DC to Pulse Width Modulator Kit

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Item: K8004

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1	$ 23.900

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DC to Pulse Width Modulator Kit

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This control circuit is ideal for the accurate control of DC motors lighting levels small heaters as well as other applications. The circuit converts a DC voltage into a series of pulses such that the pulse duration is directly proportional to the value of the DC voltage. The great advantage of such a circuit is that almost no power is lost in the control circuit. Can for example be used with K8000.

Specifications

Protected against overload and short circuit.
PWM range: 0 to 100%
PWM frequency: 100 Hz to 5 kHz (adjustable)
Minimum PWM offset: 0 to 20% (adjustable)
Adjustable sensitivity: 2.5 to 35 VDC
Operating voltage: 8 to 35 VDC
Minimum consumption: 35 mA
Maximum output current: 6.5 A
Input voltage: between 0 and 35 VDC
Efficiency: better than 90% at full load.
Dimensions (wxlxh): 85 x 48 x 45mm

Parts List

Label	Artnr	Qty	Description
C1...C4	C100N0M	4	100nF CERAMIC MULTILAYER CAPACITOR
C5 C6	10J0E	2	ELCO PRINT 10µF-35V
C7	100J0J	1	ELCO PRINT 100µF-50V
D1 D2	1N4148	2	SMALL SIGNAL DIODE
D3	1N4007	1	DIODE 1A-1000V
D4	6A2	1	DIODE 6A-200V
IC1	SG3525	1	DUAL PWM VOLTAGE MODE CTRL TOTEM POLE
J1...J3	SCREW02	3	SCREW CONNECTOR PRINT 2 CONT.
R1 R2	RA220E0	2	RESISTOR 1/4W 220E
R3 R4	RA2K2	2	RESISTOR 1/4W 2K2
R5	RA10K0	1	RESISTOR 1/4W 10K
R6	RA100K0	1	RESISTOR 1/4W 100K
R7	RA220K0	1	RESISTOR 1/4W 220K
R8...R10	RE0E22	3	RESISTOR 5W 0.22E
RL	RA4K7	1	RESISTOR 1/4W 4K7
RV1 RV2	K010SH	2	PIHER TRIM 10K SMALL HOR
RV3	K220SH	1	PIHER TRIM 220K SMALL HOR
T1	BC547B	1	SI-NPN 50V-0.2A
T2	BUK555'60B	1	LOGIC LEVEL MOSFET 60V
16P	16P	1	16P DIL IC SOCKET 300MIL
BT30100	BT30100	1	M3 BOLT 3X10mm
H8004B'1	H8004B'1	1	ASSEMBLY MANUAL
H8004P'1	H8004P'1	1	PARTSLIST
HS5002	HS5002	1	HEATSINK ML73/1.5
MR3	MR3	1	M3 NUT
P8004'2	P8004'2	1	PCB
PRINTP	PRINTP	1	PCB TAB
PV/1Z	PV/1Z	2	SCREW2.9X6.5
RM3K	RM3K	1	M3LOCK WASHER (DIN6798AZ)

Kit Manual