30G122 データシートの表示（PDF） - Toshiba

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30G122

GT45F122 IGBT 300V TO-220F

Toshiba 

5-2 Soft-Switching Applications

Comparisons Between Hard and Soft Switching (diagrams shown only as a guide)

Hard Switching

SOA

High-current,

high-voltage

locus

IC

VCE

SOA Locus for Hard Switching

Soft Switching

SOA

Thermal resistance limit area

S/B limit area

IC

High-current,

low-voltage and

low-current,

high-voltage locus

VCE

SOA Locus for Soft Switching

VCE

IC

VCE

IC

VCE

IC

Switching Characteristics

(Example)

Current Resonance

(Example)

Voltage Resonance

(Example)

5-3 Strobe Flash Applications

Strobe flash control is now prevalent in digital still cameras. Package sizes are getting smaller,

and logic levels are increasingly used to represent the gate drive voltage. Toshiba offers

compact IGBTs featuring low gate drive voltage.

■ As a voltage-controlled device, the IGBT requires only a few components for drive circuit.

■ IGBTs require fewer components for the strobe flash circuit (compared to SCRs).

■ Strobe flash IGBTs are capable of switching large currents.

DSC, Compact Camera

Single-Lens Reflex Camera

– 10 –

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