Blog về công ty Recycle Microchip AC/DC Power And Energy:AC Monitor,DC Monitor,Power/Current Monitor

Recycle Microchip AC/DC Power And Energy:AC Monitor,DC Monitor,Power/Current Monitor

Shenzhen Mingjiada Electronics Co., Ltd. has been specialising in the field of electronic component recycling for many years and is a professional provider of inventory management and recycling services within the industry. We purchase genuine, original manufacturer products, obsolete stock, discontinued stock and idle chips at competitive prices, helping businesses to quickly clear their inventory, recover capital and reduce warehousing and management costs.

Key Advantages of Our Recycling Service

1. High-value recycling with industry-leading quotes

Based on global market trends and taking into account model, batch, packaging, quantity and condition (original packaging/removed from board/on board), we provide accurate quotes that are 10%–30% higher than those of our competitors.

There are absolutely no hidden deductions; genuine, original products (whether in original packaging or on reels) will be prioritised for higher quotes, whilst slow-moving stock, discontinued stock and dismantled components will all be fairly priced.

2. Comprehensive Recycling Across All Categories, with No Entry Barriers

No quantity restrictions: from a single sample to hundreds of stock items, right through to bulk orders of tens of thousands, we cater for it all;

No condition restrictions: we accept brand-new, original products; slow-moving stock; components installed on circuit boards or those that have been removed; and components that have passed testing;

3. Secure, Efficient and Prompt Payment

Streamlined process: Simply provide part numbers, quantities, batch numbers and a list of conditions; we will issue a preliminary quote within one hour and complete an accurate valuation within 24 hours;

Flexible settlement: We support cash, telegraphic transfers and bank transfers; payment is made immediately upon confirmation of receipt, with no credit terms or delays;

Confidential transactions: We strictly protect client information throughout the entire process, sign non-disclosure agreements to prevent any leakage of stock information, and safeguard clients’ commercial privacy.

4. One-stop, end-to-end service

From stock categorisation → submission of the inventory list → quotation → inspection → settlement → logistics, we provide comprehensive support throughout the entire process to ensure you enjoy a hassle-free and efficient experience.

Transaction Process

Submit Inventory List: Compile detailed chip information (model, quantity, batch, package type, condition, packaging) and send it via WeChat, email or telephone;

Accurate Quotation: Our evaluation team will promptly verify the specifications and market conditions, and issue a formal quotation;

Transaction Confirmation: Once both parties have reached an agreement, a buy-back agreement is signed, specifying the delivery method (collection from your premises/courier);

Delivery and Payment: Settlement is processed immediately upon on-site inspection or receipt of the goods, ensuring prompt payment.

I. AC Monitors

AC monitors are primarily designed for single-phase and three-phase grid-side energy measurement. Their core consists of a dedicated analogue front-end (AFE) for metering and an integrated power measurement chip, making them suitable for monitoring mains AC circuits. They enable high-precision calculation of AC parameters without the need for a large number of discrete peripheral components.

Representative models include the MCP39F501 and MCP39F511N integrated power monitoring chips, as well as the MCP3912/MCP3913/MCP3914 series of 24-bit Δ-Σ ADC analogue front-ends. The MCP39F501 is a single-chip, single-phase AC monitoring solution capable of independently calculating RMS voltage, RMS current, active power, reactive power, power factor, line frequency and cumulative energy. It supports bidirectional energy metering and is suitable for smart sockets, domestic smart meters and PDUs (Power Distribution Units); The MCP391x series multi-channel AFE features a high signal-to-noise ratio and a programmable sampling rate of up to 125 ksps. It supports three-phase AC data acquisition and, when paired with a host MCU, is used in industrial power monitoring, energy consumption gateways and online monitoring of power equipment.

Product features: High resistance to power-frequency interference, meeting energy metering accuracy standards; supports bidirectional power metering, capable of distinguishing between grid feed-in and reverse power flow; built-in overvoltage and overcurrent event detection with configurable alarm outputs; SPI digital interface for easy integration with MCUs and processors, suitable for automated equipment and building energy management systems.

II. DC Monitors

DC monitors are designed for various DC busbars, on-board power rails and battery-powered systems. Employing a high-side current sensing architecture, they integrate a current sense amplifier, a high-precision ADC and an energy accumulation register, specifically for monitoring DC voltage and DC current. They serve as core sensing components for servers, robots and battery management systems.

Mainstream PAC series DC monitors: PAC1711 (single-channel, 12-bit), PAC1811 (single-channel, 16-bit), PAC1934 (four-channel), PAC1861 (16-bit, up to 65 V). The PAC1934 four-channel DC monitor can simultaneously monitor four independent DC power rails. The energy integration period can be flexibly configured between 1 ms and 36 hours, automatically accumulating energy consumption data. It is suitable for multi-rail power supply monitoring in AI computing servers and multi-actuator power supply monitoring in humanoid robots; The PAC1711/PAC1811 feature extremely low power consumption and are suitable for IoT terminals, portable devices and in-vehicle low-voltage power supply monitoring; they support programmable threshold alarms, with voltage or current exceeding limits triggering a hardware alarm signal directly.

Product features: High-side current sensing, without disrupting the power supply ground loop; Wide voltage measurement range, covering low-voltage 5V, 12V, 24V and 48V DC buses; low quiescent power consumption, with minimal power loss from the monitoring circuit itself; I²C communication interface, allowing instantaneous values and cumulative energy to be read directly from registers; wide operating temperature range of –40°C to +125°C, meeting industrial and automotive-grade environmental requirements.

III. Power/Current Monitors

Power/current monitors are integrated, comprehensive monitoring devices which, building upon DC monitoring, perform real-time instantaneous power calculations and long-term energy accumulation whilst simultaneously capturing current waveforms. They enable the integrated measurement of current, voltage, power and energy consumption, covering scenarios involving the synchronous monitoring of multiple loads.

The PAC1954 four-channel power/current sensor, with a measurement voltage range of 0–32 V and 16-bit resolution, replaces multiple discrete current-sensing devices with a single chip. It measures currents from 1 mA to 10 A without requiring any hardware configuration changes and is widely used in server power distribution and multi-module load power consumption monitoring; The PAC1761/PAC1861 support bus voltages of up to 65 V and feature two built-in alarm outputs, making them suitable for power monitoring in industrial DC power supplies and energy storage converters. These devices integrate current detection amplifiers, ADCs and digital processing units; they calculate power in real time without the need for an external MCU, directly outputting the calculated power and energy data. This reduces the computational load on the host controller and simplifies firmware development.

Product Features: Real-time automatic calculation of instantaneous power; hardware-level energy accumulation; multi-channel versions support simultaneous monitoring of multiple loads; programmable voltage, current and power thresholds with fault early warning capability; streamlined BOM, reducing the number of external sampling resistors and operational amplifiers; wide range of package options (UQFN, MSOP, etc.) suitable for high-density PCB designs; ideal for power management in humanoid robots, industrial power modules and power monitoring in telecommunications equipment.

IV. Overview of Solution Applications

Microchip’s comprehensive energy monitoring product portfolio provides full coverage of AC grids, DC buses and on-board loads. AC monitors focus on grid-level energy metering; DC monitors specialise in DC rail voltage and current acquisition; whilst power/current monitors emphasise multi-channel load power consumption statistics and cumulative energy consumption. The complete solution is widely used in smart power distribution, industrial control, AI computing servers, humanoid robots, energy storage systems, automotive electronics and IoT terminals. It helps equipment manufacturers rapidly establish intelligent power management systems for power supply health monitoring, energy consumption optimisation and fault protection, thereby enhancing the reliability of the entire system and improving energy utilisation efficiency.