With years development of solid state induction heating technology, right now in China there are two main type technology used in induction heating field .
One is the voltage source series resonance type technology and the other is current source parallel resonance type technology . The main features of the two
type induction heating technology as below :
Voltage source series resonance type
1) DC side capacitor filter
2) Inverter output voltage is square wave;output current is sine wave
3) Tank circuit is low resistance series resonance
4) Suited to low Q tank circuit
5) Inductor voltage is Q times the inverter output voltage.
Current source parallel resonance type
1) Dc side inductance filter
2) Inverter output current is square wave;output voltage is sine wave
3) Tank circuit is high resistance parallel resonance
4) Suited to high Q tank circuit
Inductor current is Q times the inverter output current.
Tank circuit drawing of series resonance technology & parallel resonance technology
Application Scope Of Electronic Power Devices
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