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Replacement Laptop DC Car Power Adapters for HP COMPAQ

Are you looking for it: high quality HP COMPAQ DC car adapter, discount HP COMPAQ DC car adapter, cheap HP COMPAQ DC car adapter? Well, rest assured that the best value for your replacement adapter is not the original manufacturer.
Please select your HP COMPAQ model below to find a suitable replacement Laptop DC (in-car) Adaptor
2533t Mobile Thin Client 4320t Mobile Thin Client 4410t Mobile Thin
6535s 6720t Mobile Thin Client Business Notebook 2210b
Business Notebook 2230s Business Notebook 2510p Business Notebook 2710p
Business Notebook 6510b Business Notebook 6515b Business Notebook 6520s
Business Notebook 6530b Business Notebook 6530s Business Notebook 6531s
Business Notebook 6535b Business Notebook 6710b Business Notebook 6710s
Business Notebook 6715b Business Notebook 6715s Business Notebook 6720S
Business Notebook 6720t Business Notebook 6730b Business Notebook 6730s
Business Notebook 6735b Business Notebook 6735s Business Notebook 6820s
Business Notebook 6820S Business Notebook 6830s Business Notebook 6910p
Business Notebook 8510p Business Notebook 8710p Business Notebook n1050v
Business Notebook nc2400 Business NoteBook nc2400 Business Notebook nc2410
Business Notebook nc4000 Business Notebook NC4000 Series Business Notebook nc4010
Business Notebook nc4200 Business Notebook NC4200 Business Notebook nc4400
Business Notebook NC4400 Business Notebook nc6000 Business Notebook nc6110
Business Notebook nc6120 Business Notebook nc6140 Business Notebook nc6220
Business Notebook nc6230 Business Notebook nc6320 Business Notebook nc6400
Business Notebook NC6400 Business Notebook nc8000 Business Notebook NC8000 series
Business Notebook nc8200 Business Notebook nc8230 Business Notebook nc8430
Business Notebook nw8000 Business Notebook nw8200 Business Notebook nw8240
Business Notebook nx5000 Business Notebook nx6110 Business Notebook nx6115
Business Notebook NX6115 Business Notebook nx6120 Business Notebook NX6120
Business Notebook nx6125 Business Notebook nx6130 Business Notebook nx6310
Business Notebook NX6310 Business Notebook nx6315 Business Notebook NX6315
Business Notebook nx6320 Business Notebook NX6320 Business Notebook nx6325
Business Notebook nx6330 Business Notebook nx7000 Business Notebook nx7010
Business Notebook nx7300 Business Notebook nx7400 Business Notebook nx8200
Business Notebook nx8220 Business Notebook nx8410 Business Notebook nx9000
Business Notebook nx9000 Series Business Notebook nx9005 Business Notebook NX9008
Business Notebook nx9010 Business Notebook nx9020 Business Notebook nx9030
Business Notebook nx9040 Business Notebook nx9420 Business Notebook NX9500
Business Notebook tc4400 Business Notebook zt3200 Business Notebook zt3201US
Business Tablet PC M2000 Business Tablet PC tc1000 Business Tablet PC tc1100
Business Tablet PC tc4200 Client Mini-Note 2133
Mobile Workstation 8510w Mobile Workstation 8710w Mobile Workstation nw8000
Mobile Workstationn w8240 Mobile Workstation nw8440 Mobile Workstation nw9440
Mobile Workstation nx8240 Mobile Workstation nx8420 Notebook nc6110
Pavilion dv3000 Series Pavilion dv3022TX Presario B1200 Series
Presario B1210 Tablet PC M2000 Tablet PC TC1000
Tablet PC TC1100 tc4200 Tablet PC tc4400 Tablet PC
The adapter supplied by our Company are [replacement for] sold for use with certain products of computer manufacturers, and any reference to products or trademarks of such companies is purely for the purpose of identifying the computers with which our products [are replacement for] may be used. Our Company and this Website are neither affiliated with, authorized by, licensed by, distributors for, nor related in any way to these computer manufacturers, nor are the products offered for sale through our Website manufactured by or sold with the authorization of the manufacturers of the computers with which our products [are replacement for] may be used.

Power adapters come in two basic varieties AC/AC and AC/DC:

AC/DC— In its most basic form, a diode is added to the AC/AC adapter circuitry to create an AC/DC power adapter. The lowest cost DC power adapters use half wave rectification, however generally for few cents more you can a full wave rectification.

Common today is the center-tapped design where each half of the secondary transformer winding is idle half of the time. The primary drawback to this design is you have to use a bigger transformer to get the same power output.

The single diode, half wave rectification DC adapter is ideal for use in toy motors, battery adapters and other applications where the 100% ripple and 50% duty cycle won’t affect performance. Simply adding a capacitor can smooth out the ripple, but since it typically needs a larger capacitor at a higher cost than full wave bridge rectification, the design decision is usually in favor of the full wave rectifier.

Full wave rectifiers also have 100% ripple though the DC component of the power frequency spectrum that is much larger than that with half-wave adapters. Adding a capacitor can smooth out the ripple to some extent; however if ripple is important to you, you need to specify it. The reason? As a capacitor gets bigger, it also gets more expensive, and extra expense is what most manufacturers avoid in this highly price sensitive market.

So far none of the AC/DC power adapters mentioned have added line regulation. It is possible to add a three terminal voltage regulator to the adapter to perform volt line and load regulation, but the limited heat sinking capability limits these adapters to low power applications. If you need well-regulated power, you may want to consider using an unregulated power adapter and handle the filtering and regulation in your own product or use a switching power supply that supports a wider range of input voltages. System Connection offers regulation as an option in all our OEM power supplies, linear or switching

The range of output connectors for wall-plug power supplies is unlimited, but the most popular are listed on our Design Your Own Power Adapter form. The most commonly used is the 5.5 x 2.5 mm barrel connector, with center positive. The cost affect is minimal between the various phonon style plugs so just select the version that best matches the design requirements of the project, and decide if cable should exit the mold at 90 degrees or 180 degrees.

Wall plug-in power adapters are certified by safety agencies. The adaptors are required to have a thermal fuse to protect against fire if there is a short circuit. Typically, they are soldered-in glass tube type fuses, which are not user replaceable. Glass tube fuses protect the primary side of the transformer and are rated at 240 volts. Don’t get confused by this rating, even a 110 volt input wall power adapters is designed with a fuse rated at 240 volts. The current rating is typically two to three times the rated input current.

Power adapters with UL, TUV, CUL, etc safety approvals will have the input windings of the transformer isolated from the output windings. It is important to note that there is a capacitance between the windings, which could result in a small AC leakage current to ground.

Adapters with safety agency certifications should be properly isolated, eliminating the need for a polarized connector, or a three-pin plug. While it may be useful in certain applications to have a ground connection to reduce hum, such power adapters are rare for commercial applications.

This safety certification is a design advantage because when wall mount power adapters have all the necessary safety agency certifications, you avoid the cumbersome, time consuming and costly safety certification process you would need to endure if you had AC going into your product. For this reason, AC adapters have become so ubiquitous on many of the products we see today.


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