AN3400 Datasheet, PDF (5/78 Pages) STMicroelectronics – Analysis and simulation of a BJT complementary pair in a self-oscillating CFL solution

AN3400
List of figures
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voltage on base series capacitor C_p (V_CP) signals acquired . . . . . . . . . . . . . . . . . . . . . . . 58
STX83003 (NPN) bipolar transistor during steady-state operation with 230 V input voltage:
base current (I_B1), collector current (I_C1), voltage on filter capacitor C2 (VC) and voltage on
driving resistance R2 (VRS) signals acquired. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59
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
STX83003 (NPN) bipolar transistor during turn-on particular in steady-state operation with
230 V input voltage: base current (I_B1), collector current (I_C1) and collector-emitter voltage
(V_CE1) signals acquired . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60
STX83003 (NPN) bipolar transistor during turn-off particular in steady-state operation with
230 V input voltage: base current (I_B1), collector current (I_C1) and collector-emitter voltage
(V_CE1) signals acquired . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60
STX93003 (PNP) bipolar transistor during turn-on particular in steady-state operation with
230 V input voltage: base current (I_B2), collector current (I_C2) and emitter-collector voltage
(V_CE2) signals acquired . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61
STX93003 (PNP) bipolar transistor during turn-off particular in steady-state operation with
230 V input voltage: base current (I_B2), collector current (I_C2) and emitter-collector voltage
(V_CE2) signals acquired . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61
Current source signal Is modeling for the simulation on the re-circulating phase before the
NPN conduction phase . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63
Re-circulating phase preliminary to the NPN conduction time phase . . . . . . . . . . . . . . . . . 65
NPN conduction time phase . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66
NPN storage time phase. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67
Dead time phase after the NPN storage time phase . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68
Re-circulating phase preliminary to the PNP conduction time phase . . . . . . . . . . . . . . . . . 69
PNP conduction time phase . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 70
PNP storage time phase . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71
Dead time phase after the PNP storage time phase . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72
Driving network simulation results: filter capacitor voltage signal (V_s), NPN base series
capacitor voltage (V_Cn) and PNP base series capacitor voltage (V_Cp) signals simulated . 73
Driving network simulation results: NPN base current (I_bn) and PNP base current (I_bp)
signals simulated . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 74
Driving network simulation results: NPN base series capacitor current (I_Cn) and PNP base
series capacitor current (I_Cp) signals simulated . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 74
Doc ID 018840 Rev 1
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