Datasheet

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VM124: p35
VM143/1W: p37 VM143/3W: p37
Power supplies
K8042
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
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 heatsink: HS4003 (for maximum 20W dissipation)
• dimensions: 78 x 52 x 24mm / 3.1 x 2 x 0.9”
Power up to four 1W or two 3W high-power LEDs (not incl.).
350mA or 700mA constant current source
• input voltage: 6..12VAC/9-18VDC
• power consumption: 650mA max.
• dimensions: 45x30x16mm / 1.8x1.2x0.64”
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.
• output current: 1.5A max.
• max. dissipation: 15W (cooled)
• max. input voltage: 40VDC
• PCB dimensions: 52 x 30mm / 2.1 x 1.2”
Charges NiCd or NiMH batteries.
• Ideal for car use.
• Transforms a mains adapter in to a charger
(adapter socket included).
• Charge cellular phone, toys, portables, video
batteries...
• Selectable charging current.
• LED charge indication.
• charging current: 50mA, 100mA, 200mA, 300mA,
400mA (selectable)
• supply voltage: from 6.5V to 21V (depending on
used battery)
• supply current: same as charging current
• power supply polarity protected
• LED function indication
• dimensions: 40 x 60mm / 1.6 x 2.4”
K8012
This lead-acid battery charger/conditioner is suitable for charging and maintaining both
open and sealed type 6 or 12V lead-acid batteries.
• Charging current : 0.3 or 1A.
• The battery can be hooked-up to the unit for an indefinite time, and will be kept in
optimal condition.
• Battery type and charging current are selectable, while the charging process is fully
automatic.
• suitable for 6 and 12V open and sealed type lead-acid batteries. status indicators
for charge, float and end-of-charge. can continuously remain hooked-up to the
battery. inverse polarity protection provided. needs an 18V/25VA transformer
(not included)
• charging current: 0.3 or 1A (selectable)
• PCB dimensions: 97 x 140 x 40mm / 3.8 x 5.5 x 1.6”
This kit is meant as an auxiliary or as a permanent power supply for all common
Velleman kits based on a stabilised 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.
• By replacing the trimmer by a potentiometer, it may even be used as an
adjustable power supply unit.
• Supplied with heat sink.
• output voltage: adjustable from 3 to 30V, stabilised
• output current: max. 3A
• output ripple voltage: 0.5mV
• short-circuit stable
• overload protected
• input voltage: 9 to 30VAC (depending on the desired output voltage)
• transformer not supplied
• dimensions: 130 x 91 x 50mm / 5.1 x 3.6 x 2”
Suits all Velleman kits requiring a regulated power supply between 5
and 12VDC, and no more than 1A.
input voltage: 7-16VDC / 1A
• output voltage: 5-14VDC, regulated
• output current: max. 1A
• power limitation and thermal overload protection
• max. dissipation: 7W
• PCB dimensions: 77 x 61mm / 3 x 2.4”
Many battery chargers are available on the market, but few of them are
universal chargers.
• Using our kit, NiCd and NiMH batteries or different can be charged
both quickly (52 minutes) and normally (14 hours).
• In order to ensure that the battery is fully discharged prior to charging
and thus has a longer life cycle, an automatic discharger is also fitted.
• charging current: from 15mA to 750mA (selectable)
• charges both NiCd and NiMH batteries
• usable battery voltages: 1.2V, 2.8V, 3.6V, 4.6V, 6V, 7.2V, 8.4V and
9.6V
• quick charge in 52 minutes / normal charge in 14 hours
• automatic discharge and charge cycle
• dimensions: 85 x 78mm / 3.4 x 3.1”
K7300
K2570 K7203
K7302
K1823
K8071
mounted versionmounted version
mounted version
K1823
1a power supply kit
K2570
Universal power supply 5-14vdc / 1a
K7 203
3 to 30v / 3a power supply
K8071
1w/3w high-power led driver
K8042
Symmetric 1a power supply
K7300
Universal battery charger/discharger
K7302
Low cost universal battery charger
K8012
Lead-acid battery charger/conditioner