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leakage inductor
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orega transformer SMT4Abstract: MC44603P would cut the voltage spikes due to the leakage inductor (refer to Figure 1). Consequently, N must be , a consistently accurate regulation of the output and to reduce the leakage inductor and hence the , should result in a well coupled transformer with a low leakage inductor value. On the other hand, if we , VIN TIME ONTIME OFFTIME DEADTIME Figure 1. Voltage Spikes Due to the Leakage Inductor , incorporate a lossy and costly clamping network that would cut the voltage spikes due to the leakage inductor 
Motorola Original 


MC44603PAbstract: THOMSON B2 ferrite material would cut the voltage spikes due to the leakage inductor (refer to Figure 1. ). Consequently, N must , obtain a consistently accurate regulation of the output and to reduce the leakage inductor and hence , E Figure 1. Voltage Spikes Due to the Leakage Inductor The chosen MOSFET, is the MTP10N40E , transformer with a low leakage inductor value. On the other hand, if we do not take into account the turning , clamping network that would cut the voltage spikes due to the leakage inductor at the power switch turning 
ON Semiconductor Original 

MC44603P THOMSON B2 ferrite material orega transformer SMT4 flyback transformer construction ferrite thomson lcc orega flyback transformer AN1669/D MC44603 
optocoupler for ZCDAbstract: marking AAX ) The output diode current increase is limited by the leakage inductor. As a result, the secondary peak , control block picks up the leakage inductor current, the end of conduction of the output rectifier and , (eq. 3) The diode current reaches its peak when the leakage inductor is reset. Thus, in order to accurately regulate the output current, we need to take into account the leakage inductor current. This is , lower threshold for detection of the leakage inductance reset time LINE FEEDFORWARD VVIN to ICS(offset 
ON Semiconductor Original 

optocoupler for ZCD marking AAX NCL30080 NCL30080/D 
leakage inductorAbstract: L1070 ELECTRICAL CHARACTERISTICS: Inductance: L=1070 mH MAX @ 10 KHz. 0.1V Leakage Inductor LL=29.67 uH MAX @ 10 KHz, 0.1V (pin 13) LL=18.52 uH MAX @ 10 KHz, 0.1V (pin 12) pin #1 indicator 1 6 2 7 Resistance: DCR=(PIN 12) 1.15 ohms MAX @ 25ºC 23.1 max DCR=(PIN 23) 0.123 ohms MAX @ 25ºC DCR=(PIN 54) 1.922 ohms MAX @ 25ºC 8 3 DCR=(PIN 109) 0.482 ohms MAX 4 9 5 23.24 max 10 DCR=(PIN 98) 0.098 ohms MAX DCR=(PIN 76) 0.185 ohms MAX 18.46 FEATURES 
Transtek Magnetics Electronics Original 

leakage inductor L1070 POT23/18 TMP60032AT TR011725P 
RCD snubberAbstract: snubber circuit for mosfet the leakage inductor (Llk) of the main transformer and the output capacitor (COSS) of the MOSFET. The , absorbs the current in the leakage inductor by turning on the snubber diode (Dsn) when Vds exceeds , conduction mode (DCM) with several parasitic components, such as primary and secondary leakage inductors, an , turns on, so that the voltage across the magnetizing inductor (Lm) is clamped to nVo. There is , ratio of the main transformer, and Llk1 is the leakage inductance of the main transformer. The time ts 
Fairchild Semiconductor Original 

AN4147 RCD snubber snubber circuit for mosfet RCD snubber mosfet design flyback snubber snubber capacitor for low frequency 
RCD snubberAbstract: RCD snubber mosfet design between the leakage inductor (Llk) of the main transformer and the output capacitor (COSS) of the MOSFET , figures 2 and 3, respectively. The RCD snubber circuit absorbs the current in the leakage inductor by , secondary leakage inductors, an output capacitor of MOSFET, and a junction capacitor of a secondary diode , the voltage across the magnetizing inductor, Lm, is clamped to nVo. There is, therefore, a resonance , the snubber capacitor Csn, n is the turns ratio of the main transformer, and Llk1 is the leakage 
Fairchild Semiconductor Original 

AN4147 flyback switching snubber design flyback snubber design flyback rcd snubber capacitor snubber circuit AN30000010 
Abstract: conduction time of secondary diode. The constant current control block picks up the leakage inductor current , the leakage inductor. As a result, the secondary peak current is reduced: I D,pk t I L,pk I , choosing the sense resistor: The diode current reaches its peak when the leakage inductor is reset , the output current is independent of the inductor value. Moreover, the leakage inductance does not , CURRENT CONTROL Current sense lower threshold for detection of the leakage inductance reset time LINE 
ON Semiconductor Original 


Abstract: leakage inductor. As a result, the secondary peak current is reduced: I D,pk t I L,pk N sp (eq. 2 , time of secondary diode. The constant current control block picks up the leakage inductor current, the , the leakage inductor is reset. Thus, in order to accurately regulate the output current, we need to take into account the leakage inductor current. This is accomplished by sensing the clamping network , independent of the inductor value. Moreover, the leakage inductance does not influence the output current 
ON Semiconductor Original 


marking AACAbstract: marking AAX diode current increase is limited by the leakage inductor. As a consequence, the secondary peak current , control block picks up the leakage inductor current, the end of conduction of the output rectifier and , (eq. 3) The diode current reaches its peak when the leakage inductor is reset. Thus, in order to accurately regulate the output current, we need to take into account the leakage inductor current. This is , output current is independent of the inductor value. Moreover, the leakage inductance does not influence 
ON Semiconductor Original 

marking AAC NCL30082 NCL30082/D 
Abstract: leakage inductor. As a result, the secondary peak current is reduced: I D,pk t I L,pk N sp (eq. 2 , time of secondary diode. The constant current control block picks up the leakage inductor current, the , the leakage inductor is reset. Thus, in order to accurately regulate the output current, we need to take into account the leakage inductor current. This is accomplished by sensing the clamping network , independent of the inductor value. Moreover, the leakage inductance does not influence the output current 
ON Semiconductor Original 


Abstract: secondary diode. The constant current control block picks up the leakage inductor current, the end of , resistor: The diode current reaches its peak when the leakage inductor is reset. Thus, in order to accurately regulate the output current, we need to take into account the leakage inductor current. This is , the inductor value. Moreover, the leakage inductance does not influence the output current value as , CURRENT CONTROL Current sense lower threshold for detection of the leakage inductance reset time LINE 
ON Semiconductor Original 


Abstract: diode current increase is limited by the leakage inductor. As a consequence, the secondary peak current , control block picks up the leakage inductor current, the end of conduction of the output rectifier and , (eq. 3) The diode current reaches its peak when the leakage inductor is reset. Thus, in order to accurately regulate the output current, we need to take into account the leakage inductor current. This is , key point is that the output current is independent of the inductor value. Moreover, the leakage 
ON Semiconductor Original 

NCL30081 NCL30081/D 
marking aAGAbstract: marking aAG 5PIN output diode current increase is limited by the leakage inductor. As a consequence, the secondary peak , control block picks up the leakage inductor current, the end of conduction of the output rectifier and , (eq. 3) The diode current reaches its peak when the leakage inductor is reset. Thus, in order to accurately regulate the output current, we need to take into account the leakage inductor current. This is , key point is that the output current is independent of the inductor value. Moreover, the leakage 
ON Semiconductor Original 

marking aAG marking aAG 5PIN 
marking aagAbstract: marking AAG 6PIN diode current increase is limited by the leakage inductor. As a consequence, the secondary peak current , control block picks up the leakage inductor current, the end of conduction of the output rectifier and , (eq. 3) The diode current reaches its peak when the leakage inductor is reset. Thus, in order to accurately regulate the output current, we need to take into account the leakage inductor current. This is , key point is that the output current is independent of the inductor value. Moreover, the leakage 
ON Semiconductor Original 

marking AAG 6PIN 
NCL30081 DAbstract: leakage inductors Lp and Lleak and the current ramps up. When the MOSFET is turnedâ'off, the inductor , leakage inductor current, the end of conduction of the output rectifier and controls the drain current , limited by the leakage inductor. As a consequence, the secondary peak current is reduced: I D,pk t I , set by choosing the sense resistor: The diode current reaches its peak when the leakage inductor , leakage inductor current. This is accomplished by sensing the clamping network current. Practically, a 
ON Semiconductor Original 

NCL30081 D 
marking AAXAbstract: diode current increase is limited by the leakage inductor. As a consequence, the secondary peak current , control block picks up the leakage inductor current, the end of conduction of the output rectifier and , (eq. 3) The diode current reaches its peak when the leakage inductor is reset. Thus, in order to accurately regulate the output current, we need to take into account the leakage inductor current. This is , output current is independent of the inductor value. Moreover, the leakage inductance does not influence 
ON Semiconductor Original 

NCL30083 NCL30083/D 
Abstract: leakage inductor reset. It is limited by the clamping network consisting of DC, CC and RC of Figure 2 , capacitor (DC , RC and CC of Figure 2): â'¢ The capacitor CC absorbs the leakage inductor energy when the , magnetizing inductor energy is conveyed to the secondary side and charges the output. The leakage inductor , in,rms) HL @ T SW RC C The energy due to the leakage inductor must be handled. V ILIM It , than the leakage inductor energy defined in Eq.22. From this, we can deduce the following minimum RC 
ON Semiconductor Original 

AND9200/D NCL30088C NCL30088 
Abstract: Softstart Yes output current, the leakage inductor current must be taken into account. This is , current control block picks up the leakage inductor current, the end of conduction of the output , peak when the leakage inductor is reset. Thus, in order to accurately regulate the Â© Semiconductor , independent of the inductor value. Moreover, the leakage inductance does not influence the output current , , the controller monitors when the currentsense voltage crosses the threshold for leakage inductance 
ON Semiconductor Original 

AND9131/D NCL30080/81/82/83 NCL3008X NCL30080A/B NCL30081A/B NCL30082A/B 
Abstract: diode current increase is limited by the leakage inductor. As a consequence, the secondary peak current , control block picks up the leakage inductor current, the end of conduction of the output rectifier and , (eq. 3) The diode current reaches its peak when the leakage inductor is reset. Thus, in order to accurately regulate the output current, we need to take into account the leakage inductor current. This is , that the output current is independent of the inductor value. Moreover, the leakage inductance does not 
ON Semiconductor Original 

L30082 
A400MAbstract: diode current increase is limited by the leakage inductor. As a consequence, the secondary peak current , control block picks up the leakage inductor current, the end of conduction of the output rectifier and , (eq. 3) The diode current reaches its peak when the leakage inductor is reset. Thus, in order to accurately regulate the output current, we need to take into account the leakage inductor current. This is , that the output current is independent of the inductor value. Moreover, the leakage inductance does not 
ON Semiconductor Original 

A400M 
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