61 results about "Regulatory circuit" patented technology

A circuit for using a high voltage gate driver IC (HVIC) for regulation of external floating voltage sources without use of regulation circuits. The circuit including high and low switches; at least one external voltage source coupled to the high and low switches; an HVIC having at least one internal charge pumping voltage source circuit, the HVIC being coupled to gate terminals of the high and low switches; and at least one charge pumping capacitor coupled to the at least one internal charge pumping voltage source circuit for regulating the external voltage of at least one external voltage source.

A phase comparison process in a timing recovery process for high-speed data communication defines a data window and compares the phase of a clock in the window with the phase of an edge of data so as to realize a parallel process, wherein the phase comparison and the process of determining whether a data edge lies within the window are performed in parallel to each other, and the phase comparison result is output only if the data edge lies within the window. With this configuration, it is possible to perform an accurate phase comparison process with no errors without requiring high-precision delay circuits.

A timepiece includes a mechanical movement with a mechanical oscillator and an electronic device for regulating the medium frequency of this mechanical oscillator. It includes an electromagnetic transducer and an electric converter which includes a primary storage unit for powering the regulation circuit. The electromagnetic transducer is arranged to supply a voltage signal exhibiting first voltage lobes in first half-alternations and second voltage lobes in second half-alternations of the oscillations of the mechanical oscillator. The regulating device includes a load pump arranged to transfer electric loads from the primary storage unit into a secondary storage unit, these electric loads being extracted selectively in different time zones according to a time drift detected in the functioning of the mechanical oscillator relative to an auxiliary oscillator, particularly quartz-based.

An energy regulation circuit including a first voltage regulator, a processor, a second voltage regulator, and a controller is provided. The first voltage regulator adjusts an input voltage to generate an adjustment voltage. The processor increases the adjustment voltage according to the input voltage to generate a boost voltage. An energy accumulator is charged according to the boost voltage. The second voltage regulator adjusts the boost voltage to generate an operation voltage. The controller operates according to the operation voltage.

The invention discloses a room temperature terahertz focal plane array bias voltage adjustment circuit and its application method. An amplification circuit, a second second-order low-pass filter circuit, and a room-temperature terahertz focal plane array, and the PC end is connected to the ASIC chip through a USB serial port line. Input the bias voltage command in the PC-side software, under the control of the ASIC chip, calculate the decimal value of the corresponding bias voltage command into the corresponding binary value, and convert the input binary digital signal into a bias voltage command through the D / A converter Analog signal, the bias command analog signal is output to the first second-order low-pass filter circuit for filtering, then enters the non-inverting operational amplifier for amplification processing, and then is filtered and noise-reduced by the second second-order low-pass filter, and then input to the room temperature terahertz coke planar array. The scheme provides an adjustable bias voltage design method, and the bias voltage design circuit has high precision and low noise.

The invention discloses an overvoltage protection circuit and a load voltage regulation circuit. The overvoltage protection circuit comprises a voltage division sampling circuit and a comparison circuit, wherein both ends of the voltage division sampling circuit are respectively connected with both ends of a load, and the sampling output end of the voltage division sampling circuit is used for outputting sampling voltage signals which are used for expressing voltage values at the two ends of the load; a first input end of the comparison circuit is used for receiving the sampling voltage signals, a second input end of the comparison circuit is used for receiving a reference signal, and the reference signal is high-end voltage or low-end voltage of the load; the sampling voltage signals are compared with the reference signal in the comparison circuit; when overvoltage occurs, the output end of the comparison circuit is used for converting high and low levels. The overvoltage protection circuit has the advantages that by using an operation amplifier as the comparison circuit, the load voltage can be regulated to maintain the constant voltage of the load; the overvoltage protection circuit is suitable for multiple topology structures, the compatibility is good, and the complicated peripheral circuit is not needed.

The invention relates to a low-loss regulator circuit for driving the PWM; the invention comprises an LC oscillatory circuit consisting of a driving circuit, a capacitance C and a inductance L which are connected in series, a switch tube T1, a switch tube T2, a capacitance C1, a capacitance C2, an MCU controller and a current sampling magnetic ring; the MCU controller regulates the opening and closing sequence according to the working frequency and the switch tube can reduce the current loss in the opening and closing process. The invention overcomes the defect that the switch tube of the present electronic ballast is great and the temperature rises greatly. The invention changes the state that the working frequency of the present electronic ballast is basically unchanged from the beginning to the end; with the invention, the opening and closing sequence and working frequency are changing in the process of the different operational stages according to the light features.

The invention discloses a short-circuit protection method and device for a voltage regulation circuit, comprising: using an input voltage state confirmation circuit to generate and output an input voltage state signal for indicating the input voltage state; using an output voltage state confirmation circuit to generate and output an input voltage state signal for an output voltage state signal indicating the state of the output voltage; in response to the input voltage state signal indicating that the input voltage is normal and the output voltage state signal indicating that the output voltage is abnormal, the operation signal control circuit is used to control the voltage regulation circuit to stop working. The technical scheme of the present invention can perform short-circuit protection on different voltage regulating circuits or different types of voltage regulating circuits in a targeted manner, improve response speed and reliability, and reduce equipment complexity.

The application discloses an analog signal acquisition circuit, comprising: an amplifying circuit for receiving and amplifying the analog signal; an AD converter connected to the output end of the amplifying circuit; a controller connected to the output end of the AD converter , for judging whether the ratio of the size change range of the digital signal to the total range of the AD converter is lower than the preset ratio, if so, then determine the update value of the amplification ratio of the amplification circuit whose ratio is not lower than the preset ratio, and determine the amplification The parameter update value of the components in the circuit sends a corresponding adjustment signal to the adjustment circuit; the adjustment circuit connected to the output terminal of the controller is used to adjust the parameters of the components in the amplification circuit so that the amplification ratio becomes the amplification ratio update value . The application effectively improves the signal-to-noise ratio of the infrared signal. The present application also discloses a method, device and computer-readable storage medium for collecting analog signals, which also have the above beneficial effects.

Embodiments of the present application provide a voltage detection circuit and electronic equipment. The voltage detection circuit only includes a first voltage regulation circuit, a second voltage regulation circuit, a subtractor, a comparator, and a controller, wherein the first voltage regulation circuit is connected in series to The voltage source to be measured is connected to the first end of the comparator; the second voltage regulation circuit is connected in series to the voltage source to be measured and the first input end of the subtractor; the second input end of the subtractor is connected to the voltage source to be measured, and the subtraction The output terminal of the comparator is connected with the second terminal of the comparator; when detecting the voltage of the voltage source to be measured, the controller first adjusts the output voltage of the second voltage regulating circuit to the first voltage, and then continuously adjusts the output voltage of the first voltage regulating circuit output voltage until the output level of the comparator is switched, and then the voltage value of the voltage source to be tested can be determined according to the output voltage of the first voltage regulating circuit before and after the switching of the output level of the comparator and the above-mentioned first voltage range at a lower cost.