Electronic Components and Technologies used in our Induction Power Supply
April 27, 2023
ㆍMOSFET
Characteristics: operating at high frequency, low switching losses and easy to drive
ㆍIGBT(Insulated Gate Bipolar Transistor)
Characteristics: much lower conduction loss at high current lever compare with MOSFET, excellent ruggedness, low switching losses and tolerance of overloads.
ㆍSCR (Silicon Controlled Rectifier)
Characteristics: It is a type of thyristor and semi controlled device.
ㆍRectifier
Characteristics: reliable quality with tolerance of overloads
Usually, two types of circuits are used in Induction Power Supply or Generator
Current Feedback -type LC parallel resonance
Voltage Feedback- type LC series resonance
LC parallel resonance:
I OSC=QIDC VOSC=VDC
VOSC: Voltage at coil VDC: DC voltage after rectifying
I OSC: Current at coil IDC: DC current after rectifying
ㆍCurrent feedback, high consumption duo to I OSC
ㆍNot switch on quickly at any load & temperature because voltage waveform is square wave.
LC Series Resonant Circuit
VOSC=QVDC I OSC=IDC
VOSC: Voltage at coil VDC: DC voltage after rectifying
I OSC: Current at coil IDC: DC current after rectifying
ㆍVoltage feedback, low consumption duo to low I OSC
ㆍSwitch on quickly at any load & temperature, because Load current waveform is sine wave
All Induction Power Supply from TY Induction are based on LC Series Resonance technology so that our machine can save energy up to 30%.
Normally there are two types of Rectification: Diode Rectification and SCR Rectification.
SCR Rectification:
Output power adjust at rectification circuit
Chopped mode rectifying through SCR (Silicon Controlled Rectifier) cause:
ㆍBad power factor
ㆍMore effect to power grid.
ㆍMore ultra harmonic
Customers need add capacitance cabinet for power factor compensation
Diode Rectification
Output power adjust at oscillation circuit
Direct rectify through Diode without chopped mode rectifying, the advantage as follow:
ㆍGood power factor
ㆍLess effect to power grid
ㆍLess ultra harmonic.
Customers no need add capacitance cabinet for power factor compensation and save cost. Our Induction Machine is used Diode Rectification Technology so the power factor is never less 0.95
Machine automatically tracks the frequency change at oscillation circuit, so that the frequency at oscillation circuit (LC) will always be conformable with switching frequency of IGBT. This Phase-locked technology used in our product that ensures oscillation circuit always staying resonance status. Hence the machine efficiency is always over 90%.
The reliability of power devices depends on its loss. Lower loss of power devices ensures reliability of equipment at same time ensure power devices can work at higher frequency. We have solved this problem through Soft-switching technology. Under this technology, Power device turn on at zero voltage and turn off at zero current.
Our Components Suppliers
Hot Products
Contact Us
Enquiry hotline:
+86 135 4128 7190
Email:
Address:
No.18,14th Floor, Building 2, No. 169 Zhongli Road, Banzhuyuan Subdistrict, Xindu District, Chengdu, Sichuan, China, Code:610000
