Ndezvipi Zvakanakira zveSimba MOSFETs?

Simba MOSFETs rave chishandiso chesarudzo mune zvemazuva ano magetsi emagetsi maapplication, achishandura indasitiri nemaitiro epamusoro ekuita kwavo. Iyi ongororo yakazara inoongorora akawanda mabhenefiti anoita kuti simba MOSFETs rive rikakosha mumagetsi emazuva ano masisitimu.

1. Voltage-Controlled Operation

Kusiyana nebipolar junction transistors (BJTs) izvo zvinodzorwa-zvino midziyo, simba MOSFETs inodzorwa nevoltage. Ichi chakakosha hunhu chinopa akati wandei mabhenefiti akakosha:

Yakarerutswa gedhi drive zvinodiwa
Kuderera kwesimba rekushandisa munharaunda yekudzora
Kukurumidza kushandura masimba
Hapana chechipiri kuparara kunetseka

Kuenzanisa kweBJT uye MOSFET gedhi dhiraivha maseketi

Mufananidzo 1: Yakareruka gedhi drive zvinodiwa zveMOSFET zvichienzaniswa neBJTs

2. Superior Switch Performance

Simba MOSFETs rinokunda mune yakakwira-frequency switching application, ichipa akawanda mabhenefiti pamusoro pechinyakare BJTs:

Kuchinja kumhanya kuenzanisa pakati peMOSFET neBJT

Mufananidzo 2: Kuchinja kuenzanisa kukurumidza pakati peMOSFET neBJT

Parameter	Simba MOSFET	BJT
Kuchinja Speed	Very Fast (ns range)	Pakati (μs chiyero)
Kuchinja Kurasikirwa	Low	High
Maximum Switching Frequency	> 1 MHz	~100 kHz

3. Thermal Characteristics

Simba MOSFETs rinoratidza hunhu hwepamusoro hwekupisa hunoita kuti vavimbike nekuita kwavo:

Thermal maitiro uye tembiricha coefficient

Mufananidzo 3: Tembiricha coefficient yeRSS (pa) musimba MOSFETs

Positive tembiricha coefficient inodzivirira kupisa kwekutiza
Kugovana kurinani ikozvino mukushanda kwakafanana
Kugadzikana kwepamusoro kwekushisa
Yakakura yakachengeteka inoshanda nzvimbo (SOA)

4. Yakaderera Pa-State Resistance

Simba remazuva ano MOSFETs rinowana rakadzika kwazvo pa-nyika kuramba (RDS (pa)), zvichitungamira kune akati wandei mabhenefiti:

Nhoroondo maitiro eRSS (pa) kuvandudzwa

Mufananidzo 4: Kuvandudzwa kwenhoroondo muMOSFET RDS (pa)

5. Parallelling Kugona

Power MOSFETs inogona kubatanidzwa zviri nyore mukufanana kubata mafungu epamusoro, nekuda kweiyo yakanaka tembiricha coefficient:

Kufanana kushanda kweMOSFETs

Mufananidzo 5: Ikozvino kugovera mune yakafanana-yakabatana MOSFETs

6. Ruggedness uye Kuvimbika

Simba MOSFETs inopa yakanakisa ruggedness uye kuvimbika maficha:

Hapana chechipiri kuparara chiitiko
Inherent body diode ye reverse voltage kuchengetedza
Yakanakisa avalanche kugona
Yakakwira dV/dt kugona

Safe Operating Area kuenzanisa

Mufananidzo 6: Safe Operating Area (SOA) kuenzanisa pakati peMOSFET neBJT

7. Mutengo-Kubudirira

Nepo simba rega rega MOSFETs ringave nemutengo wepamusoro wekutanga uchienzaniswa neBJTs, yavo yese system-level mabhenefiti anowanzo konzera kuchengetwa kwemutengo: