公开(公告)号：FR2786338A1

公开(公告)日：2000-05-26

申请号：FR9814918

申请日：1998-11-24

Applicant: ST MICROELECTRONICS SA

Inventor： TEISSIER MAXIME ,  BOURGEOIS JEAN MARIE ,  RAVON JEAN MICHEL ,  BARDOUILLET MICHEL

IPC: H02M1/00 ,  H02M1/42 ,  H02M3/155 ,  H02M1/14

Abstract: The supply circuit comprises a rectifier bridge (1) that rectifies the supplies AC current. The supply circuit enables a continuous high voltage and low voltage supply (V1,V2) comprising a diode first isolated grill bipolar transistor and (D),second MOS transistor. Resistor (R) and Zener diode (Z) regulates the potential across the transistor units.

公开(公告)号：FR2780582A1

公开(公告)日：1999-12-31

申请号：FR9813169

申请日：1998-10-16

Applicant: ST MICROELECTRONICS SA

Inventor： RAVON JEAN MICHEL

IPC: H02M3/155 ,  H02M7/12 ,  H02M3/10

Abstract: The circuit uses an interrupter to regulate the input voltage applied ton an inductor with a midpoint tapping, providing an output on a capacitor. The non-isolated voltage converter is of the type using an interrupted supply. It comprises a capacitor (Ci) on the terminals (Sp, Sn) whose output provide the regulated output voltage (Vout). This voltage is regulated by a control switch (1') providing a current to an inductive element (Li). The circuit includes a further diode (Da) for local supply of the control circuit with the energy from the inductive element. The inductive element includes a midpoint (3') between two windings (n1, n2). The output voltage is less than the local supply voltage of the interrupted supply control circuit.

公开(公告)号：FR2780582B1

公开(公告)日：2001-04-13

申请号：FR9813169

申请日：1998-10-16

Applicant: ST MICROELECTRONICS SA

Inventor： RAVON JEAN MICHEL

IPC: H02M3/155 ,  H02M7/12 ,  H02M3/10

Abstract: The circuit uses an interrupter to regulate the input voltage applied ton an inductor with a midpoint tapping, providing an output on a capacitor. The non-isolated voltage converter is of the type using an interrupted supply. It comprises a capacitor (Ci) on the terminals (Sp, Sn) whose output provide the regulated output voltage (Vout). This voltage is regulated by a control switch (1') providing a current to an inductive element (Li). The circuit includes a further diode (Da) for local supply of the control circuit with the energy from the inductive element. The inductive element includes a midpoint (3') between two windings (n1, n2). The output voltage is less than the local supply voltage of the interrupted supply control circuit.

公开(公告)号：FR2786338B1

公开(公告)日：2001-02-09

申请号：FR9814918

申请日：1998-11-24

Applicant: ST MICROELECTRONICS SA

Inventor： TEISSIER MAXIME ,  BOURGEOIS JEAN MARIE ,  RAVON JEAN MICHEL ,  BARDOUILLET MICHEL

IPC: H02M1/00 ,  H02M1/42 ,  H02M3/155 ,  H02M1/14

Abstract: The supply circuit comprises a rectifier bridge (1) that rectifies the supplies AC current. The supply circuit enables a continuous high voltage and low voltage supply (V1,V2) comprising a diode first isolated grill bipolar transistor and (D),second MOS transistor. Resistor (R) and Zener diode (Z) regulates the potential across the transistor units.

公开(公告)号：FR2785735A1

公开(公告)日：2000-05-12

申请号：FR9814090

申请日：1998-11-05

Applicant: ST MICROELECTRONICS SA

Inventor： RAVON JEAN MICHEL

IPC: H02M7/217 ,  H02M3/07 ,  H02H7/10 ,  H02M1/16

Abstract: The supply comprises a storage capacitor which is charged by a rectified alternating supply, via a switching device. The device is designed to supply a load with a direct current voltage (Vout) from a storage capacitor (12) fed from an rectified alternating high voltage source (Vin). The capacitor (12) receives the rectified voltage (Vin) via a switch (18), without the imposition of an inductive circuit. The switch (18) is controlled by a bi-stable device (24) connected to a opening unit (26), so as to open the switch (18) when the capacitor output voltage (Vout) exceeds a pre-determined level (V1). A closing unit (28), also connected to the bi-stable device (24), closes the switch (18) when the rectified voltage (Vin) exceeds a second pre-determined level (V2). An internal supply unit (22) is fed from the potential difference between the rectified voltage (Vin) and the output voltage (Vout). The bi-stable device (24) and the opening unit (26) are fed from the potential difference (VC1) between the voltage from the unit (22) and the output voltage (Vout). The closing unit (28) is fed from the voltage produced by the internal unit (22).