AN3400 datasheet(5/78 Pages) STMICROELECTRONICS

5 / 78 page

AN3400

List of figures

Doc ID 018840 Rev 1

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voltage on base series capacitor Cp (VCP) signals acquired . . . . . . . . . . . . . . . . . . . . . . . 58

Figure 33.

STX83003 (NPN) bipolar transistor during steady-state operation with 230 V input voltage:

base current (IB1), collector current (IC1), voltage on filter capacitor C2 (VC) and voltage on

driving resistance R2 (VRS) signals acquired. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59

Figure 34.

STX83003 (NPN) bipolar transistor during steady-state operation with 230 V input voltage:

base current (IB1), collector current (IC1), voltage on base series capacitor C3 (VCN)

and voltage on breakdown resistance R4 (VRBN) signals acquired . . . . . . . . . . . . . . . . . 59

Figure 35.

STX83003 (NPN) bipolar transistor during turn-on particular in steady-state operation with

230 V input voltage: base current (IB1), collector current (IC1) and collector-emitter voltage

(VCE1) signals acquired . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60

Figure 36.

STX83003 (NPN) bipolar transistor during turn-off particular in steady-state operation with

230 V input voltage: base current (IB1), collector current (IC1) and collector-emitter voltage

(VCE1) signals acquired . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60

Figure 37.

STX93003 (PNP) bipolar transistor during turn-on particular in steady-state operation with

230 V input voltage: base current (IB2), collector current (IC2) and emitter-collector voltage

(VCE2) signals acquired . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61

Figure 38.

STX93003 (PNP) bipolar transistor during turn-off particular in steady-state operation with

230 V input voltage: base current (IB2), collector current (IC2) and emitter-collector voltage

(VCE2) signals acquired . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61

Figure 39.

Current source signal Is modeling for the simulation on the re-circulating phase before the

NPN conduction phase . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63

Figure 40.

Re-circulating phase preliminary to the NPN conduction time phase . . . . . . . . . . . . . . . . . 65

Figure 41.

NPN conduction time phase . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66

Figure 42.

NPN storage time phase. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67

Figure 43.

Dead time phase after the NPN storage time phase . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68

Figure 44.

Re-circulating phase preliminary to the PNP conduction time phase . . . . . . . . . . . . . . . . . 69

Figure 45.

PNP conduction time phase . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 70

Figure 46.

PNP storage time phase . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71

Figure 47.

Dead time phase after the PNP storage time phase . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72

Figure 48.

Driving network simulation results: filter capacitor voltage signal (Vs), NPN base series

capacitor voltage (VCn) and PNP base series capacitor voltage (VCp) signals simulated . 73

Figure 49.

Driving network simulation results: NPN base current (Ibn) and PNP base current (Ibp)

signals simulated . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 74

Figure 50.

Driving network simulation results: NPN base series capacitor current (ICn) and PNP base

series capacitor current (ICp) signals simulated . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 74

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