Commissariat &#xc0; L'&#xc9;nergie Atomique Et Aux &#xc9;nergies Alternatives

Semiconductor Components Industries, LLC

Anthony Quelen

Patrick Bernard

Christian Perrin

A voltage divider circuit includes at least two FDSOI transistors (TP, TP) of a first type connected to a first supply potential and arranged in a current mirror structure, two FDSOI transistors (TN, TN) of a second type and an electrical load (R), the drain of a first—respectively second—transistor (TN) of the second type being connected to the drain of a first—respectively second—transistor (TP) of the first type, the drain of the first transistor of the second type being connected to the front-face gate of this same transistor, the front-face gates of the first and second transistors of the second type being connected to one another, the source of the first transistor of the second type being connected to a second supply potential and the load being placed between the source of the second transistor of the second type and the second supply potential. The back-face gates of the first and second transistors of the second type (TN) are connected to an external circuit applying an input voltage between these two back-face gates, the voltage across the terminals of the load (V) constituting an output voltage equal to a fraction of the input voltage.

Self-biased or biasing transistor(s) for an electronic voltage divider circuit, using insulating thin-film or FDSOI (fully depleted silicon on insulator) technology

An interface electronic circuit between an energy harvesting stage is provided with an inductor and a charging stage, the interface electronic circuit having a regulation circuit capable of servo-controlling an average input impedance value of the interface electronic circuit to a predetermined optimum impedance value.

Circuit for servo-controlling the input impedance of an interface of a harvester

A transistor biasing circuit including a first controller configured to receive a sensor signal generated based on the performance of one or more transistors of a digital circuit and to compare the sensor signal with a reference signal and to generate a first biasing voltage control signal; a first actuator configured to generate a first biasing voltage based on the first biasing voltage control signal; a second actuator configured to generate a second biasing voltage based on a second biasing voltage control signal; and a second controller configured to generate the second biasing voltage control signal based on an intermediate voltage level generated based on the first and second biasing voltages.

Control circuit for transistor biasing

A voltage selection circuit, including: first and second nodes of application of first and second input voltages; a third output voltage supply node; first and second MOS transistors respectively coupling the first and third nodes and the second and third nodes; and a control circuit capable of keeping the first and second transistors either respectively on and off or respectively off and on, the control circuit including a feedback loop from the third node to the gate of the first transistor and being capable, during a transition phase, of controlling the first transistor in linear operating region to apply a DC voltage ramp to the third node.

Circuit for selecting a power supply voltage having a controlled transition

An FDSOI reference voltage generation circuit, including a CTAT current generation circuit; a PTAT-type voltage generation circuit including a first branch including first and second series-connected transistors, the front surface gates of the first and second transistors being connected to the conduction node of the second transistor opposite to the first transistor; a third diode-assembled transistor having a conduction node connected to an output node of the PTAT voltage generation circuit and having its other conduction node forming a reference voltage supply node; and a current mirror; wherein the first and second transistors are of LVT type and the third transistor is of RVT type.

Reference voltage generation circuit

An audio amplifier system ( ) is formed to include a voltage reference ( ). The voltage reference ( ) is formed to utilize a filter having a first cut-off frequency when the output ( ) of the voltage reference ( ) is less than a first value and to use a second cut-off frequency when the output ( ) is greater than the first value.

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Seyssins, France

Anthony Quelen