Power supply circuit

Example of AC-DC converter circuit (flyback type)

Details of the power supply circuit for high-function printer

Lineup

Schottky barrier diode

Part number CMS15
Package M-FLAT™
VRRM [V] 60

IF(AV) [A]

3.0
VFM (Max) [V] 0.58
Cj (Typ.) [pF] 102

Fast recovery diode

Part number CRF03A
Package S-FLAT™

VRRM [V]

600
IF(AV) [A] 0.7
VFM (Max) [V] 2.0
IRRM (Max) [μA] 50

π-MOS Series MOSFET

Part number TK2K2A60F
Package TO-220SIS

VDSS [V]

600
ID [A] 3.5
Ciss (Typ.) [pF] 450
RDS(ON) [Ω] Typ. 1.82
Max 2.2
Polarity N-ch

Transistor output photocoupler

Part number TLP383 TLP385 TLP387 TLP388
Package 4pin SO6L

VCEO [V]

80 80 300 350
BVS [Vrms] 5000 5000 5000 5000
Topr [℃] -55 to 125 -55 to 110 -55 to 110 -55 to 125

Bipolar transistor

Part number TMBT3904
Package SOT23

VCEO [V]

50
IC [mA] 200
VCE(sat) (Max) [V] 0.3
hFE 100 to 300 @ IC = 10 mA
Polarity NPN

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* M-FLAT™ is a trademark of Toshiba Electronic Devices & Storage Corporation.
* S-FLAT™ is a trademark of Toshiba Electronic Devices & Storage Corporation.