New devices and methods for producing a precision current source or sink with programmable slew rate are disclosed. For example, an electronic circuit capable of providing precision current control including a programmable slew rate is disclosed. For example, the electronic circuit can include a constant current circuit configured to provide a constant current, and a transient current circuit coupled to the constant current circuit at a common electrical node, the transient current circuit configured to sample the constant current of the constant current circuit during a sampling phase, then provide a turn-on programmable slew rate based on the sampled constant current during an active phase.

A power system provides power from a power source to a load via a distribution bus, and includes a DC-DC converter coupled in parallel with a network of switching elements coupled between an output terminal of the power source and the distribution bus. A controller is configured to selectively activate or deactivate the DC-DC converter and each of the switching elements to enable the power source to power the load via the distribution bus. The switching elements may be transistors, and the diodes may be parasitic body diodes of the transistors. The power source may be a battery, such as a rechargeable battery. An output voltage level from the battery may be regulated by the controller as a function of operation of the DC-DC converter and a number of the activated or deactivated transistors.

A power system provides power from a power source to a load via a distribution bus, and includes a DC-DC converter coupled in parallel with a network of switching elements coupled between an output terminal of the power source and the distribution bus. A controller is configured to selectively activate or deactivate the DC-DC converter and each of the switching elements to enable the power source to power the load via the distribution bus. The switching elements may be transistors, and the diodes may be parasitic body diodes of the transistors. The power source may be a battery, such as a rechargeable battery. An output voltage level from the battery may be regulated by the controller as a function of operation of the DC-DC converter and a number of the activated or deactivated transistors.

A controller is disclosed for a voltage regulator module including a power unit and providing an output current, I.sub.out, at an output voltage, V.sub.out, from an input current/voltage and being configured for use in a multi-module voltage regulator having a neighbouring voltage regulator module having a respective output connected in parallel, the controller comprising: a reference voltage source for providing a reference voltage; a current balancing unit, configured to receive a respective output current from the or each neighbouring voltage regulator module and to determine an adjusted reference voltage, from the reference voltage and for balancing the output current with the at least one respective output current; and a control unit configured to use the adjusted reference voltage to control the voltage regulator module, to provide the output current at the output voltage from the input current at the input voltage, based on adaptive voltage positioning regulation.

A power control semiconductor device includes a voltage control transistor, a control circuit, a bias circuit, and external terminals. The voltage control transistor is connected between a voltage input terminal and an output terminal. The bias circuit generates a voltage that operates the control circuit. Output control signals provided from an outside are input to the external terminals to control an output voltage. The control circuit includes an error amplifier and a logic circuit. The error amplifier outputs a voltage corresponding to a potential difference between a reference voltage and a voltage divided by a voltage divider that divides the output voltage. The logic circuit generates: a signal that changes the divided voltage in accordance with the output control signals; and a signal that stops operation of the bias circuit in response to a combination of the output control signals.

A power control semiconductor device includes a voltage control transistor, a control circuit, a bias circuit, and external terminals. The voltage control transistor is connected between a voltage input terminal and an output terminal. The bias circuit generates a voltage that operates the control circuit. Output control signals provided from an outside are input to the external terminals to control an output voltage. The control circuit includes an error amplifier and a logic circuit. The error amplifier outputs a voltage corresponding to a potential difference between a reference voltage and a voltage divided by a voltage divider that divides the output voltage. The logic circuit generates: a signal that changes the divided voltage in accordance with the output control signals; and a signal that stops operation of the bias circuit in response to a combination of the output control signals.

This document discusses, among other things, a signal receiving circuit, configured to receive an input voltage signal. The signal receiving circuit can comprise an input voltage regulating circuit and a comparing circuit. The input voltage regulating circuit can carry out a waveform pre-regulation for the input voltage signal to obtain a first voltage signal, and the comparing circuit can compare the first voltage signal with a second voltage signal, and output a comparison voltage signal having a pulse width that satisfies a first predetermined condition indicative that the input voltage signal is correctly identifiable. The present document further discusses a signal detecting circuit and a signal receiving method.

This document discusses, among other things, a signal receiving circuit, configured to receive an input voltage signal. The signal receiving circuit can comprise an input voltage regulating circuit and a comparing circuit. The input voltage regulating circuit can carry out a waveform pre-regulation for the input voltage signal to obtain a first voltage signal, and the comparing circuit can compare the first voltage signal with a second voltage signal, and output a comparison voltage signal having a pulse width that satisfies a first predetermined condition indicative that the input voltage signal is correctly identifiable. The present document further discusses a signal detecting circuit and a signal receiving method.

A device includes a first transistor connected between a first node and an output terminal and a first current source connected between the first node and a supply rail. A circuit includes a second current source connected between the supply rail and a second node, an operational amplifier having a non-inverting input configured to receive a potential set point, and a second transistor connected between the second node and an inverting input of the operational amplifier. An output of the operational amplifier is connected to a control terminal of the second transistor and further connected to a control terminal of the first transistor.

A regulator includes a switch array, a feedback circuit, first and second voltage-controlled oscillators, and a switch driver. The switch array generates an output voltage based on a number of enabled switches from among a plurality of switches. The feedback circuit generates a feedback voltage which depends on a level of the output voltage. The first voltage-controlled oscillator generates a first signal having a first frequency which depends on a difference between a reference voltage and the feedback voltage. The second voltage-controlled oscillator generates a second signal having a second frequency which depends on a difference between the feedback voltage and the reference voltage. The switch driver determines a turn-on time point of each of the plurality of switches based on the first signal and determining a turn-off time point of each of the plurality of switches based on the second signal.