{"product_id":"30v-5a-dc-power-supply-for-smartphone","title":"30V 5A DC Power Supply for Smartphone \u0026 Tablet Motherboard Repair — 4-Digit Display Bench Unit","description":"\u003ch1\u003eSPPS-C305 Adjustable DC Power Supply for Smartphone \u0026amp; Tablet Repair\u003c\/h1\u003e\n\u003cp\u003eThe \u003cstrong\u003eKUAIQU SPPS-C305 Adjustable DC Power Supply\u003c\/strong\u003e is a compact and precise power source designed for \u003cstrong\u003esmartphone and tablet repair technicians, electronics repair shops, and mobile device motherboard diagnostics\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eDuring smartphone and tablet repair, a stable adjustable power supply is essential for checking power consumption, diagnosing short circuits, testing motherboard power rails, and powering devices during repair when the original battery is unavailable or unsuitable.\u003c\/p\u003e\n\u003cp\u003eWith \u003cstrong\u003e0–30V adjustable output, 0–5A current capability, fine adjustment control, and clear digital readout\u003c\/strong\u003e, the SPPS-C305 provides the control needed for everyday mobile device repair and troubleshooting.\u003c\/p\u003e\n\u003ch2\u003eBuilt for Smartphone \u0026amp; Tablet Repair\u003c\/h2\u003e\n\u003ch3\u003e🔧 Motherboard Short-Circuit Diagnosis\u003c\/h3\u003e\n\u003cp\u003eConnect the power supply directly to the device's power input or battery connector to help identify abnormal current consumption caused by \u003cstrong\u003eshorted components, damaged ICs, or faulty power circuits\u003c\/strong\u003e.\u003c\/p\u003e\n\u003ch3\u003e🔋 Battery \u0026amp; Power Circuit Testing\u003c\/h3\u003e\n\u003cp\u003eUse an adjustable DC output to simulate a battery supply during repair and testing. This allows technicians to evaluate device power behavior without relying entirely on the original battery.\u003c\/p\u003e\n\u003ch3\u003e📱 Smartphone Boot-Current Testing\u003c\/h3\u003e\n\u003cp\u003eMonitor voltage and current while attempting to power a smartphone motherboard. Abnormal current behavior can provide useful clues when diagnosing \u003cstrong\u003eno-power, boot failure, or power-management problems\u003c\/strong\u003e.\u003c\/p\u003e\n\u003ch3\u003e💻 Tablet Motherboard Repair\u003c\/h3\u003e\n\u003cp\u003eThe adjustable output makes the SPPS-C305 suitable for powering tablet motherboards during troubleshooting, component replacement, and post-repair testing.\u003c\/p\u003e\n\u003ch3\u003e⚡ Component \u0026amp; Circuit Testing\u003c\/h3\u003e\n\u003cp\u003eProvide a controlled DC source for testing \u003cstrong\u003epower management circuits, charging circuits, protection circuits, and other motherboard sections\u003c\/strong\u003e during repair.\u003c\/p\u003e\n\u003ch2\u003ePrecise Output Control\u003c\/h2\u003e\n\u003cp\u003eThe SPPS-C305 uses a \u003cstrong\u003edual-knob encoder design\u003c\/strong\u003e for smooth and precise voltage and current adjustment.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e0–30V adjustable voltage\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e0–5A adjustable current\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eFine adjustment for accurate power settings\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eSmooth rotary control\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eIndependent voltage and current adjustment\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThis allows technicians to gradually increase the output while monitoring the device's current consumption during troubleshooting.\u003c\/p\u003e\n\u003ch2\u003eClear Digital Readout\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003e4-digit LED display\u003c\/strong\u003e provides clear real-time information for monitoring the power supply output.\u003c\/p\u003e\n\u003cp\u003eThe display allows technicians to quickly check:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003eOutput voltage\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eOutput current\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eOutput power\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThis is particularly useful when diagnosing smartphones and tablets where small changes in current consumption can help identify abnormal power conditions.\u003c\/p\u003e\n\u003ch2\u003eDual Safety Control\u003c\/h2\u003e\n\u003cp\u003eThe SPPS-C305 features separate controls for \u003cstrong\u003epower and output\u003c\/strong\u003e, allowing technicians to keep the unit powered while disabling the output when connecting or disconnecting a device.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003eMain power switch\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eIndependent output ON\/OFF control\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThis provides more convenient control during repeated repair and testing operations.\u003c\/p\u003e\n\u003ch2\u003eCompact Design for Repair Benches\u003c\/h2\u003e\n\u003cp\u003eWith a compact form factor and high power density, the SPPS-C305 is well suited to \u003cstrong\u003esmartphone repair benches, electronics workshops, service centers, and portable repair setups\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eA temperature-controlled fan helps manage internal heat while maintaining reliable operation during extended testing.\u003c\/p\u003e\n\u003ch2\u003eUSB 5V\/2A Output\u003c\/h2\u003e\n\u003cp\u003eThe built-in \u003cstrong\u003e5V\/2A USB output\u003c\/strong\u003e provides an additional power source for compatible USB-powered devices and accessories used around the repair workstation.\u003c\/p\u003e\n\u003ch2\u003eSPPS-C305 Specifications\u003c\/h2\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eParameter\u003c\/th\u003e\n\u003cth align=\"right\"\u003eSPPS-C305\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eRated Voltage\u003c\/td\u003e\n\u003ctd align=\"right\"\u003e0–30V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRated Current\u003c\/td\u003e\n\u003ctd align=\"right\"\u003e0–5A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRated Power\u003c\/td\u003e\n\u003ctd align=\"right\"\u003e150W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUSB Output\u003c\/td\u003e\n\u003ctd align=\"right\"\u003e5V \/ 2A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLoad Regulation – Voltage\u003c\/td\u003e\n\u003ctd align=\"right\"\u003e≤0.3% + 10mV\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLoad Regulation – Current\u003c\/td\u003e\n\u003ctd align=\"right\"\u003e≤0.1% + 2.5mA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLine Regulation – Voltage\u003c\/td\u003e\n\u003ctd align=\"right\"\u003e≤0.01% + 2.5mV\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLine Regulation – Current\u003c\/td\u003e\n\u003ctd align=\"right\"\u003e≤0.1% + 2.5mA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSetting Resolution – Voltage\u003c\/td\u003e\n\u003ctd align=\"right\"\u003e10mV\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSetting Resolution – Current\u003c\/td\u003e\n\u003ctd align=\"right\"\u003e1mA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eReadback Resolution – Voltage\u003c\/td\u003e\n\u003ctd align=\"right\"\u003e10mV\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eReadback Resolution – Current\u003c\/td\u003e\n\u003ctd align=\"right\"\u003e1mA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSetting Accuracy – Voltage\u003c\/td\u003e\n\u003ctd align=\"right\"\u003e≤0.05% + 10mV\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSetting Accuracy – Current\u003c\/td\u003e\n\u003ctd align=\"right\"\u003e≤0.01% + 10mA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eReadback Accuracy – Voltage\u003c\/td\u003e\n\u003ctd align=\"right\"\u003e≤0.05% + 10mV\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eReadback Accuracy – Current\u003c\/td\u003e\n\u003ctd align=\"right\"\u003e≤0.01% + 10mA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRipple – Voltage\u003c\/td\u003e\n\u003ctd align=\"right\"\u003e≤100mVp-p \/ ≤15mVrms\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRipple – Current\u003c\/td\u003e\n\u003ctd align=\"right\"\u003e≤15mArms\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRise Time – No Load\u003c\/td\u003e\n\u003ctd align=\"right\"\u003e≤200ms\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRise Time – Full Load\u003c\/td\u003e\n\u003ctd align=\"right\"\u003e≤300ms\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFall Time – No Load\u003c\/td\u003e\n\u003ctd align=\"right\"\u003e≤20s\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFall Time – Full Load\u003c\/td\u003e\n\u003ctd align=\"right\"\u003e≤300ms\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDynamic Response\u003c\/td\u003e\n\u003ctd align=\"right\"\u003e≤200ms\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEfficiency\u003c\/td\u003e\n\u003ctd align=\"right\"\u003e≥85%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch2\u003eTypical Smartphone \u0026amp; Tablet Repair Applications\u003c\/h2\u003e\n\u003cp\u003eThe SPPS-C305 can be used for:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003eSmartphone motherboard short-circuit detection\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eTablet motherboard troubleshooting\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eNo-power and boot-failure diagnosis\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eAbnormal current consumption testing\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eBattery connector power testing\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003ePower management circuit testing\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eCharging circuit troubleshooting\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eMotherboard repair and rework\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003ePost-repair power testing\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eComponent-level electronics diagnostics\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eA Practical Power Supply for Mobile Repair Technicians\u003c\/h2\u003e\n\u003cp\u003eFor smartphone and tablet repair, the power supply is more than a general-purpose DC source. It is a \u003cstrong\u003ediagnostic tool for understanding how a motherboard responds to controlled voltage and current\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eThe KUAIQU SPPS-C305 combines adjustable output, precise control, digital monitoring, and independent output switching in a compact design, making it a practical choice for \u003cstrong\u003eprofessional smartphone repair shops, tablet technicians, motherboard repair engineers, and electronics service centers\u003c\/strong\u003e.\u003c\/p\u003e","brand":"Shenzhen Kuaiqu Electronic Co., Ltd","offers":[{"title":"SPPS-C305","offer_id":47855261548721,"sku":null,"price":79.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0705\/8027\/3329\/files\/1.1.webp?v=1787024425","url":"https:\/\/www.kuaiquinstrument.com\/es\/products\/30v-5a-dc-power-supply-for-smartphone","provider":"KUAIQU Instrument Store","version":"1.0","type":"link"}