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Index 122

engine oil pressure switch、water temperature sensor、braking smoke and air condition system circuit diagram

Published:2011/4/10 20:39:00 Author:muriel | Keyword: engine oil pressure switch, water temperature sensor, braking smoke , air condition system

Figure engine oil pressure switch、water temperature sensor、braking smoke and air condition system circuit diagram (View)

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Air-condition front and back control assembly and ambient temperature control circuit diagram

Published:2011/4/10 20:25:00 Author:muriel | Keyword: Air-condition front and back control assembly, ambient temperature control

Figure Air-condition front and back control assembly and ambient temperature control circuit diagram (View)

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The application circuit of EXB851

Published:2011/4/8 2:26:00 Author:may

The application circuit of EXB851
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Application circuit of EXB840

Published:2011/4/8 2:10:00 Author:may

Application circuit of EXB840
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D type IPM structure and IGBT equivalent circuit

Published:2011/4/8 2:01:00 Author:may | Keyword: D type, IPM, structure, equivalent

D type IPM structure and IGBT equivalent circuit
(a) D type IPM structure (b) IGBT equivalent circuit (View)

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Typical application wiring diagram of HL610A

Published:2011/4/8 1:57:00 Author:may

Typical application wiring diagram of HL610A
(View)

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Power module unit diagram of IGBT and fly-wheel diode

Published:2011/4/8 1:07:00 Author:may | Keyword: IGBT, fly-wheel diode, Power module

Power module unit diagram of IGBT and fly-wheel diode
(a) is single switch module; (b) is two unit (half bridge) module; (c) is H bridge (single phase bridge) module; (d) is asymmetrical H bridge module; (e) is three phase bridge (six unit or inverter bridge) module; (f) is chopping module (g) is chopping module (h) is three phase bridge GD add chopping GAL (braking chopper circuit) module; (i) is three unit module, consists of three group switch; (j) is single switch add collector end series diode ( negative direction disconnecting switch) module; (k) is single switch add emitter end series diode (negative direction disconnecting switch) module; (l) is two unit module, with series diode (negative direction disconnecting switch). (View)

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CFL electron ballast circuit composed of MPIC2151P and PowerLuxTM IGBT

Published:2011/4/2 3:25:00 Author:may | Keyword: electron ballast, PowerLuxTM IGBT

CFL electron ballast circuit composed of MPIC2151P and PowerLuxTM IGBT
(View)

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The package of Mitsubishi IPM

Published:2011/4/7 20:48:00 Author:may | Keyword: Mitsubishi,

The package of Mitsubishi IPM
IPM is advanced hybrid integrated power device. It is integrated high-speed, low power consumption IGBT chip and optimal grid drive circuit and kinds of protective circuit in one module. Compare to ordinary IGBT, IPM has further increase in system features and reliability. Also, because its conduction losses and switch losses is quite low, the size of radiator is small, so size of the whole system is more small. Moreover IPM internal integrated logic, control, detect ion and protect circuit, the use is convenient, it not only decrease the volume of this system and the development time, also greatly add reliability of the system. (View)

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Zero-voltage zero-current switch three-level DC converter

Published:2011/4/7 20:34:00 Author:may | Keyword: zero-voltage zero-current switch, three-level DC converter

In order to remove circulating current of zero-voltage switch three-level DC converter in zero state, we come up with kind of zero-voltage zero-current switch three-level DC converter circuit. The circuit is shown in the following diagram 1, the main difference between this circuit and zero-voltage switch three-level DC converter is: add coupling capacitance C55 and add pilot switch SAUX and clamp capacitance CAUX in transformer secondary winding; coupling capacitance C55 separately connect the switch process of outer outer-side tube VT1, VT4 and in side tube VT2, VT3. 2, this circuit adopts blocking capacitor as blocking voltage source, let transformer once side current decrease to zero in zero state, thereby achieve zero current switch of in side switch tube. 3, This diagram separately series diode VT2 and VT3 in branch circuit of VT2 and VT3 in order to prevent the transformer once side current to continue flow in negative direction in zero state. It removes the minus effect after adding saturated inductance. (View)