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Inverters and Drives from TDK - Hero Banner

Inverters & Drives from TDK

Mixed Media - Output Filtering

Output filtering

The output stage of a drive takes a three-phase AC output with variable frequency and amplitude for fine speed and torque control and filters it to minimise EMI and provide reliable operation of the power converter and load. Ferrite cores reduce EMI caused by the switching (e.g. a switching frequency of 10kHz leads to EMI of 1MHz).
Filters such as motor chokes, sine-wave filters and SineFormer® filters are complete solutions providing optimisation for demanding applications with long cable lengths from the output to the motor. Filtering on the output can also be performed by discrete AC capacitors.
Finally, Y capacitors are used to filter out common-mode noise and are selected to ensure they do not short-circuit and thus protect against shock to the user.

Power Line Filters (Ferrite Cores) - Table

Power line filters (ferrite cores)

Product Type	Series	Technical Data	Datasheet	Features Overview
Power Line Filter (Ferrite Core)	B64290L	Core Shape: R9.3 … R202 Epoxy-coated Material: K10, N30, T38 & T65	Download	Wide range of core sizes upto 200mm outer diameter Epoxy coated for electrical isolations up to 2kV Recommended materials T38, T65, N30 & K10 depending on frequency
Power Line Filter	B82725S2*	Rated current: 6 … 10 A Rated Inductance: 2.8 … 7.8 mH Rated voltage: 250 VAC	Download	High Resonance frequency Approx. 1% stray inductance for symmertical interference suppression On baseplate, winding wire serves as solder terminal
Power Line Filter	B82746S*	Rated current: 8 … 20 A Rated Inductance: 0.75 … 6.2 mH Rated voltage: 550/320 VAC; 520/300VAC; 500/300 VAC	Download	High resonance frequency Approx. 0.5 … 1.1% stray inductance for differential-mode interference suppression Suitable for wave soldering Design complies with EN 60938-2 (VDE 0565-2)
Power Line Filter	B82747E/S	Rated current: 16 … 35 A Rated Inductance: 0.57 … 2.2 mH Rated voltage: 600/350VAC; 520/300 VAC; 500/300VAC; 440/250 VAC	Download	Designed for high voltages Glueless design Design complies with EN 60938-2 (VDE 0565-2) UL (please see datasheet)

Table - Output Filters

Output filters

Product Type	Series	Technical Data	Datasheet	Features Overview
Output Filter	B84143V*R127	3-line sine Former Rated current IR: 6 A to 320 A Rated voltage VR: 520 V AC, 50/60 Hz	Download	Supersede shielded motor cables Motor noise reduction Reduced motor bearing current Low dv/dt values - reduced eddy current losses Easy to install & Compact design Optimized for long motor cables up to 1000 m and operation under full load2) No integrated forced ventilation (maintenance-free) No DC-link connection required Design complies with EN 60939, UL 1283, CSA 22.2 No.8 UL and cUL approval
Output Filter	B84143V*R227	3-line sine-wave filter Rated current IR: 4 A to 320 A Rated voltage VR: 520/300 V AC and 690/400 V AC	Download	Reduction of motor noise and eddy current losses Generation of sinusoidal phase-to-phase voltage with low ripple dv/dt reduction Easy to install & Compact design Degree of protection: IP20 up to 95 A1) Optimized for long motor cables and operation under full load2) Natural cooling Wiring between inverter and filter must be shorter than 10 meters! Up to 180 A: tube clip for convenient shield bonding UL approved insulation system T-EIS-CF1
Output Filter	B84143V*R/S229 & 230	3-line sine-wave filter Rated current IR: 4 A to 390 A Rated voltage VR: 300 V AC and 520 V AC Rated voltage VR: 400 V AC and 690 V AC	Download	Reduction of motor noise and eddy current losses Generation of sinusoidal phase-to-phase voltage with low ripple dv/dt reduction Easy to install & Compact design Degree of protection: IP20 up to 95 A1) Optimized for long motor cables and operation under full load2) Natural cooling Wiring between inverter and filter must be shorter than 10 meters! Up to 180 A: tube clip for convenient shield bonding UL approved insulation system T-EIS-CF1
Output Filter	B86301U*R000/S000	3-phase motor choke 4 to 1500A/520 V 1% impedance reactor	Download	Easy to install Low weight & compact design Design complies to IEC 60076-6 UL approved isolation system class F (155°C) IP Protection degree IP20 ≤ 20 A, 24 A ≤ IP 10 ≤ 112 A, IP 00 > 112 A Optimised up to 100m motor cable length

Table - AC-Capacitors

AC-capacitors

Product Type	Series	Technical Data	Datasheet	Features Overview
AC-Capacitor	B3236*	MKP AC Power Capacitor Rated Capacitance: 10µF … 600 µF Rated Voltage: 250 … 480 V AC	Download	Low end MKV replacement Different terminal configurations (M6-M10) Fluid resin (resinal( filled) with overpressure disconnector
AC-Capacitor	B32332	MKP AC Power / Filter Capacitor Rated Capacitance: 2.5µF … 60 µF Rated Voltage: 450 V AC	Download	Self-healing properties Low dissipation factor, High insulation resistance Overpressure disconnection safety device S2 safety class as per IEC-60252-1(ed-2) am1 EN 60335-1 compliance on request
AC-Capacitor	B32354S	MPP AC Power / Filter Capacitor Rated Capacitance: 10µF … 40 µF Rated Voltage: 250 … 350 V AC	Download	Protected component by segmented film Low profile, compact design UL 810 compatible NEW: 85°C 85% 1000 h, UN compatible available

Table - Y Caps

Y caps

Product Type	Series	Technical Data	Datasheet	Features Overview
Y Caps	B3202x	Y2 EMI Suppression Capacitor Rated Capacitance: 1 nF … 1 uF Rated Voltage: 300 V AC Operating Temperature -25°C to +125°C	Download	Standard EMI Suppression capacitor for EMC fintering Good self healing properties High voltage capabilities & very small dimensions

Table - Motor Protection

Motor protection

Product Type	Series	Technical Data	Datasheet	Features Overview
Motor Protection Single or Triple sensors	B59100 / B59300	Maximum voltage: 30v Rated resistance: <100 … 300 Ω	Download	Characteristics for sensing temperatures compliant with DIN 44081/44082 Customer specific lead lengths on request

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Right Rail Card Dark - Protection

Protection

Thermistors acting as inrush current limiters are a low cost solution to this problem whilst input varistors are used to provide surge protection against voltage spikes on the input.

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Right Rail Card Dark - Input Filtering

Input filtering

EMC input filter requirements include limitation of conducted and radiated emissions, immunity to transients and surges on the power lines, and immunity to levels of external electromagnetic radiation and electrostatic discharge.

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Right Rail Card Dark - Rectification

Rectification

Each AC input phase is rectified by 3 diodes (top diode in the positive direction and the low side diode of the other two phases) so that the peak of the negative half cycle appears positive.

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Right Rail Card Dark - DC-Link

DC-Link

A DC-link capacitor is fitted at this point to provide a low impedance path for high frequency switching currents and to provide energy storage.

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Right Rail Card Dark - Conversion

Conversion

At the conversion stage of a variable frequency drive, the DC voltage is converted into an AC voltage at a given but variable voltage and frequency to drive the motor.

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Right Rail Card Dark - Thermal Management

Thermal management

In a drive, the heatsink’s role is to cool the semiconductors and DC link capacitors and prevent overheating.

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Right Rail Card Dark - Driver and Controller

Driver and controller

The Control and Feedback stages analyse signals from the current sensors mounted at the motor output, measure the temperature of sensors and control the driver for the conversion semiconductors.

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