Ch-technology PS22A74 Manual de usuario descargar pdf (Pagina 6)

PS22A74

Intellimod™ Module

Dual-In-Line Intelligent Power Module

15 Amperes/1200 Volts

Powerex, Inc., 173 Pavilion Lane, Youngwood, Pennsylvania 15697 (724) 925-7272

5Rev. 08/09

Application Circuit

Component Selection:

Dsgn. Typ. Value Description

1A, 600V Control and boot strap supply overvoltage suppression

24V, 1W Control and boot strap supply over voltage suppression

10-100µF, 50V Boot strap supply reservoir – electrolytic long lifem low impedance, 105°C

0.22-2.0µF, 50V Local decoupling/High frequency noise filters – multilayer ceramic (Note 4)

200 to 2500µF, 450V Main DC bus filter capacitor – electrolytic, long life, high ripple current, 105°C

100pF, 50V Optional input signal noise filter – multilayer ceramic (Note 11)

0.1-0.22µF, 1000V Surge voltage suppression (Note 2)

1000pF, 50V Short circuit detection filter capacitor – multilayer ceramic

1.8kΩ Short circuit detection filter resistor

SHUNT

20ohm-500ohm Current sensing resistor

1-10Ω Boot strap supply inrush limiting resistor – non-inductive, temperature stable, tight tolerance (Note 5)

330Ω Optional input signal noise filter (Note 11)

10kΩ Fault signal pull-up resistor (Note 9)

Notes:

1) If control GND is connected to power GND by broad pattern, it may cause malfunction by power GND fluctuation.

It is recommended to connect control GND at only a point at which NU, NV, NW are connected to power GND line.

2) To prevent surge destruction, the wiring between the smoothing capacitor and the P-N1 terminals should be as short as

possible. Generally inserting a 0.1µ ~ 0.22µF snubber capacitor C

between the P-N1 terminals is recommended.

3) The time constant R

of RC filter for preventing the protection circuit malfunction should be selected in the range of 1.5µ ~ 2µs.

SC interrupting time might vary with the wiring pattern. Tight tolerance, temp-compensated type is recommended for R

4) All capacitors should be mounted as close to the terminals of the DIPIPM as possible. (C

: good temperature, frequency

characteristics electrolytic type, and C

: good temperature, frequency and DC bias characteristic ceramic type are recommended.)

5) It is recommended to insert a Zener diode DZ

(24V/1W) between each pair of control supply terminals to prevent surge destruction.

6) To prevent erroneous SC protection, the wiring from V

terminals to C

filter should be divided at the point D that is close

to the terminal of sense resistor and the wiring should be patterned as short as possible.

7) For sense resistor, the variation within 1% (including temperature characteristics), low inductance type is recommended.

1/8W is recommended, but an evaluation of your system is recommended.

8) To prevent erroneous operation, wiring A, B, and C should be as short as possible.

9) F

output is open drain type. It should be pulled up to the positive side of 5V or 15V power supply with a resistor that limits

sink current (I

) under 1mA. (Over 5.1kΩ is needed and 10kΩ is recommended for 5V supply.)

10) Error signal output width (t

) can be set by the capacitor connected to the C

terminal. t

FO(typ)

= C

/ 9.1 x 10

-6

(s).

11) Input drive is high-active type. There is a 3.3kΩ pull-down resistor integrated in the IC input circuit. To prevent malfunction, the wiring of each input

should be patterned as short as possible. When inserting the RC filter, make sure the input signal level meets the turn-on and turn-off threshold voltage.

Thanks to HVIC inside the module, connection to the MCU may be direct or with an opto-coupler.

SHUNT

CFO

HVIC1

IGBT1

FWDi1

IGBT2

FWDi2

IGBT3

IGBT4

IGBT5

IGBT6

FWDi3

FWDi4

FWDi5

FWDi6

LVIC

HVIC2

WFB

WFS

HVIC3

15V

VFB

VFS

MCU

UFB

UFS

1 2 3 4 5 6 7 8

Comentarios a estos manuales

Sin comentarios

Ch-technology PS22A74 Manual de usuario Pagina 6

Comentarios a estos manuales

Relacionado con productos y manuales para Hardware Ch-technology PS22A74