METHOD AND APPARATUS FOR CONTROLLING POWER SOURCE SEMICONDUCTOR

• US 20160134326A1
• Filed: 11/10/2015
• Published: 05/12/2016
• Est. Priority Date: 11/12/2014
• Status: Active Grant

• Current Assignee: Hyundai Mobis Co., Ltd.
• Original Assignee: Hyundai Autron Co., Ltd. (Hyundai Mobis Co., Ltd.)
• Inventors: Lee, Soon Seob, Ha, Tae Ok, Shin, Jong Ha
• Granted Patent: US 9,544,012 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: H01L 23/24 solid or gel at the normal operating temperature of the device H01L23/3135 takes precedence
• CPC Class Codes: H02M 1/143 using compensating arrangements for reducing noise from the supply in transmission systems H04B15/005
• CPC Class Codes: H02M 1/44 Circuits or arrangements for compensating for electromagnetic interference in converters or inverters
• CPC Class Codes: H04B 1/69 Spread spectrum techniques

Abstract

A method for controlling a power source semiconductor may include: supplying, by a switching frequency supply unit, preset respective reference switching frequencies to a plurality of elements which are operated according to a respective switching frequency; sensing, by a control unit, sensing interference in the plurality of elements, based on operations of the elements according to the respective reference switching frequencies; setting, by the control unit, bandwidths for the respective reference switching frequencies when the interference in the plurality of elements is sensed; and increasing, by a bandwidth adjusting unit, bandwidth of the respective reference switching frequencies supplied through the switching frequency supply unit, based on the bandwidths for the respective reference switching frequencies.

Claims

1. A method for controlling a power source semiconductor, comprising:

supplying, by a switching frequency supply unit, preset respective reference switching frequencies to a plurality of elements which are operated according to a respective switching frequency;

sensing, by a control unit, sensing interference in the plurality of elements, based on operations of the elements according to the respective reference switching frequencies;

setting, by the control unit, bandwidths for the respective reference switching frequencies when the interference in the plurality of elements is sensed; and

increasing, by a bandwidth adjusting unit, bandwidth of the respective reference switching frequencies supplied through the switching frequency supply unit, based on the bandwidths for the respective reference switching frequencies.

2. The method of claim 1, wherein in the increasing of the bandwidth of the reference switching frequencies,

the bandwidth adjusting unit increases the bandwidth of the reference switching frequencies through a spread spectrum method.

3. The method of claim 1, wherein the plurality of elements which are operated according to the respective switching frequency comprise a DC/DC converter and a charge pump.

4. The method of claim 1, wherein in the setting of the bandwidths for the respective reference switching frequencies,

the control unit sets the bandwidths for the respective reference switching frequencies such that the bandwidths are proportional to a magnitude of respective reference switching frequency.

5. The method of claim 4, wherein in the setting of the bandwidths for the respective reference switching frequencies,

the control unit sets the bandwidths for the respective reference switching frequencies to values obtained by multiplying the respective reference switching frequency by a preset reference ratio.

6. An apparatus for controlling a power source semiconductor, comprising:

a switching frequency supply unit configured to supply preset respective reference switching frequencies to a plurality of elements which are operated according to a respective switching frequency;

a control unit configured to sense interference in the plurality of elements based on the operations of the elements according to the respective reference switching frequencies, and set bandwidths for the respective reference switching frequencies when the interference in the elements is sensed; and

a bandwidth adjusting unit configured to increase bandwidth of the respective reference switching frequencies supplied through the switching frequency supply unit, based on the bandwidths for the respective reference switching frequencies.

7. The apparatus of claim 6, wherein the bandwidth adjusting unit increases the bandwidth of the respective reference switching frequencies through a spread spectrum method.

8. The apparatus of claim 6, wherein the plurality of elements which are operated according to the respective switching frequency comprise a DC/DC converter and a charge pump.

9. The apparatus of claim 6, wherein the control unit sets the bandwidths for the respective reference switching frequencies such that the bandwidths are proportional to a magnitude of respective reference switching frequency.

10. The apparatus of claim 9, wherein the control unit sets the bandwidths for the respective reference switching frequencies to values obtained by multiplying the respective reference switching frequency by a preset reference ratio.