limiting comparison module is connected to a control module, which outputs a control signal based on the comparison result; and an attenuator connected to the input of each transistor, for attenuating the voltage input to the transistor according to the control signal.

A bias circuit includes a control loop, configured to output a bias current to the input end of the RF power amplifier; a regulation circuit, configured to adjust loop bandwidth of the control loop based on Miller effect when it is determined that the bias current output by the control loop can meet a first condition, so that stability and noise suppression degree of the control loop can meet a second condition.

The application provides a regulating device, a memory thereof and a regulator. The regulating device comprises N comparators, a primary regulating circuit and N secondary regulating circuits. A first input end of each comparator is used for inputting a data signal, and a second input end of each comparator is used for inputting a secondary regulating voltage. The primary regulating circuit is used for outputting a primary regulating voltage according to a regulating signal. An output end of each secondary regulating circuit is connected with an output end of the primary regulating circuit, and the output end of each secondary regulating circuit is connected with the second input end of one comparator. Each secondary regulating circuit has a variable resistance, and the maximum equivalent resistance of the variable resistance of each secondary regulating circuit is different. The primary regulating voltage is used for controlling the size of the variable resistance in each secondary regulating circuit, and the size of the variable resistance determines the size of the secondary regulating voltage. The regulating device provided by the application can make the square wave signal output by the comparator optimal.

The present application discloses a voltage regulation circuit, a display panel and a voltage regulation method. The voltage regulation circuit includes a detection circuit, a controller and a power supply circuit. The detection circuit is configured to detect the maximum voltage value and the minimum voltage value of the data voltage within a specific time period. The controller is configured to determine the regulation voltage based on the average voltage value of the maximum voltage value and the minimum voltage value. The power supply circuit is configured to adjust the voltage of the common electrode to the regulation voltage under the control of the controller. The voltage regulation circuit can automatically adjust the voltage of the common electrode according to the average voltage value of the maximum voltage value and the minimum voltage value, thereby avoiding flickering and afterimage problems caused by unstable voltage of the common electrode, and improving product reliability and user experience. In addition, the automatic regulation of the voltage of the common electrode by the voltage regulation circuit also reduces the need for manual adjustment, thereby reducing production costs and improving production efficiency.

The present application provides a current comparison circuit, a control chip, and a master-slave system. The current comparison circuit comprises a voltage regulation circuit, a reference voltage circuit, and a comparison circuit. A current receiving terminal of the voltage regulation circuit receives a current to be measured, a floating ground terminal of the voltage regulation circuit generates a floating ground voltage, a voltage detection terminal of the voltage regulation circuit outputs a detected voltage related to the current to be measured, and the voltage regulation circuit is capable of regulating the floating ground voltage. The reference voltage circuit comprises at least two branches, and the comparison circuit comprises at least two comparators, wherein first input terminals of the two comparators are both connected to the voltage detection terminal, and second input terminals of the two comparators receive different reference voltages, thereby achieving two detected voltage measurements on the basis of transition results of the two comparators. In addition, a voltage domain of the voltage regulation circuit is arranged between a high-voltage power supply terminal and a low-voltage power supply terminal, and voltage domains of the reference voltage circuit and the comparison circuit are arranged between the high-voltage power supply terminal and the floating ground terminal, thereby enabling the comparators to operate in a low-voltage domain, and allowing for reduced chip area and increased comparison speed.

The driver has a current control loop for regulating the output current, which has a controllable configuration comprising an electrical value that influences the conversion function of the converter. A regulation circuit is provided to selectively deliver or not deliver the output current of the converter to the load and to efficiently regulate the load seen by the driver between a first level and a second level. In addition to the output current regulation implemented by the current control loop, this regulation enables for example the PWM control of the output current. Before the regulation circuit changes the load seen by the driver from the first level to the second level, the electrical value of the current control loop is saved; and when the regulation circuit changes the load seen by the driver from the second level back to the first level, the saved electrical value is reapplied to the current control loop. The response time of the current control loop is reduced when controlling the desired output current of the converter. The electrical value is the voltage of a capacitor in the compensation circuit of the error amplifier of the current control loop.

In described examples, a boost converter includes an inductor, a voltage input, a current regulator, an intermediate node, a transistor, and a regulation circuit. The inductor has first and second terminals. The voltage input provides an input voltage, and is coupled to the first inductor terminal. The current regulator has current regulator input and output. The current regulator input is coupled to the second inductor terminal. The current regulator allows current to flow from the current regulator input to the current regulator output, and not vice versa. The intermediate node provides a node voltage. The transistor includes a source, a drain, and a gate. The drain is coupled to the current regulator output via the intermediate node. The regulation circuit includes a first regulation input coupled to receive the input voltage, a second regulation input coupled to the intermediate node, and a regulation output coupled to the gate.

The utility model discloses an adjusting circuit capable of rapidly matching frequency, which comprises a self-excited oscillation circuit, a full-bridge driving circuit and a transmitting antenna, and is characterized in that the self-excited oscillation circuit is electrically connected with the transmitting antenna through the full-bridge driving circuit; the self-excited oscillation circuit comprises an operational amplifier, a first resistor, a second resistor, a third resistor, a fourth resistor, a fifth resistor, a sixth resistor and a first capacitor, in the adjusting circuit capable of rapidly matching the frequency, frequency output of the self-excited oscillation circuit can be achieved by adjusting the resistance value of the first resistor, the function of rapidly matching the frequency is achieved, and meanwhile, the adjusting circuit is convenient to operate. The self-excited oscillation circuit and the full-bridge driving circuit both adopt conventional power components, so that the cost of the adjusting circuit can be greatly reduced, the maintenance cost is also reduced, and the practicability of the circuit is improved.

The invention relates to a voltage regulation system. Control circuitry is coupled to the first voltage regulation circuit and the second voltage regulation circuit. The control circuitry determines that a signal criterion has been met and controls application of a voltage signal generated by the second voltage regulation circuit to stabilize a voltage signal generated by the first voltage regulation circuit. The signal standard is associated with a current level of a current flowing on a power line input to the first voltage regulation circuit, the second voltage regulation circuit, or both.

The present disclosure provides inducible constructs comprising transcription initiation and / or transcriptional regulatory elements. These constructs can be used to drive gene expression in response to specific cellular conditions (e.g., in the context of antigenic stimulation). In some embodiments, the constructs are incorporated as part of regulatory circuits useful for controlling the expression and regulation of cells expressing the engineered receptor.

The utility model discloses a safety switch circuit, which comprises a switch, a first port and a second port which are used for being connected with a positive electrode or a negative electrode of a power supply, a first driving circuit and a second driving circuit which are used for driving the switch, a first holding circuit and a second holding circuit which are used for enabling the switch to be in a self-holding state, and a time control adjusting circuit, the time control adjusting circuit controls the output of the safety switch circuit by limiting the time difference when the first port and the second port are sequentially connected to a power supply, and the first driving circuit, the second port, the time control adjusting circuit and the second holding circuit are connected with each other. The first driving circuit is connected with the time control adjusting circuit through the first port and the second driving circuit, and is also connected with the second driving circuit through the first holding circuit; the output of the circuit is safely set, the time difference of the first port and the second port connected to the power supply is limited, misoperation is avoided, and the safety is high.