H03K17/14

APPARATUS AND APPROACH TO ACTIVELY BALANCE THERMAL PERFORMANCE OF PARALLELED DEVICES
20220158543 · 2022-05-19 ·

The present invention provides an apparatus to actively balance the thermal performance of paralleled power devices, comprising: a monitoring unit for monitoring the temperature of each power device of the paralleled power devices to judge whether the temperature is out of balance; and a balancing unit for adjusting power loss of the power devices with monitored higher temperatures so as to achieve the balance of the thermal performance of the paralleled power devices.

Devices configured to conduct a power gating operation
11336282 · 2022-05-17 · ·

A device includes a power gating signal generation circuit, a clock interrupt signal generation circuit, and a shift clock generation circuit. The power gating signal generation circuit configured to generate a power gating signal based on a mode entry signal and a mode exit signal to perform a power gating operation. The clock interrupt signal generation circuit configured to generate a clock interrupt signal based on the mode entry signal and the power gating signal to perform a clock interrupt operation. The shift clock generation circuit configured to generate a shift clock signal supplied to an internal circuit based on the power gating signal and the clock interrupt signal.

TEMPERATURE CONTROL FOR POWER DEVICES

In a described example, a circuit includes a power device having voltage inputs and a command input. A sensing circuit has a sensor input and a sensor output, in which the sensor input is coupled to the power device. A control circuit has a control input and a control output, in which the control input coupled to the sensor output. A driver circuit has a driver input and a driver output. The driver input is coupled to the control output, and the driver output is coupled to the command input of the power device.

Circuit for generating a temperature dependent output

The present disclosure provides a circuit for generating a complimentary to absolute temperature (CTAT) voltage reference. The primary contributor to the voltage reference is first bipolar junction transistor, which is configured in diode mode, to produce the CTAT voltage. Such references include a non-linear component. A pair of bipolar junction transistors are coupled to the first bipolar junction transistor, and are configured to generate a delta base-emitter voltage. By coupling one of the pair to a proportional to absolute temperature current source, and the other to a current course which is substantially independent of absolute temperature, a further non-linear component is introduced, which is complimentary to the non-linear component introduced by the first bipolar junction transistor. The pair of bipolar transistors share a common emitter area size. As such, the non-linear component of the first bipolar junction transistor is compensated by the delta base-emitter arrangement, resulting in a more linear output.

Circuit for generating a temperature dependent output

The present disclosure provides a circuit for generating a complimentary to absolute temperature (CTAT) voltage reference. The primary contributor to the voltage reference is first bipolar junction transistor, which is configured in diode mode, to produce the CTAT voltage. Such references include a non-linear component. A pair of bipolar junction transistors are coupled to the first bipolar junction transistor, and are configured to generate a delta base-emitter voltage. By coupling one of the pair to a proportional to absolute temperature current source, and the other to a current course which is substantially independent of absolute temperature, a further non-linear component is introduced, which is complimentary to the non-linear component introduced by the first bipolar junction transistor. The pair of bipolar transistors share a common emitter area size. As such, the non-linear component of the first bipolar junction transistor is compensated by the delta base-emitter arrangement, resulting in a more linear output.

THRESHOLD DETECTOR OF A POWER ON RESET CIRCUIT WITH IMPROVED ACCURACY FOR SWITCHING LEVELS OVER TEMPERATURE VARIATIONS
20220131538 · 2022-04-28 ·

A power on reset circuit includes a threshold detector circuit. The threshold detector circuit includes a power supply voltage, a voltage comparator, first circuitry, second circuitry, and third circuitry. The voltage comparator has first and second input terminals, and an output terminal to provide a reset signal. The first circuitry is operable to convert the power supply voltage to a sensed current, and provides a positive temperature coefficient to the sensed current. The second circuitry is operable to generate, based on the sensed current, a temperature-dependent voltage corresponding to the power supply voltage and to couple the temperature-dependent voltage to the first input of the voltage comparator. The third circuitry is operable to generate, based on the sensed current, a reference voltage and to couple the reference voltage to the second input of the voltage comparator.

THRESHOLD DETECTOR OF A POWER ON RESET CIRCUIT WITH IMPROVED ACCURACY FOR SWITCHING LEVELS OVER TEMPERATURE VARIATIONS
20220131538 · 2022-04-28 ·

A power on reset circuit includes a threshold detector circuit. The threshold detector circuit includes a power supply voltage, a voltage comparator, first circuitry, second circuitry, and third circuitry. The voltage comparator has first and second input terminals, and an output terminal to provide a reset signal. The first circuitry is operable to convert the power supply voltage to a sensed current, and provides a positive temperature coefficient to the sensed current. The second circuitry is operable to generate, based on the sensed current, a temperature-dependent voltage corresponding to the power supply voltage and to couple the temperature-dependent voltage to the first input of the voltage comparator. The third circuitry is operable to generate, based on the sensed current, a reference voltage and to couple the reference voltage to the second input of the voltage comparator.

Adaptive anti-aging sensor based on cuckoo algorithm

An adaptive anti-aging sensor based on a cuckoo algorithm, comprising a control module, a reference voltage-controlled oscillator, two shaping circuits, a frequency difference circuit, a resolution adjustment circuit, a 16-bit counter, a parallel-to-serial circuit, an adaptive module, and a digital-to-analog converter. A lookup table is prestored in the adaptive module; when aging monitoring is performed on a voltage-controlled oscillator in an integrated circuit, the adaptive module uses the cuckoo algorithm to determines the optimal working voltage of the currently monitored voltage-controlled oscillator, and the control module accordingly changes the input voltage of the voltage-controlled oscillator of the integrated circuit. The present invention has the advantages that the degree of aging of the integrated circuit is reflected by monitoring the degree of aging of the voltage-controlled oscillator in the integrated circuit, and the optimal working voltage of the voltage-controlled oscillator in the integrated circuit is adaptively adjusted.

Voltage detection circuit and power-on reset circuit
11316514 · 2022-04-26 · ·

A voltage detection circuit includes a first transistor and a first resistor connected in series between a power supply voltage node and a reference voltage node, a second transistor and a second resistor connected in series between the power supply voltage node and the reference voltage node, a third transistor and a third resistor connected in series between the power supply voltage node and the reference voltage node, and a signal generator that outputs a signal corresponding to a voltage of a connection node between the third transistor and the third resistor. The second transistor is first turned on among the first to third transistors and a voltage level of the power supply voltage node increases, turning off the third transistor, and then a current flows through the first transistor and the first resistor. When the third transistor is turned on, the signal generator changes a logic of the signal.

Voltage detection circuit and power-on reset circuit
11316514 · 2022-04-26 · ·

A voltage detection circuit includes a first transistor and a first resistor connected in series between a power supply voltage node and a reference voltage node, a second transistor and a second resistor connected in series between the power supply voltage node and the reference voltage node, a third transistor and a third resistor connected in series between the power supply voltage node and the reference voltage node, and a signal generator that outputs a signal corresponding to a voltage of a connection node between the third transistor and the third resistor. The second transistor is first turned on among the first to third transistors and a voltage level of the power supply voltage node increases, turning off the third transistor, and then a current flows through the first transistor and the first resistor. When the third transistor is turned on, the signal generator changes a logic of the signal.