Power supplies

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Power supplies

Dual Unregulated Power Supply

Four on-board 100V, 3A diodes plus 2200uF/50V electrolytics to provide an unregulated power supply from a center-tapped transformer. Many power amplifiers require a dual DC power supply for their operation. Usually this consists of some diodes and electrolytic capacitors to convert an AC voltage to a +/- DC voltage. This simple kit does just that, with all the components mounted on a small PCB to avoid the usual spaghetti-wired mass (mess?). The kit is constructed on single-sided printed circuit board. (CPS114)

Quantity	Price
1 – 9	$13.11
10 – 99	$12.42
100 +	$11.39

Skill Level of Item:		(Kit - Basic Soldering Required)
Product #		CPS114
Quantity Available:		5

Positive Adjustable Power Supply Module

Compact positive adjustable power supply +/- 1.5V to 35V depending on input power source. On-board heatsink. It is ideal for powering any application requiring a DC supply at current levels up to 1.5A
FEATURES:
· Output reverse polarity and back-voltage protection
· LED power on indication
· On board heatsink for IC regulator
· Variable output voltage
· AC or DC input voltage
· Low noise (uses linear regulator)
· Screw terminals for input, output and LED indicator
· PCB size: (84 x 37 mm) (3.1" x 1.5")
This kit can be combined with Kit CPS125 to create a dual-rail supply. The kit is constructed on a single-sided printed circuit board (PCB).
(CPS124)

Quantity	Price
1 – 9	$14.25
10 – 99	$13.50
100 +	$12.38

Skill Level of Item:		(Kit - Basic Soldering Required)
Product #		CPS124
Quantity Available:		9

Negative Adjustable Power Supply Module

Compact negative adjustable power supply +/- 1.5V to 35V depending on input power source. On-board heatsink. It is ideal for powering any application requiring a DC supply at current levels up to 1.5A
FEATURES:
· Output reverse polarity and back-voltage protection
· LED power on indication
· On board heatsink for IC regulator
· Variable output voltage
· AC or DC input voltage
· Low noise (uses linear regulator)
· Screw terminals for input, output and LED indicator
· PCB size: (84 x 37 mm) (3.1" x 1.5")
This kit can be combined with Kit CPS124 to create a dual-rail supply. The kit is constructed on a single-sided printed circuit board (PCB).
(CPS125)

Quantity	Price
1 – 9	$15.39
10 – 99	$14.58
100 +	$13.37

Skill Level of Item:		(Kit - Basic Soldering Required)
Product #		CPS125
Quantity Available:		3

Basic Power Supply Module (incl box)

Batteries soon become an expensive way to power your electronic kits and electronic games. This is a basic power supply in a box using two 7805 regulators. Input up to 20V AC from a transformer or power pack. Two regulated outputs are available - one fixed at 5V, the other variable. Good introduction to three terminal regulators.(CPS4)

Quantity	Price
1 – 9	$12.54
10 – 99	$11.88
100 +	$10.89

Skill Level of Item:		(Kit - Basic Soldering Required)
Product #		CPS4
Quantity Available:		6

Regulated Power Supply

Kit accepts an unregulated AC or DC input. The user supplies a standard 3 pin voltage regulator from 5 volts (using a 7805) to 24 volts (7824). The full range of possible regulators is: 7805, 7806, 7808, 1810, 7812, 7815, 7818 & 7824. Large heat-sink provided. PCB size: 64mm x 40mm (2 1/2" x 1 1/2")(CPS60)

Quantity	Price
1 – 9	$7.98
10 – 99	$7.56
100 +	$6.93

Skill Level of Item:		(Kit - Basic Soldering Required)
Product #		CPS60
Quantity Available:		11

Power supply voltage adj. 1.5 to 30V kit

This is a basic adjustable voltage power supply using the popular three pin regulator, LM317T. You can select any voltage between 1.5V and 30V using a potentiometer. The LM317T is rated at 1.5A so you must use a larger heat sink when drawing high currents. Unregulated AC or DC input via terminal block or power jack. Requires a suitable transformer.(CPS68)

Quantity	Price
1 – 9	$10.26
10 – 99	$9.72
100 +	$8.91

Skill Level of Item:		(Kit - Basic Soldering Required)
Product #		CPS68
Quantity Available:		15

Universal Power Supply

Put in your own 78xx and 79xx 3-pin regulators (TO-220 type) to give fixed positive and negative voltage outputs which you want for your project. Supplied with 2 small heatsinks. Requires center-tapped AC voltage source. PCB size: 78mm x 43mm (3.1" x 1.7").(CPS83)

Quantity	Price
1 – 9	$13.11
10 – 99	$12.42
100 +	$11.39

Skill Level of Item:		(Kit - Basic Soldering Required)
Product #		CPS83
Quantity Available:		3

Dual Unregulated Power Supply (kit)

designed for our CPS106 audio power
amplifier. It is also suitable for any power
amplifier module or circuit requiring a
positive and negative rail voltage of up to
45 Volts per side. The output voltage and
current will depend on the transformer
chosen, and this is not supplied with the
kit. Never use a transformer larger than
35V-0-35V, as the capacitors voltage
rating will be exceeded. (CPS186)

Quantity	Price
1 – 9	$12.54
10 – 99	$11.88
100 +	$10.89

Skill Level of Item:		(Kit - Basic Soldering Required)
Product #		CPS186
Quantity Available:		2

COMPACT SWITCHING ADAPTER 70W 12VDC

Quantity	Price
1 – 9	$53.63
10 – 99	$49.82
100 +	$48.15

Skill Level of Item:		(Assembled and Tested)
Product #		PSS1255
Quantity Available:		6

COMPACT SWITCHING ADAPTER 70W 15VDC / 4.6A

Quantity	Price
1 – 9	$53.63
10 – 99	$49.82
100 +	$48.15

Skill Level of Item:		(Assembled and Tested)
Product #		PSS1546
Quantity Available:		3

COMPACT SWITCHING ADAPTER 70W 18VDC / 3.9A

Quantity	Price
1 – 9	$53.63
10 – 99	$49.82
100 +	$48.15

Skill Level of Item:		(Assembled and Tested)
Product #		PSS1839
Quantity Available:		8

COMPACT SWITCHING ADAPTER 70W 24VDC

Quantity	Price
1 – 9	$53.63
10 – 99	$49.82
100 +	$48.15

Skill Level of Item:		(Assembled and Tested)
Product #		PSS2430
Quantity Available:		3

COMPACT SWITCHING POWER SUPPLY 24W WITH SELECTABLE OUTPUT

Quantity	Price
1 – 9	$30.09
10 – 99	$27.95
100 +	$27.01

Skill Level of Item:		(Assembled and Tested)
Product #		PSSMV3
Quantity Available:		4

COMPACT SWITCHING POWER SUPPLY 28W WITH SELECTABLE OUTPUT (Out of Stock)

Get rid of those bulky power-hungry heat-producing mains adapters. These adaptors use state-of-the-art switching power supplies and feature some major advantages such as: - cooler running - stabilized output - short-circuit and overload protection - compact design - very low idling consumption

Features
8 different DC plugs can be mounted

Specifications:
supply voltage: 100 ~ 240V AC 50/60Hz
power: 28W
high efficiency: typ. 80%
selectable output: 5, 6, 7.5, 9, 12, 15V DC
output current: 3.6A max.
very low consumption during stand-by: approx. 8%
output plugs: 2.5mm, 3.5mm, 3.0x1.0, 3.5x1.0, 4.0x1.5, 5.0x2.0, 5.5x1.0, 5.5x2.0mm
dimensions: 3.7" x 2.2" x 1.2"
(PSSMV4U)

Quantity	Price
1 – 9	$38.52
10 – 99	$35.78
100 +	$34.58

Skill Level of Item:		(Assembled and Tested)
Product #		PSSMV4U
Quantity Available:		0

SYMMETRIC 1A POWER SUPPLY

Features
low cost universal symmetric power supply
just add a suitable transformer and a heatsink
ideal for e.g. op-amp applications, amplifiers, ...
trimmers can be replaced by potmeters to allow continuous adjustment of output voltage
LED output indicators
compact size

Specifications
positive and negative output adjustable between 1.2 and 24VDC
output current: up to 2 x 1A continuous (with suitable heatsink)
max. input voltage: 2 x 24VAC
very good line and load regulation
low ripple
short circuit protection
thermal protection
optional heat sink: HS4003 (for maximum 20W dissipation)
dimensions: 3.1" x 2.0" x 0.9" (K8042)

Quantity	Price
1 – 9	$15.56
10 – 99	$14.74
100 +	$13.51

Skill Level of Item:		(Kit - Basic Soldering Required)
Product #		K8042
Quantity Available:		8

CAR BATTERY PROTECTOR 12V-12V / MAX. 10A

The battery protector prevents appliances (e.g. cooler) from draining the battery of your car. The device continuously monitors the voltage and charge status of your car battery.

Specifications

input voltage: DC 12V
connected voltage: 12.5V ± 0.3V
cutoff voltage: 11.2V ± 0.3V
maximum operating current: 10A (protected by 10A fuse) (PSPC10BP)

Quantity	Price
1 – 9	$16.42
10 – 99	$15.55
100 +	$14.26

Skill Level of Item:		(Assembled and Tested)
Product #		PSPC10BP
Quantity Available:		13

FIXED REGULATED POWER SUPPLY DESKTOP 1.5A - 115V

Features
with on-off switch
very low ripple noise
LED power indication
short-circuit protection
overload protection

Specifications
selectable regulated output voltages: DC 3 - 4.5 -6 - 7.5 - 9 - 12V
output current: 1.5A (2A peak)
dimensions: 6.1" x 3.7" x 2.8"
weight: 2.73lbs
power source: 115V AC / 60Hz

(PS2122LEU)

Quantity	Price
1 – 9	$30.23
10 – 99	$28.08
100 +	$27.14

Skill Level of Item:		(Assembled and Tested)
Product #		PS2122LEU
Quantity Available:		7

1A POWER SUPPLY KIT

This small power supply provides a regulated voltage, adjustable between 1.5 and 35 volts at 1 Amp. With the LM317 regulator remarkably better ripple and regulation characteristics are given than with conventional regulators. Current limiter and thermal overload protection are included in the IC. Supplied without heatsink.

Specifications

output current: 1.5A max.
max. dissipation: 15W (cooled)
max. input voltage: 40V DC
PCB dimensions: 2.1" x 2.1"
(K1823)

Quantity	Price
1 – 9	$12.83
10 – 99	$12.15
100 +	$11.14

Skill Level of Item:		(Kit - Basic Soldering Required)
Product #		K1823
Quantity Available:		10

UNIVERSAL POWER SUPPLY 5-14V DC / 1A

Suits all Velleman kits requiring a regulated power supply between 5 and 12V DC, and no more than 1A.

Specifications

input voltage: 7-16V DC / 1A
output voltage: 5-14V DC, regulated
output current: max. 1A
power limitation and thermal overload protection
max. dissipation: 7W
PCB dimensions: 3.0" x 2.4"
(K2570)

Quantity	Price
1 – 9	$16.93
10 – 99	$16.04
100 +	$14.70

Skill Level of Item:		(Kit - Basic Soldering Required)
Product #		K2570
Quantity Available:		5

3 TO 30V / 3A POWER SUPPLY

This kit is meant as an auxiliary or as a permanent power supply for all common Velleman kits based on a stabilized DC voltage between 3 and 30V provided that the consumption does not exceed 3A. Of course this power supply unit can also be used for other purposes. Be replacing the trimmer by a potentiometer, it may even be used as an adjustable power supply unit. Supplied with heatsink.
(K7203)

Quantity	Price
1 – 9	$38.52
10 – 99	$35.78
100 +	$34.58

Skill Level of Item:		(Kit - Basic Soldering Required)
Product #		K7203
Quantity Available:		7

UNIVERSAL REGULATED SWITCHING MODE ADAPTER 120W WITH SELECTABLE OUTPUT 15 TO 24VDC

Get rid of those bulky power-hungry heat-producing mains adapters. These adaptors use state-of-the-art switching