Analysis and design of class E isolated DC/DC converter using class E low dv/dt PWM synchronous rectifier

A Transformer Class E Amplifier

“…former Class E amplifier can be much reduced the circuit can find applications in low-cost, isolated miniaturised resonant dc/dc converters [7,10,11,13,14] and h.f. power generators [15,16].…”

“…Hence substituting i LM (0) found from Equation ( 10) to (9) and using ( 3) and ( 4) Equation ( 9) is now expressed as (11) The dc value of the supply current I I flowing through the voltage source V I is found from Equation ( 11) as ( )…”

A Transformer Class E Amplifier

“…former Class E amplifier can be much reduced the circuit can find applications in low-cost, isolated miniaturised resonant dc/dc converters [7,10,11,13,14] and h.f. power generators [15,16].…”

“…Hence substituting i LM (0) found from Equation ( 10) to (9) and using ( 3) and ( 4) Equation ( 9) is now expressed as (11) The dc value of the supply current I I flowing through the voltage source V I is found from Equation ( 11) as ( )…”

Design of High Efficiency Illumination for LED Lighting

“…where is the current ratio of min and max . As shown in (8), according to Kirchhoff 's voltage law (KVL), voltage of the resonant tank is equal to the sum of the voltage applied on resonant components and loads, and, wherein, the can be found by (9). Since the ratio of reactance LC to has been found, voltage applied on single transformer with full load can be calculated by (10)…”

“…Class-E serial resonant inverter will be used in this paper as main electric circuit. Class-E resonant inverter can achieve higher efficiency than Class-D resonant inverter [8,9]. In order to lower the usage of electricity for lightings during daytime, dimming features are seen as a way to save energy of lighting equipments.…”

LCL‐resonant single‐switch isolated DC–DC converter

“…While the existing LCL/LLC-resonant isolated converters use either a full-bridge or a half-bridge topology, which needs at least two switches. Other isolated DC-DC converters, such as the isolated zero-voltage switching class E converter [24], also uses at least two switches. Compared to the single-switch soft-switched flyback converter [25] in which the energy can only be transferred during the interval when the switch is off, the energy in the proposed converter is transferred during the whole switching period.…”

A Transformer Class E Amplifier

“…former Class E amplifier can be much reduced the circuit can find applications in low-cost, isolated miniaturised resonant dc/dc converters [7,10,11,13,14] and h.f. power generators [15,16].…”

“…Hence substituting i LM (0) found from Equation ( 10) to (9) and using ( 3) and ( 4) Equation ( 9) is now expressed as (11) The dc value of the supply current I I flowing through the voltage source V I is found from Equation ( 11) as ( )…”

Design of High Efficiency Illumination for LED Lighting

“…where is the current ratio of min and max . As shown in (8), according to Kirchhoff 's voltage law (KVL), voltage of the resonant tank is equal to the sum of the voltage applied on resonant components and loads, and, wherein, the can be found by (9). Since the ratio of reactance LC to has been found, voltage applied on single transformer with full load can be calculated by (10)…”

“…Class-E serial resonant inverter will be used in this paper as main electric circuit. Class-E resonant inverter can achieve higher efficiency than Class-D resonant inverter [8,9]. In order to lower the usage of electricity for lightings during daytime, dimming features are seen as a way to save energy of lighting equipments.…”

LCL‐resonant single‐switch isolated DC–DC converter

“…While the existing LCL/LLC-resonant isolated converters use either a full-bridge or a half-bridge topology, which needs at least two switches. Other isolated DC-DC converters, such as the isolated zero-voltage switching class E converter [24], also uses at least two switches. Compared to the single-switch soft-switched flyback converter [25] in which the energy can only be transferred during the interval when the switch is off, the energy in the proposed converter is transferred during the whole switching period.…”

A Transformer Class E Amplifier

“…former Class E amplifier can be much reduced the circuit can find applications in low-cost, isolated miniaturised resonant dc/dc converters [7,10,11,13,14] and h.f. power generators [15,16].…”

“…Hence substituting i LM (0) found from Equation ( 10) to (9) and using ( 3) and ( 4) Equation ( 9) is now expressed as (11) The dc value of the supply current I I flowing through the voltage source V I is found from Equation ( 11) as ( )…”

Design of High Efficiency Illumination for LED Lighting

“…where is the current ratio of min and max . As shown in (8), according to Kirchhoff 's voltage law (KVL), voltage of the resonant tank is equal to the sum of the voltage applied on resonant components and loads, and, wherein, the can be found by (9). Since the ratio of reactance LC to has been found, voltage applied on single transformer with full load can be calculated by (10)…”

“…Class-E serial resonant inverter will be used in this paper as main electric circuit. Class-E resonant inverter can achieve higher efficiency than Class-D resonant inverter [8,9]. In order to lower the usage of electricity for lightings during daytime, dimming features are seen as a way to save energy of lighting equipments.…”

LCL‐resonant single‐switch isolated DC–DC converter

“…While the existing LCL/LLC-resonant isolated converters use either a full-bridge or a half-bridge topology, which needs at least two switches. Other isolated DC-DC converters, such as the isolated zero-voltage switching class E converter [24], also uses at least two switches. Compared to the single-switch soft-switched flyback converter [25] in which the energy can only be transferred during the interval when the switch is off, the energy in the proposed converter is transferred during the whole switching period.…”