Patent classifications
H03K5/023
CLOCK SIGNAL BOOST CIRCUIT
A clock signal boost circuit includes a first NMOS transistor having a drain to a power terminal, a source to a first node, and a gate to a first terminal, a second NMOS transistor having a drain to the first node, a source to a GND, and a gate to a second terminal, a third NMOS transistor having a drain to the power terminal, a source to a second node, and a gate to the second terminal, a capacitor between the first node and the second node, a PMOS transistor having a source to the second node, a drain to an output terminal, and a gate to the second terminal, and a fourth NMOS transistor having a drain to the output terminal, a source to the GND, and a gate to the second terminal. The first and the third NMOS transistors are depletion type NMOS transistors.
Pulse amplifier
Various aspects of amplifying amplitude of a pulse are disclosed herein. In sonic embodiments, a device includes driver circuitry that receives an input pulse swinging or transitioning between a first reference voltage and a second reference voltage higher than the first reference voltage, In some embodiments, the driver circuitry generates a driving pulse swinging between a third reference voltage and the second reference voltage according to the input pulse, where the third reference voltage is between the first reference voltage and the second reference voltage. In some embodiments, the device further includes a transistor coupled to the driver circuitry. In some embodiments, the transistor outputs an output pulse swinging between the first reference voltage and an output voltage according to the driving pulse from the driver circuitry, where the output voltage is higher than the second reference voltage.
CLOCK SYNTHESIZER
A clock synthesizer is provided. A clock buffer is configured to store an input clock signal. A Duty Cycle Corrector (DCC) circuit is connected to the clock buffer. The DCC circuit is configured to receive the input clock signal from the clock buffer, receive a control signal, and adjust a duty cycle of the input clock signal based on the control signal. An output clock signal comprising the duty cycle corrected input clock signal is generated. The output clock signal is provided. A current source is configured to sink a clamping current to the DCC circuit.
SIGNAL RECEIVER CIRCUIT
A signal receiver circuit includes: a negative voltage applier suitable for applying a negative voltage to a common source node in response to a first clock is at a first logic level; a first sampling transistor coupled between the common source node and a first sampling node to sink a current from the first sampling node to the common source node in response to a first input signal; a second sampling transistor coupled between the common source node and a second sampling node to sink a current from the second sampling node to the common source node in response to a second input signal; an equalizer suitable for equalizing the first sampling node and the second sampling node in response to the first clock is at a second logic level; a precharger suitable for precharging a first output node and a second output node with a pull-up voltage in response to a second clock is at the first logic level, and electrically coupling the first output node and second output node to the second sampling node and the first sampling node, respectively, in response to the second clock is at the second logic level; and an amplifier suitable for amplifying a voltage difference between the first output node and the second output node in response to the second clock is at the second logic level.
Compensation circuit
A compensation circuit configured for coupling to a voltage source and a reference circuit. The voltage source is configured for supplying a supply voltage to the compensation circuit and the reference circuit. The reference circuit includes a first circuit node and a reference output electrically coupled to the first circuit node for outputting a reference signal having a constant reference amplitude. The compensation circuit includes a transient converter for converting a first transient perturbation of the supply voltage into a first compensation electrical signal proportional to said first transient perturbation, and an adder coupled to the transient converter for adding the first compensation electrical signal to an electrical signal at the first circuit node with a first polarity opposite to a disturbance polarity of a disturbance of the electrical signal in response to the first transient perturbation.
Signal correction circuit and server
A signal correction circuit and a server are provided. The circuit comprises: a first signal processing component receiving an input signal and positive power supply voltages and negative power supply voltages, generating a first control voltage, and outputting a first voltage, the first voltage being zero within a first time period; a second signal processing component generating a second control voltage according to the first control voltage, performing energy storage charging according to the second control voltage, controlling an energy storage charging voltage according to the second control voltage, and outputting a second voltage, and the second voltage being zero in the second time period; and an output component performing superposition processing on the first voltage and the second voltage to obtain an output signal.
SEGMENTED SELECTABLE SIGNAL CONDITIONING CIRCUIT AND MEASUREMENT DEVICE
A segment selectable signal conditioning circuit and a measurement device are provided. The circuit outputs respective voltage threshold signals through various voltage threshold sub-circuits. The voltage threshold signals are preset to have different threshold values. Each segment voltage conditioning sub-circuit conditions the input voltage signal according to the corresponding conduction signal to obtain a corresponding output voltage signal. The selection circuit receives the input voltage signal and each voltage threshold signal, and compares the voltage value of the input voltage signal to the threshold value of each voltage threshold signal respectively, and outputs the corresponding conduction signal based on the comparison result to achieve segment selectable voltage signal conditioning.
CURRENT SUBTRACTION CIRCUITRY
An electronic device may include a sensing circuit and a current subtraction circuit. The sensing circuit may output first and second current signals. The current subtraction circuit may mirror the first and second current signals onto first and second current branches. The second current branch may be split into a first sub-path and a second sub-path. An amplifier may control the amount of current flowing through the second sub-path by forcing the current flowing through the first current branch and the current flowing through the first sub-path to be identical. Configured in this way, the current flowing through the second sub-path will be equal to the difference between the first and second current signals. The current flowing through the second sub-path may be optionally amplified using another current mirror.
Control of bias current to a load
A circuit portion comprises a load circuit portion and a bias circuit portion. The load circuit portion comprises a load transistor. The bias circuit portion comprises a replica transistor matched to the load transistor and connected to the load transistor at a node such that when a current flows through the replica transistor, a current proportional to the current through the replica transistor flows through the load transistor. The bias circuit portion also comprises a current input for receiving an input current, a supply voltage input for receiving a supply voltage, and a feedback loop arranged to: adjust a voltage at the node connecting the replica transistor and the load transistor such that the replica transistor conducts a current proportional to the input current, and counteract variations in the voltage at the node connecting the replica transistor and the load transistor arising from changes in the supply voltage.
High-speed current comparator suitable for nano-power circuit design
Systems and methods according to one or more embodiments are provided for a current comparator with biasing circuitry to provide for low power consumption and high-speed performance. In one example, a system includes an input port to receive a current pulse and an amplifier configured to provide a voltage pulse at an output port in response to the current pulse. The system also includes a first biasing circuit coupled between the output port and the input port to selectively limit a voltage at the input port. The system further includes a second biasing circuit coupled to the amplifier to selectively adjust a bias of the amplifier.