公开(公告)号：US20220140822A1

公开(公告)日：2022-05-05

申请号：US17577292

申请日：2022-01-17

Applicant: STMicroelectronics S.r.l.

Inventor： Mahmoud Mahdipour Pirbazari ,  Andrea Mazzanti ,  Andrea Pallotta

IPC: H03K5/00 ,  H03K17/60

Abstract: In an embodiment, a circuit for tripling frequency is configured to receive an input voltage (Vin) having a sinusoidal shape and a base frequency. The circuit has a first and a second transistor pair that are cross-coupled, and a trans-characteristics f(Vin) approximating a polynomial nominal trans-characteristic given by f ⁡ ( V i ⁢ n ) = ( 3 A ⁢ V i ⁢ n - 4 A 3 ⁢ V i ⁢ n 3 ) ⁢ g m where A represents an amplitude of the input voltage and gm is a transconductance of transistors of the first and second transistor pairs.

公开(公告)号：US20210091757A1

公开(公告)日：2021-03-25

申请号：US17025288

申请日：2020-09-18

Applicant: STMicroelectronics S.r.l.

Inventor： Mahmoud Mahdipour Pirbazari ,  Andrea Mazzanti ,  Andrea Pallotta

IPC: H03K5/00 ,  H03K17/60

Abstract: In an embodiment, a circuit for tripling frequency is configured to receive an input voltage (Vin) having a sinusoidal shape and a base frequency. The circuit has a first and a second transistor pair that are cross-coupled, and a trans-characteristics f(Vin) approximating a polynomial nominal trans-characteristic given by f  ( V in ) = ( 3 A  V in - 4 A 3  V in 3 )  g m where A represents an amplitude of the input voltage and gm is a transconductance of transistors of the first and second transistor pairs.

公开(公告)号：US11658646B2

公开(公告)日：2023-05-23

申请号：US17577292

申请日：2022-01-17

Applicant: STMicroelectronics S.r.l.

Inventor： Mahmoud Mahdipour Pirbazari ,  Andrea Mazzanti ,  Andrea Pallotta

IPC: H03K5/00 ,  H03K17/60

CPC classification number: H03K5/00006 ,  H03K17/60

Abstract: In an embodiment, a circuit for tripling frequency is configured to receive an input voltage (Vin) having a sinusoidal shape and a base frequency. The circuit has a first and a second transistor pair that are cross-coupled, and a trans-characteristics f(Vin) approximating a polynomial nominal trans-characteristic given by





f
⁡

(

V

i
⁢
n


)


=


(



3
A

⁢

V

i
⁢
n



-


4

A
3


⁢

V

i
⁢
n

3



)

⁢

g
m






where A represents an amplitude of the input voltage and gm is a transconductance of transistors of the first and second transistor pairs.

公开(公告)号：US11271552B2

公开(公告)日：2022-03-08

申请号：US17025288

申请日：2020-09-18

Applicant: STMicroelectronics S.r.l.

Inventor： Mahmoud Mahdipour Pirbazari ,  Andrea Mazzanti ,  Andrea Pallotta

IPC: H03K5/00 ,  H03K17/60

Abstract: In an embodiment, a circuit for tripling frequency is configured to receive an input voltage (Vin) having a sinusoidal shape and a base frequency. The circuit has a first and a second transistor pair that are cross-coupled, and a trans-characteristics f(Vin) approximating a polynomial nominal trans-characteristic given by f ⁡ ( V in ) = ( 3 A ⁢ V in - 4 A 3 ⁢ V in 3 ) ⁢ g m where A represents an amplitude of the input voltage and gm is a transconductance of transistors of the first and second transistor pairs.