Passive boost network and DC-DC boost converter applying the same

Patent metadata

Field	Value
Publication number	US-10205406-B2
Application number	US-201815865420-A
Country	US
Kind code	B2
Filing date	Jan 9, 2018
Priority date	Jan 12, 2017
Publication date	Feb 12, 2019
Grant date	Feb 12, 2019

Abstract

A passive boost network configured to boost and output an AC power signal having a predetermined frequency, can include: an input port; an output port configured to provide the AC power signal; first and second passive components coupled in series between first and second terminals of the input port; a third passive component coupled in series with the second passive component between first and second terminals of the output port; and where the first passive component is one of a capacitor and an inductor, and the second and third passive components are each the other of the capacitor and the inductor.

First claim

What is claimed is:

1. A passive boost network configured to boost and output an AC power signal having a predetermined frequency, the passive boost network comprising:
a) an input port;
b) an output port configured to provide said AC power signal;
c) first and second passive components coupled in series between first and second terminals of said input port;
d) a third passive component coupled in series with said second passive component between first and second terminals of said output port; and
e) wherein said first passive component is a capacitor, and said second and third passive components are each an inductor, wherein the parameters of said first, second, and third passive components are predetermined such that an output impedance of said passive boost network is zero, and wherein the parameters of said first, second, and third passive components satisfy:

1

ω
⁢

⁢
C

=

ω
·
L

⁢

⁢

1
·
L

⁢

⁢
2

L
⁢

⁢
1

+

L
⁢

⁢
2

wherein ω is an angular frequency of said AC power signal, C is a capacitance value of said first passive component, L 1 is an inductance value of said third passive component, and L 2 is an inductance value of said second passive component.

2. The passive boost network of claim 1 , wherein:
a) said first passive component is coupled between a first terminal of said input port and an intermediate terminal;
b) said second passive component is coupled between said intermediate terminal and a second terminal of said output port;
c) said third passive component is coupled between said intermediate terminal and a first terminal of said output port; and
d) said second terminal of said output port is coupled to a second terminal of said input port.

3. The passive boost network of claim 1 , further comprising:
a) a fourth passive component coupled in series with said first and second passive components between said first and second terminals of said input port, wherein said fourth passive component is a capacitor; and
b) wherein said first passive component is coupled between a first terminal of said input port and an intermediate terminal, said fourth passive component is coupled between a second terminal of said input port and a second terminal of said output port, said second passive component is coupled between said intermediate terminal and said second terminal of said output port, and said third passive component is coupled between said intermediate terminal and said first terminal of said output port.

4. The passive boost network of claim 3 , wherein the parameters of said first, second, third, and fourth passive components are predetermined such that an output impedance of said passive boost network is zero.

5. The passive boost network of claim 4 , wherein said parameters of said first, second, third, and fourth passive components satisfy:

2

ω
⁢

⁢
Cx

=

ω
·
L

⁢

⁢

1
·
L

⁢

⁢
2

L
⁢

⁢
1

+

L
⁢

⁢
2

wherein ω is an angular frequency of said AC power signal, Cx are capacitance values of said first and fourth passive components, L 1 is an inductance value of said third passive component, and L 2 is an inductance value of said second passive component.

6. A DC-DC boost converter, comprising the passive boost network of claim 1 , and further comprising:
a) an inverter configured to generate said AC power signal with said predetermined frequency; and
b) a rectifier circuit configured to convert said AC power signal to a DC voltage signal.

7. A passive boost network configured to boost and output an AC power signal having a predetermined frequency, the passive boost network comprising:
a) an input port;
b) an output port configured to provide said AC power signal;
c) first and second passive components coupled in series between first and second terminals of said input port;
d) a third passive component coupled in series with said second passive component between first and second terminals of said output port; and
e) wherein said first passive component is an inductor, and said second and third passive components are each a capacitor, wherein the parameters of said first, second, and third passive components are predetermined such that an output impedance of said passive boost network is zero, and wherein, and the parameters of said first, second, and third passive components satisfy:

1

ω
⁡

(

C
⁢

⁢
1

+

C
⁢

⁢
2

)

=

ω
·
L

Assignees

• Silergy Semiconductor Technology Hangzhou Ltd

Inventors

• Zhang Wang
• Zhao Chen

Classifications

• H02M3/335

  using semiconductor devices only · CPC title

• H02M3/3155

  with automatic control of the output voltage or current · CPC title

• H02M1/42

  Circuits or arrangements for compensating for or adjusting power factor in converters or inverters · CPC title

• H02M2003/1557

  Electricity · mapped topic

• H02M7/758 Primary

  with automatic control of output waveform or frequency · CPC title