By Luo F.L., Ye H.
There are a number of households of DC/DC converters comprising hundreds and hundreds of other topologies. Sorting throughout the quite a few homes and features is clearly a frightening activity. Culled from the pages of the groundbreaking complex DC/DC Converters, this publication offers a centred, concise evaluate of greater than 50 topologies of multi-quadrant converters. All elements of those topologies are illustrated via designs constructed by means of the authors over the years. The publication starts with multiple-quadrant converters via switched part (SC and SI) converters, multiple-lift push-pull switched-capacitor converters, and at last, multiple-quadrant soft-switching converters.
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Extra resources for Advanced Multi-Quadrant Operation DC/DC Converters
3c. Mode B implements the voltage-lift technique. All three capacitors are charged in parallel during state-on. 3 Mode B operation. capacitors symmetrically, so that the voltages across these three capacitors should be the same. They are discharged in series during state-off. Therefore, the output voltage is lifted by three. Summary. 15 W. 1. 2a and b the voltage across capacitor C1 increases during switch-on, and decreases during switch-off according to the integration of the current iC1. If the switching period T is small enough (comparing with the circuit time constant) we can use average current to replace its instantaneous value for the integration.
In this case capacitors C 1 , C 2 , and C 3 are charged via the circuit VH–S1–C1–D5–C2–D6–C3–S10, and the voltage across capacitors C1, C2, and C3 is increasing. 12 W, and the voltage deduction is 2VD = 1 V. 2b: switches S2, S3, and S4 are closed and diodes D8, D9, and D9 are conducted. Other switches and diodes are open. In this case capacitor C1 (C2 and C3) is discharged via the circuit S2(S3 and S4)–VL–D8(D9 and D10)–C1(C2 and C3), and the voltage across capacitor C1 (C2 and C3) is decreasing.
5. 3a and b, the voltage across capacitor C1 increases during switch-on, and decreases during switch-off according to the integration of the current iC1. If the switching period T is small enough we can use average current to replace its instantaneous value for the integration. 11) kT £ t < T The current ﬂowing through the three capacitors is an exponential function. If the switching period T is small enough we can use their initial values and ignore their variations. 13) Where iL is the average input current in the switch-on period kT that is equal to IL/k, and i H is the average output current in the switch-off period (1 – k)T that is equal to IH/3(1 – k).
Advanced Multi-Quadrant Operation DC/DC Converters by Luo F.L., Ye H.